Attribute | Example Value |
---|---|
featureType | timeSeries |
ShortName | GLAH12 |
title | GLAS/ICESat L2 Global Antarctic and Greenland Ice Sheet Altimetry Data (HDF5) |
comment | GLAH12 contains the ice sheet elevation and elevation distribution corrected for geodetic and atmospheric effects calculated from algorithms fine-tuned for ice sheet returns. Data granules contain 14 orbits of data within the ice sheet mask. |
summary | GLAH12 contains ice sheet elevation and elevation distribution calculated from algorithms fine-tuned for ice sheet returns for use by researchers. Parameters are at the full 40Hz resolution that fall within the ICESat ice sheet mask. Each GLAH12 file was created from an equivalent GLA12 binary file. The data used to create the GLAH12 values are contained in the equivalent GLAHxx files for the GLAxx files. See the provenance metadata for the creation of the GLA12. |
license | http://nsidc.org/data/icesat/disclaimer.html |
references | http://nsidc.org/data/docs/daac/glas_icesat_l1_l2_global_altimetry.gd.html (Guide Document for this product at NSIDC), http://nsidc.org/daac/icesat/index.html (GLAS Product page at NSIDC) |
AccessConstraints | Data may not be reproduced or distributed without including the CitationForExternalPublication for this product included in this Metadata. Data may not be distributed in an altered form without the written permission of the GLAS Science Team. |
CitationforExternalPublication | The data used in this study were produced by the GLAS Science Team at the ICESat Science Investigator-led Processing System (I-SIPS) at NASA/GSFC. The data archive site is the NSIDC DAAC. |
contributor_role | Data Originator, Investigator, Producer, Producer |
contributor_name | David W. Hancock (David.W.Hancock@nasa.gov), Bob E Schutz (schutz@utcsr.ae.utexas.edu), Jay Zwally (Jay.Zwally@nasa.gov), John P DiMarzio (John.P.Dimarzio.1@nasa.gov) |
creator_name | ICESat Science Investigator-led Processing System (I-SIPS) |
creator_email | David.W.Hancock@nasa.gov |
publisher_name | NSIDC User Services |
publisher_email | nsidc@nsidc.org |
publisher_url | http://nsidc.org/daac/icesat/index.html |
platform | Ice, Cloud, and Land Elevation Satellite (ICESat) |
instrument | Geoscience Laser Altimeter System (GLAS) |
processing_level | 2 |
date_created | 2013-01-16T18:58:01 |
spatial_coverage_type | Horizontal |
history | 2011-09-17T02:59:51 glas_alt 6.0.1 GLA12_633_2123_002_0141_0_01_0001.DAT, 2013-01-16T18:58:01.000000Z GLA12_h5_convert Version 1.2 (January 2013) ./GLAH12_633_2123_002_0141_0_01_0001.H5 |
geospatial_lat_min | -90.0 |
geospatial_lat_max | 90.0 |
geospatial_lon_min | -180.0 |
geospatial_lon_max | 180.0 |
geospatial_lat_units | degrees_north |
geospatial_lon_units | degrees_east |
keywords | Earth Science > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation > Laser Reflectance, Earth Science > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation, Earth Science > Land Surface > Topography > Terrain Elevation, Earth Science > Cryosphere > Sea Ice > Reflectance > Laser Reflectance, Earth Science > Oceans > Sea Ice > Reflectance > Laser Reflectance |
keywords_vocabulary | GCMD Science Keywords Version 6.0 |
standard_vocabulary_name | CF-1.6 |
naming_authority | http://dx.doi.org |
project | Ice, Cloud, and Land Elevation Satellite (GLAS_HDF) |
time_type | UTC |
date_type | J2000 |
time_coverage_start | 2008-03-03T02:51:46 |
time_coverage_end | 2008-03-04T01:24:53 |
time_coverage_duration | 81280 |
source | Satellite Measurements |
HDFVersion | HDF5 1.8.9 |
identifier_file_uuid | 599740C3-F062-4F49-A756-8A0DA37BC95B |
identifier_product_doi | 10.5067/ICESAT/GLAS/DATA205 |
identifier_product_type | GLAH12 |
identifier_product_format_version | 1.0 |
Conventions | CF-1.6 |
institution | National Aeronautics and Space Administration (NASA) |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
DS_UTCTime_1 | DOUBLE (UNLIMITED) | Transmit Time of First Shot in frame in J2000 (time) | seconds since 2000-01-01 12:00:00 UTC | The transmit time of the first shot in the 1 second frame measured as UTC seconds elapsed since Jan 1 2000 12:00:00 UTC. This time has been derived from the GPS time accounting for leap seconds. | Rel 33 GLAS Binary Data | NOT_SET |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
i_rec_ndx | INTEGER (UNLIMITED) | GLAS Record Index (NOT_SET) | NOT_SET | Unique index that relates this record to the corresponding record(s) in each GLAS data product. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_shot_count | INTEGER (UNLIMITED) | GLAS shot counter (NOT_SET) | NOT_SET | Identifies each laser shot within a record index. A combination of i_rec_ndx and i_shot_count can be used to uniquely identify each GLAS laser shot. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
d_transtime | DOUBLE (UNLIMITED) | One way transit time (NOT_SET) | seconds | One way transit time calculated using the preliminary range offset. This is added to the UTC time tag to get the ground bounce times at which to calculate the orbit. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
d_deltagpstmcor | DOUBLE (UNLIMITED) | Delta GPS time correction (NOT_SET) | seconds | The high frequency delta GPS time correction calculated during the precision orbit processing step. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
shot_time_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Shot time flag; Indicates what shot time is used.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
gps_time_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | GPS time flag; Indicates if delta gps time correction is applied to shot time.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
pl_timing_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Post-launch timing; indicates if post-launch timing bias is applied. Data value is stored in the Metadata group.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
ddelay_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Digitizer turn-on delay flag; Indicates if digitizer turn-on delay is accounted for in shot time. Data value is stored in the Metadata group.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
peaktp_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Peak of transmit pulse flag; Indicates if time to peak of transmit pulse is accounted for in shot time.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_lat | DOUBLE (UNLIMITED) | Spot 1 Coordinate Data, Latitude Corrected (latitude) | degrees_north | The geodetic latitude of the laser spot computed from the Precision orbit, precision attitude, and ice-sheet specific range after instrument corrections, atmospheric delays and tides have been applied. The values are in degrees north. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_lon | DOUBLE (UNLIMITED) | Spot 1 Coordinate Data, Longitude Corrected (longitude) | degrees_east | The longitude of the laser spot computed from the Precision orbit, precision attitude, and ice-sheet specific range after instrument corrections, atmospheric delays and tides have been applied. The values are in degrees east. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
i_track | INTEGER (UNLIMITED) | Track (NOT_SET) | NOT_SET | The track number. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
apid_ADLg_1_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer large wf packet APID availability flag for 1st 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADLg_2_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer large wf packet APID availability flag for 2nd 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADLg_3_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer large wf packet APID availability flag for 3rd 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADLg_4_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer large wf packet APID availability flag for 4th 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADSm_1_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer small wf packet APID availability flag for 1st 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADSm_2_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer small wf packet APID availability flag for 2nd 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADSm_3_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer small wf packet APID availability flag for 3rd 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADSm_4_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer small wf packet APID availability flag for 4th 10 shots
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_PC532_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | 532 Photon counter packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_CD1064_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | 1064 Cloud Digitizer packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ADSci_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Ancillary science packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ASAD_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Altimeter Digitizer telemetry data in Ancillary science packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ASPC_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Photon counter telemetry data in Ancillary science packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ASCF_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Cloud Digitizer telemetry data in Ancillary science packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_ASCT_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | C&T board telem. data in Ancillary science packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_CT20_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | CT HW telemetry packet #1 (APID 20) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_CT21_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | CT HW telemetry packet #2 (APID 21) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_CT22_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | CT HW telemetry packet #3 (APID 22) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_CT23_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | CT HW telemetry packet #4 (APID 23) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_CT50_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | CT HW telemetry packet #5 (APID 50) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_SS24_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Small software telemetry packet #1 (APID 24) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_LS25_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Large software telemetry packet #1 (APID 25) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_LS55_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | Large software telemetry packet #2 (APID 55) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_GPS_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | GPS telemetry packet APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_PRAP_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | S/C position, rate, and attitude telemetry packet (PRAP) APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_LPA_1_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | LPA packet #1 APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_LPA_2_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | LPA packet #2 APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_LPA_3_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | LPA packet #3 APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
apid_LPA_4_flg | INTEGER_1 (UNLIMITED) | APID Data Availability Flag (NOT_SET) | NOT_SET | LPA packet #4 APID availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
orbit_pred_flg | INTEGER_1 (UNLIMITED) | POD flag (Orbit Flag) (NOT_SET) | NOT_SET | Predicted or precision orbit flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_man_flg | INTEGER_1 (UNLIMITED) | POD flag (Orbit Flag) (NOT_SET) | NOT_SET | Maneuver flag. If maneuvers occurred orbit is considered degraded.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_model_flg | INTEGER_1 (UNLIMITED) | POD flag (Orbit Flag) (NOT_SET) | NOT_SET | Model problems flag. model_problems indicated when orbit RMS > 5 cm; indicates required accuracy not met.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_att_flg | INTEGER_1 (UNLIMITED) | POD flag (Orbit Flag) (NOT_SET) | NOT_SET | Attitude flag; modeled_attitude_used indicates possible orbit degradation.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_array_flg | INTEGER_1 (UNLIMITED) | POD flag (Orbit Flag) (NOT_SET) | NOT_SET | Solar ray orientation flag; modeled_solar_ray_orientation indicates possible orbit degradation.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_gps_flg | INTEGER_1 (UNLIMITED) | POD flag (Orbit Flag) (NOT_SET) | NOT_SET | GPS flag; GPS_data_missing indicates GPS data missing from portion of this record and possible degradation.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_offnadir_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | Off-nadir angle flag; Indicates if off-nadir angle is within limits.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_oceansw_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | Ocean sweep flag; Indicates if an ocean sweep is within the time frame of this record.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_pointing_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | Target of opportunity off-pointing flag; Indicates if this record is within time of target of opportunity off-pointing.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_steering_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | Steering to reference track flag; Indicates if this record is within target of opportunity off-pointing.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_actual_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | Actual data bits flag; Indicates if the first 3 Attitide Flags have been set based on actual data, if ignore, then IGNORE those bits.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_ist_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | IST data flag; Indicates if IST data are good, missing for at least a portion of the time of this frame, noisy for at least a portion of the time of this frame or noisy and missing for at least a portion of the time of this frame.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_gyro_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | GYRO data flag; Indicates if GYRO data are good, missing for at least a portion of the time of this frame, noisy for at least a portion of the time of this frame or noisy and missing for at least a portion of the time of this frame.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_lrs_flg | INTEGER_1 (UNLIMITED) | Attitude Flag 1 (NOT_SET) | NOT_SET | LRS Data flag; Indicates the following conditions: LRS data good, consists of star, laser and CRS; LRS data good, but no star data for at least a portion of this frame; LRS data good, but no laser data for at least a portion of this frame; LRS data good, but no CRS data for at least a portion of this frame; LRS data good, but only CRS data for at least a portion of this frame; LRS data good, but only laser data for at least a portion of this frame; LRS data good, but only star data for at least a portion of this frame; Missing LRS for at least a portion of the time of this frame.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
altfrm_corr_flg | INTEGER_1 (UNLIMITED) | Altimeter Frame Quality Flag (NOT_SET) | NOT_SET | Corrections flag; Indicates if all data in frame are good with appropriate corrections applied; or if some of data are not corrected or have measurement problems.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
altfrm_data_flg | INTEGER_1 (UNLIMITED) | Altimeter Frame Quality Flag (NOT_SET) | NOT_SET | Frame data flag; Indicates if there are at least some usable data in the frame; or if all elevations in the frame are bad due to problems with corrections.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
altfrm_meas_flg | INTEGER_1 (UNLIMITED) | Altimeter Frame Quality Flag (NOT_SET) | NOT_SET | Measurements flag; Indicates if all GLAS measurements are good or if there is at least one unusable measurement in the frame.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
altfrm_use_flg | INTEGER_1 (UNLIMITED) | Altimeter Frame Quality Flag (NOT_SET) | NOT_SET | Usable Measurements flag; Indicates if there is at least one usable measurement in the frame; or if all GLAS measurements are bad.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_tpazimuth_avg | DOUBLE (UNLIMITED) | Transmit Pulse azimuth - frame avg (NOT_SET) | degrees | Transmit pulse azimuth as measured by the LPA. Averaged over the 1-second frame. From ANC09. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_tpeccentricity_avg | DOUBLE (UNLIMITED) | Transmit Pulse eccentricity - frame avg (NOT_SET) | NOT_SET | Transmit pulse eccentricity as measured by the LPA. Averaged over the 1-second frame. From ANC09. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_tpmajoraxis_avg | DOUBLE (UNLIMITED) | Transmit Pulse major axis - frame avg (NOT_SET) | meters | Transmit pulse major axis as measured by the LPA. Averaged over the 1-second time frame. From ANC09. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_tpintensity_avg | DOUBLE (UNLIMITED) | Transmit Pulse intensity - frame avg (NOT_SET) | count | Transmit pulse intensity as measured by the LPA. Averaged over the 1-second time frame. From ANC09. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_localSolarTime | DOUBLE (UNLIMITED) | Local apparent solar time (NOT_SET) | seconds | Local apparent solar time. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_Azimuth | DOUBLE (UNLIMITED) | Local Azimuth (solar_azimuth_angle) | degrees | Mean azimuth measured clockwise from north based on latitude, longitude, and elevation of a 1 second interval of the trace of the ground footprint-center. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_SolAng | DOUBLE (UNLIMITED) | Solar Angle (NOT_SET) | degrees | Solar Angle above or below the plane tangent to the ellipsoid surface at the laser spot. Positive values mean the sun is above the horizon, while negative values mean it is below the horizon. The effect of atmospheric refraction is not included. This is a low-precision value, with approximately one degree accuracy. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_reflCor_atm | DOUBLE (UNLIMITED) | Reflectivity Correction Factor For Atmospheric Effects (NOT_SET) | NOT_SET | This reflectance correction factor is calculated as 1 / e^(-2(tc+ta+tp+tm)), where tc is the cloud (column) integrated optical depth, ta is the aerosol (column) integrated optical depth, tp is the planetary boundary layer optical depth, and tm is the molecular optical depth. tm is a constant equal to -log(gd_T_RTatm)/2, where gd_T_RTatm = 0.98 is defined in const_elev_mod.f90 or read from ANC07-03. The attenuation correction factor has been corrected for multiple scattering. The reflectance has been corrected for waveform saturation. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
surf_ld_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type flag; indicates presence of land.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
surf_si_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type Sea Ice flag; indicates presence of sea ice.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
surf_oc_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type ocean flag; indicates presense of ocean.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
surf_is_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type Ice Sheet flag; indicates presense of ice sheet.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_ldtide_flg | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Load tides flag; Indicates if a correction for the dynamic effect of load tides has been applied to the range before the elevation was calculated.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_octide_flg | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Ocean tides flag; Indicates if a correction for the dynamic effect of ocean tides has been applied to the range before the elevation was calculated.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_setide_flag | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Solid earth tides flag; Indicates if a correction for the dynamic effect of solid earth tides has been applied to the range before the elevation was calculated.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_drytrop_flg | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Dry troposphere flag; Indicates if a correction for propagation errors due to the dry troposphere was applied to the range before the elevation was calculated.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_wettrop_flg | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Wet troposphere flag Indicates if a correction for propagation errors due to the wet troposphere was applied to the range before the elevation was calculated.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_intbias_flg | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Internal range bias flag; Indicates if the internal range bias was applied to the range before the elevation was calculated and if the value of d_refRng on the record has this correction applied.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_plbias_flg | INTEGER_1 (UNLIMITED) | Range Correction Flag (NOT_SET) | NOT_SET | Post-launch range bias flag; Indicates if the post-launch range bias was applied to the range before the elevation was calculated and if the value of d_refRng on the record has this correction applied.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_model_flg | INTEGER_1 (UNLIMITED) | Correction Status Flag (NOT_SET) | NOT_SET | Geophysical corrections flag; Indicates if the load and ocean tides are from global model, regional model no. 1, regional model no. 2, or regional model no. 3.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_oldmet_flg | INTEGER_1 (UNLIMITED) | Correction Status Flag (NOT_SET) | NOT_SET | Geophysicat corrections flag; Indicates if troposphere corrections are based on 6hr NCEP grids surrounding data, 6hr NCEP grids but at least one was >6 but <24 hrs away from data, standard atm, or reanalyzed met data.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
rng_atmcorr_flg | INTEGER_1 (UNLIMITED) | Correction Status Flag (NOT_SET) | NOT_SET | Geophysical corrections flag; Indicates values used to calculate corrected reflectivity - computed aerosol and cloud optical depths used, default-null aerosol and computed cloud optical depths, computed aerosol and default-null cloud optical depths, default-null values for aerosol and cloud optical depths, or if maximum bound set.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
atm_gla11_flg | INTEGER_1 (UNLIMITED) | Atmosphere Availability Flag (NOT_SET) | NOT_SET | GLA11 data availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
atm_gla09_flg | INTEGER_1 (UNLIMITED) | Atmosphere Availability Flag (NOT_SET) | NOT_SET | GLA09 data availability flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
atm_char_flag | INTEGER_1 (UNLIMITED) | Atmosphere Characterization Flag (NOT_SET) | NOT_SET | Flag to characterize cloud and blowing snow state of the atmosphere based on combinations of hi_cloud (> 5 km), mid_cloud (>2, <=5 km), low cloud (> 500 m, <=2 km), blowing snow or fog and hi/lo optical depth. Additional values indicate if the characterization was not tested or if the data quality was insufficient to assign a flag.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
atm_char_conf | INTEGER_1 (UNLIMITED) | Atmosphere Characterization Flag Confidence (NOT_SET) | NOT_SET | Confidence level ascribed to the atmosphere characterization flag. 0=not applicable (for contamination flag values of 9 or 10). 1: low confidence. 2: reasonable confidence. 3: high confidence.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
cld1_mswf_flg | INTEGER_1 (UNLIMITED) | Cloud Multiple Scattering Warning Flag (NOT_SET) | NOT_SET | The multiple scattering warning flag (MSWF) is based on the total column optical depth (aerosol plus cloud) calculated in GLA11 using 532nm. It is intended as a way to quickly obtain information about the potential severity of multiple scattering with regards to the range-to-surface calculated by the altimetry processing software. The multiple scattering warning flag will have values ranging from 0-14, based on the total column optical depth. A warning flag value of 15 will signify invalid. An invalid will be encoded if an optical depth in any of the layers in the 1-second column could not be calculated. This usually occurs in a very optically thick cloud which extinguishes the signal. It could also occur if the extinction-to-backscatter ratio assignment is set too high, causing the transmission calculations in the lidar inversion to go out-of-range.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
MRC_af_flg | INTEGER_1 (UNLIMITED) | Medium Resolution Cloud Availability Flag (NOT_SET) | NOT_SET | Indicates number of cloud layers at medium resolution from the 532 nm channel; not_searched = cloud layers were not searched for; not_detected = cloud layers were searched for, but not detected.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
d_Surface_pres | DOUBLE (UNLIMITED) | Surface Pressure (surface_temperature) | hPa | Atmospheric pressure at Earth's surface level measured in hPa and derived from the meteorological data files. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
d_Surface_relh | DOUBLE (UNLIMITED) | Relative Humidity (surface_air_pressure) | percent | Atmospheric relative humidity at Earth's surface level measured as a percentage and derived from the meteorological data files. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
d_Surface_temp | DOUBLE (UNLIMITED) | Surface Temperature (relative_humidity) | degree Celsius | Atmospheric temperature at Earth's surface level measured in degrees Celcius and derived from the meteorological data files. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
DS_UTCTime_40 | DOUBLE (UNLIMITED) | Transmit time of each shot in J2000 seconds (time) | seconds since 2000-01-01 12:00:00 UTC | The transmit time of each shot in the 1 second frame measured as UTC seconds elapsed since Jan 1 2000 12:00:00 UTC. This time has been derived from the GPS time accounting for leap seconds. | Rel 33 GLAS Binary Data | NOT_SET | ||||
DS_DEMhiresArElv | INTEGER (UNLIMITED) | Location index for D_DEMhiresArElv (NOT_SET) | NOT_SET | This array indicates the relative position of each d_DEMhiresArElv measurement. Direction is relative to the spot and indicated in cardinal points. The position of the spot is indicated as ORIGIN.
| Constants | NOT_SET |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
i_rec_ndx | INTEGER (UNLIMITED) | GLAS Record Index (NOT_SET) | NOT_SET | Unique index that relates this record to the corresponding record(s) in each GLAS data product. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
i_shot_count | INTEGER (UNLIMITED) | GLAS shot counter (NOT_SET) | NOT_SET | Identifies each laser shot within a record index. A combination of i_rec_ndx and i_shot_count can be used to uniquely identify each GLAS laser shot. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
rng_uqf_sigbeg1_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Signal begin range increment flag (standard).
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_sigend1_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Signal end range increment flag (standard).
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_thres1_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Threshold retracker range increment flag (standard).
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_cent1_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Centroid retracker range increment (standard).
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_sigbeg2_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Signal begin range increment flag (alternate)
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_sigend2_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Signal end range increment flag (alternate)
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_thres2_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Threshold retracker range increment flag (alternate)
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_cent2_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Centroid retracker range increment flag (alternate)
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_is_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Ice sheet range increment flag.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_si_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Sea ice range increment flag.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_ld_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Land range increment flag.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
rng_uqf_oc_flg | INTEGER_1 (UNLIMITED) | Range Offset Quality/Use Flag (NOT_SET) | NOT_SET | Ocean range increment flag.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
sat_corr_flg | INTEGER_1 (UNLIMITED) | Saturation Correction Flag (NOT_SET) | NOT_SET | Saturation Correction Flag; Indicates if the saturation is Not Saturated (i_satNdx<2) or No Signal; Inconsequential (i_satNdx>=2 & i_pctSat<2.0); is Applicable (i_satNdx>=2 & i_pctSat>=2.0 & Full Width*<100ns); is Not Computable; is Not Applicable (i_satNdx>=2 & i_pctSat>=2.0 & Full Width*>=100ns).
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elev_use_flg | INTEGER_1 (UNLIMITED) | Elevation use flag (NOT_SET) | NOT_SET | Flag indicating whether the elevations on this record should be used.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
att_pad_use_flg | INTEGER_1 (UNLIMITED) | Pad Use Flag (NOT_SET) | NOT_SET | PAD Use Flag: Indicates if PAD used to determine spot location.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
att_calc_pad_flg | INTEGER_1 (UNLIMITED) | Calc Pad Use Flag (NOT_SET) | NOT_SET | Calc PAD Use Flag; Indicates if new PAD or pass-thru PAD was used to determine orbit.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
att_lpa_flg | INTEGER_1 (UNLIMITED) | LPA Problem Flag (NOT_SET) | NOT_SET | LPA Problem Flag; Indicates if LPA is good, missing or noisy.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
sigma_att_flg | INTEGER_1 (UNLIMITED) | Attitude Quality Indicator (NOT_SET) | NOT_SET | Attitude quality indicator flag.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
i_satNdx | INTEGER (UNLIMITED) | Saturation Index (NOT_SET) | ns | The count of the number of gates in a waveform which have an amplitude greater than or equal to i_satNdxTh (set in anc07_0004). The value 126 means 126 or more gates are above the saturation index threshold (i_satNdxth). | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_pctSAT | DOUBLE (UNLIMITED) | Percent Saturation (NOT_SET) | percent | Percent saturation (d_pctSAT) is calculated using the formula: d_pctSAT= 100*(saturation index)/ ( signal end - signal begin in nanoseconds). The alternate signal end/begin are used for GLA14 d_pctSAT, while the standard fit values are used for GLA06, 12, 13, and 15. The Saturation elevation correction is not applied in the geolocation processing computation of lat, lon and elev. Because the saturation corrections are small and data is acquired within 5 deg off nadir, effects on lat and lon can be ignored. To apply the saturation elevation correction to the elevations on the products it must be ADDED to the elevation estimates. Reported elevations for returns with invalid d_satElevCorr values and sat_corr_flg values of 3 or 4 are likely to have large, uncorrectable errors and should be excluded from analyses. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_lat | DOUBLE (UNLIMITED) | Coordinate Data, Latitude, specific to ice sheet range (NOT_SET) | degrees_north | The geodetic latitude of the laser spot computed from the Precision orbit, precision attitude, and ice-sheet specific range after instrument corrections, atmospheric delays and tides have been applied. The values are in degrees north. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_lon | DOUBLE (UNLIMITED) | Coordinate Data, Longitude, specific to ice sheet range (NOT_SET) | degrees_east | The longitude of the laser spot computed from the Precision orbit, precision attitude, and ice-sheet specific range after instrument corrections, atmospheric delays and tides have been applied. The values are in degrees east. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_elev | DOUBLE (UNLIMITED) | Surface Elevation (height_above_reference_ellipsoid) | meters | Surface elevation with respect to the ellipsoid at the spot location determined by the ice-sheet specific range after instrument corrections, atmospheric delays and tides have been applied. The saturation elevation correction (d_satElevCorr) has not been applied and needs to be added to this elevation. This can be over a one meter correction. If it is invalid then the elevation should not be used. The saturation correction flag (sat_corr_flg) is an important flag to understand the possible quality of the elevation data. The saturation index (i_satNdx) can be used for more understanding of concerns on data quality from saturation effects. Also no correction for pulse spreading from forward scatter has been applied. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_IceSVar | DOUBLE (UNLIMITED) | Standard Deviation of the ice sheet Gaussian Fit (NOT_SET) | volts | The standard deviation of the difference between the functional fit and the received echo using standard parameters. It is directly taken from GLA05 parameter d_wfFitSDev_2 (standard). | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_refRng | DOUBLE (UNLIMITED) | Reference Range (altimeter_range) | meters | Range in distance calculated from the time between the centroid of the transmit pulse and the farthest gate from the spacecraft of the received pulse. See the rngcorrflg to determine any corrections that have been applied. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_dTrop | DOUBLE (UNLIMITED) | Range Correction, Dry Troposphere (altimeter_range_correction_due_to_dry_troposphere) | meters | The range correction due to the dry troposphere. Validity is based on results of finding a range with the standard fit. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_wTrop | DOUBLE (UNLIMITED) | Range Correction_Wet Troposphere (altimeter_range_correction_due_to_wet_troposphere) | meters | The range correction due to the wet troposphere. (See ATBDs) | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_satElevCorr | DOUBLE (UNLIMITED) | Saturation Elevation Correction (NOT_SET) | meters | Correction to elevation for saturated waveforms. This correction has NOT been applied to the data. To apply it, SUBTRACT the correction from the range estimate. To apply the correction to the elevations it must be ADDED to the elevation estimates. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_ElevBiasCorr | DOUBLE (UNLIMITED) | Elevation Bias Correction (NOT_SET) | meters | Correction to elevation based on post flight analysis for biases determined for each campaign. This bias correction has not been applied to the data. To apply it SUBTRACT the correction from the range estimate. To apply the correction to the elevations it must be ADDED to the elevation estimates. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_beamCoelv | DOUBLE (UNLIMITED) | d_beamCoelv (NOT_SET) | degrees | Co-elevation (CE) is direction from vertical of the laser beam as seen by an observer located at the laser ground spot. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_beamAzimuth | DOUBLE (UNLIMITED) | d_beamAzimuth (NOT_SET) | degrees | The direction, eastwards from north, of the laser beam vector as seen by an observer at the laser ground spot viewing toward the spacecraft (i.e., the vector from the ground to the spacecraft). When the spacecraft is precisely at the geodetic zenith, the value will be 99999 degrees. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_cntRngOff | DOUBLE (UNLIMITED) | Centroid Range Offset (NOT_SET) | meters | Offset to be added to d_refRng to give the range in distance to the location of the centroid of the received echo from signal begin through signal end defined by the standard parameters. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_IsRngFst | DOUBLE (UNLIMITED) | Ice Sheet Range Offset using first peak (NOT_SET) | meters | Range offset to be added to d_refRng to calculate ice sheet specific range from centroid of first peak in standard gaussian fit. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_IsRngLast | DOUBLE (UNLIMITED) | Ice Sheet Range offset using last peak (NOT_SET) | meters | Range offset to be added to d_refRng to calculate ice sheet specific range from centroid of last peak in standard gaussian fit. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_isRngOff | DOUBLE (UNLIMITED) | Ice Sheet Range Offset (NOT_SET) | meters | Range offset to be added to d_refRng to calculate the range using the algorithm deemed appropriate for ice sheets. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_SigBegOff | DOUBLE (UNLIMITED) | Signal Begin Range Offset (NOT_SET) | meters | Offset to be added to d_refRng to give the range in distance to the location of the received echo calculated at the beginning of signal (closest to the spacecraft) using standard parameters. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_SigEndOff | DOUBLE (UNLIMITED) | Signal End Range Offset (NOT_SET) | meters | Offset to be added to d_refRng to give the range in distance to the location of the received echo calculated at the end of signal (farthest from the spacecraft) using standard parameters. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_TrshRngOff | DOUBLE (UNLIMITED) | Threshold Retracker Range Offset (NOT_SET) | meters | Offset to be added to d_refRng to give the range in distance to the threshold retracker location of the received echo using standard parameters. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
elv_cnt_1_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Standard parameterization; true if centroid of received pulse between signal begin and signal end defined for standard parameterization used to calculate elevation.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_cnt_2_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Alternate parameterization;indicates if centroid of received pulse between signal begin and signal end defined for alternate parameterization used to calculate elevation.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_peak_1_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Standard parameterization;Indicates if location of last gaussian peak in received pulse for standard parameterization used to calculate elevation.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_peak_2_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Alternate parameterization;Indicates if location of last gaussian peak in received pulse for alternate parameterization used to calculate elevation.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_thres_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Threshold retracker; Indicates if Location of threshold retracker used to calculate elevation.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_gauss_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Gaussion; Indicates if location associated with gaussian with largest peak used to calculate elevation.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_other_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Other algorithm; Indicates if other algorithm used to calculate elevation - see software release documentation for details.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
elv_cloud_flg | INTEGER_1 (UNLIMITED) | Elevation Definition Flag (NOT_SET) | NOT_SET | Cloud contamination; Indicates if Gain > flag value, indicating probable cloud contamination.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_TxNrg | DOUBLE (UNLIMITED) | 1064 nm Laser Transmit Energy (NOT_SET) | joules | The 1064 nm laser pulse transmitted energy in energy units, computed from the digitized outgoing pulse, and the transmit gain. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
d_d2refTrk | DOUBLE (UNLIMITED) | Distance to the reference ground track (NOT_SET) | meters | Distance to the reference ground track. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_DEM_elv | DOUBLE (UNLIMITED) | DEM Elevation (NOT_SET) | meters | Elevation at the footprint location from the SRTM30 (GTOPO30 + SRTM) Digital Elevation Model (DEM). The reference frame for the DEM elevation was changed to the TOPEX/Poseidon ellipsoid to make it consistent with the GLAS elevations. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_DEMhiresArElv | DOUBLE (UNLIMITED, 9) | DEMhiresArElv (NOT_SET) | meters | d_DEMhiresArElv is a 9 element array of high resolution DEM values. The array index corresponds to the position of the DEM value relative to the spot. (5) is the footprint center. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_eqElv | DOUBLE (UNLIMITED) | Equilibrium Tide Elevation (sea_surface_height_amplitude_due_to_equilibrium_ocean_tide) | meters | The equilibrium (long period) tide at last valid shot over the ocean. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_erElv | DOUBLE (UNLIMITED) | Solid Earth Tide Elevation (NOT_SET) | meters | The solid earth tide elevation. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_gdHt | DOUBLE (UNLIMITED) | Geoid (geoid_height_above_reference_ellipsoid) | meters | The height of the geoid above the ellipsoid. EGM2008 geoid height above the reference ellipsoid. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_ldElv | DOUBLE (UNLIMITED) | Load Tide Elevation (NOT_SET) | meters | The load tide elevation applied to each shot. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_ocElv | DOUBLE (UNLIMITED) | Ocean Tide Elevation (sea_surface_height_amplitude_due_to_non_equilibrium_ocean_tide) | meters | The ocean tide elevation from the TPX07.1 tide model. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_deltaEllip | DOUBLE (UNLIMITED) | Delta Ellipsoid (NOT_SET) | meters | Surface elevation (T/P ellipsoid) minus surface elevation (WGS84 ellipsoid). | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_poTide | DOUBLE (UNLIMITED) | Pole Tide (sea_surface_height_amplitude_due_to_pole_tide) | meters | Pole tide: an ocean tide which is the result of the Chandler wobble (a free nutation of the Earth caused by fluctuating pressure on the bottom of the ocean, caused by temperature and salinity changes and wind-driven changes in the circulation of the oceans). | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
i_DEM_hires_src_1 | INTEGER_1 (UNLIMITED) | High Resolution Source Flag (NOT_SET) | NOT_SET | High resolution DEM source provider; Indicates if no high res source available, unfinished research Shuttle Radar Topography Mission (SRTM) C-band 90m DEM produced by JPL (+-1.1km E-W swath), finished' SRTM C-band 90 m DEM produced by NGA (+-2.1km E-W swath), ICESat Greenland V1 1km DEM, ICESat Antarctica V1 500m DEM, 90m Canadian Digital Elevation Data (CDED), 90m Canadian Digital Elevation Data (CDED) if available otherwise finished SRTM C-band 90 m DEM.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_reflctUC | DOUBLE (UNLIMITED) | reflctUC (NOT_SET) | NOT_SET | Reflectivity, not corrected for atmospheric effects, is calculated as Refl = R/T, where R is the received energy after it has been scaled for range, and T is the transmitted energy. i_reflctUC has also been calibrated for gain non-linearity (only for non-saturated waveforms), ground truth calibration and boresight shift shadowing (BSS). It is not corrected for saturation effects. If the shot is saturated (satindex above 2) then to correct for saturation the reflectivity estimate needs to be multiplied by the ratio of the corrected energy to the uncorrected energy (sat corrected reflectivity = d_reflctUC * (d_RecNrgAll + d_satNrgCorr)/d_RecNrgAll). The atmospheric corrected reflectivity may be calculated from this uncorrected reflectivity by multiplying it by d_reflCor_atm. d_reflctUC is invalid where d_satNrgCorr is invalid. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_sDevNsOb1 | DOUBLE (UNLIMITED) | Standard deviation of 1064 nm Background noise, (alternate) (NOT_SET) | volts | The standard deviation of the background noise (alternate parameters). | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_satNrgCorr | DOUBLE (UNLIMITED) | Saturation Energy Correction (NOT_SET) | Joules | Correction to energy for saturated waveforms. This correction has not been applied to the energy. It should be ADDED to any echo pulse energy calculated from the pulse area under the waveform. Also any reflectivity estimates need to be corrected for this error in energy measurement. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_RecNrgAll | DOUBLE (UNLIMITED) | Received Energy signal begin to signal end (NOT_SET) | Joules | This is calculated by taking the area under the received waveform (referenced to the observed noise) from all responses between the noise crossing before the first threshold crossing and the noise crossing after the last threshold crossing. It is a rescaled value from the GLA01 parameter d_recNrgAll_EU and is not recomputed. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_skew2 | DOUBLE (UNLIMITED) | Skewness (NOT_SET) | NOT_SET | The skewness of the received echo from signal begin to signal end using standard parameters. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_kurt2 | DOUBLE (UNLIMITED) | Kurtosis of the Received Echo (standard) (NOT_SET) | NOT_SET | Kurtosis of the received echo from signal begin to signal end using standard parameters | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_maxRecAmp | DOUBLE (UNLIMITED) | Max Amplitude of Received Echo (NOT_SET) | volts | Maximum amplitude of the received echo. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_maxSmAmp | DOUBLE (UNLIMITED) | Peak Amplitude of Smoothed Received Echo (NOT_SET) | volts | The peak amplitude of the received echo after it has been smoothed to remove high frequency noise (see ATBD). | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
i_numPk | INTEGER (UNLIMITED) | Number of Peaks found in the Return (NOT_SET) | count | The number of peaks in the return echo found by the gaussian fitting procedure, using standard parameters. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
i_gval_rcv | INTEGER (UNLIMITED) | Gain Value used for Received Pulse (NOT_SET) | counts | Gain value used for received pulse - uncalibrated. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
d_FRir_cldtop | DOUBLE (UNLIMITED) | Full Resolution 1064 Cloud Top (NOT_SET) | meters | Full resolution (40 Hz) cloud top height obtained from the 1064 atmospheric channel. This parameter is in GLA09. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
d_FRir_intsig | DOUBLE (UNLIMITED) | Full Resolution 1064 Integrated Signal (NOT_SET) | 1/(m-sr) | Though called 'integrated signal' this is actually an average of all bins in the above-ground portion of the 1064 40 Hz profile with values above the threshold of 1.0e-7 (1/(m-sr) units). This parameter is for a 1 second record. This parameter is extracted from the equivalent parameter on GLA09. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
FRir_qa_flg | INTEGER_1 (UNLIMITED) | Full Resolution 1064 Quality Flag (NOT_SET) | NOT_SET | Full resolution 1064 Quality Flag; 0 - 12 indicate Cloud detected by cloud search algorithm with higher numbers indicating a stronger average signal from the region starting at cloud top and extending 500 m below cloud top height; 13 = Indicates the possible presence of a cloud based on the value of the integrated signal parameter (i_FRir_intsig) that was not detected directly by the cloud search algorithm. When this occurs, the 40 Hz cloud top height (i_Frir_cldtop) is set to a value of 10.0 km; 14 = Indicates the likely presence of low clouds (< 150 m) based on elevated signal from the two bins above the ground return bin that were not detected directly by the cloud search algorithm. When this occurs, the 40 Hz cloud top height (i_Frir_cldtop) is set to a value of 0.10; 15 = No clouds
| Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Attribute | Example Value |
---|---|
Campaign | 3J |
glas_osc_rate | 1.00000002934 |
glas_osc_rate_date | 2008-02-13 |
glas_osc_rate_time | 22:27:27 |
sc_osc_rate | 0.99999998854809 |
sc_osc_rate_date | 2008-02-13 |
sc_osc_rate_time | 22:27:27 |
internal_time_delay | 0.0000151100 |
internal_time_delay_date | 2008-02-13 |
internal_time_delay_time | 22:27:27 |
internal_range_delay | 9.5560 |
internal_range_delay_date | 2008-02-13 |
internal_range_delay_time | 22:27:27 |
Additional_Attribute | SP_ICE_PATH_NO, SP_ICE_GLAS_StartBlock, SP_ICE_GLAS_EndBlock, ReferenceOrbit, Track, PercentGroundHit, Cycle, OrbitQuality, Instance, Range_Bias, Range_Bias_Date, Range_Bias_Time, Timing_Bias, Timing_Bias_Date, Timing_Bias_Time |
globAvSrfPres1 | 100918.3941886 |
gASP_t1 | 257774400.0000000 |
globAvSrfPres2 | 100918.8625019 |
gASP_t2 | 257796000.0000000 |
globAvSrfPres3 | 100950.7786572 |
gASP_t3 | 257817600.0000000 |
globAvSrfPres4 | 100970.2879132 |
gASP_t4 | 257839200.0000000 |
globAvSrfPres5 | 100983.5085598 |
gASP_t5 | 257860800.0000000 |
internal_range_delay_desc | Internal range calibration bias determined during GLAS instrument integration testing and validated in-flight, meters. |
internal_time_delay_desc | Internal time calibration bias determined during GLAS instrument integration testing and validated in-flight, seconds. |
Attribute | Example Value |
---|---|
description | This group contains structured, computer-parseable ECHO-style collection and inventory-level metadata. |
HDFVersion | HDF5 1.8.9 |
ControlFile | cf_name=gla12_test.ctl |
Attribute | Example Value |
---|---|
DLLName | libDsESDTGlGLASPoly.001Sh.so |
GranuleTimeDuration | 81280 |
SpatialSearchType | Orbit |
DataFileFormat | HDF5 |
ScienceMimeType | application/x-hdfeos |
BrowseMimeType | application/x-hdfeos |
BrowseOnlineMimeType | image/jpeg |
ShortName | GLAH12 |
LongName | GLAS/ICESat L2 Global Antarctic and Greenland Ice Sheet Altimetry Data (HDF5) |
CollectionDescription | GLAH12 contains the ice sheet elevation and elevation distribution corrected for geodetic and atmospheric effects calculated from algorithms fine-tuned for ice sheet returns. Data granules contain 14 orbits of data within the ice sheet mask. |
VersionID | 33 |
CitationforExternalPublication | The data used in this study were produced by the GLAS Science Team at the ICESat Science Investigator-led Processing System (I-SIPS) at NASA/GSFC. The data archive site is the NSIDC DAAC. |
CollectionState | In Work |
MaintenanceandUpdateFrequency | Daily |
AccessConstraints | Data may not be reproduced or distributed without including the CitationForExternalPublication for this product included in this Metadata. Data may not be distributed in an altered form without the written permission of the GLAS Science Team. |
TemporalKeyword | Day |
SpatialKeyword | Global |
Attribute | Example Value |
---|---|
PercentGroundHit | AdditionalAttributesContainer |
OrbitQuality | AdditionalAttributesContainer |
Cycle | AdditionalAttributesContainer |
Track | AdditionalAttributesContainer |
Instrument_State | AdditionalAttributesContainer |
Timing_Bias | AdditionalAttributesContainer |
Timing_Drift | AdditionalAttributesContainer |
ReferenceOrbit | AdditionalAttributesContainer |
SP_ICE_PATH_NO | AdditionalAttributesContainer |
SP_ICE_GLAS_StartBlock | AdditionalAttributesContainer |
SP_ICE_GLAS_EndBlock | AdditionalAttributesContainer |
Instance | AdditionalAttributesContainer |
Range_Bias | AdditionalAttributesContainer |
Instrument_State_Date | AdditionalAttributesContainer |
Instrument_State_Time | AdditionalAttributesContainer |
Range_Bias_Date | AdditionalAttributesContainer |
Range_Bias_Time | AdditionalAttributesContainer |
Timing_Bias_Date | AdditionalAttributesContainer |
Timing_Bias_Time | AdditionalAttributesContainer |
Timing_Drift_Date | AdditionalAttributesContainer |
Timing_Drift_Time | AdditionalAttributesContainer |
identifier_product_doi | AdditionalAttributesContainer |
identifier_file_uuid | AdditionalAttributesContainer |
identifier_product_doi_authority | AdditionalAttributesContainer |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | A count of the number of exact repeats of this reference orbit. |
AdditionalAttributeName | Cycle |
ParameterUnitsofMeasurement | counts |
ParameterRangeBegin | 0 |
ParameterRangeEnd | 250 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | The number of times that we have returned to a specific reference orbit. |
AdditionalAttributeName | Instance |
ParameterUnitsofMeasurement | counts |
ParameterRangeBegin | 1 |
ParameterRangeEnd | 99 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | Flag word that indicates which redundant units (laser, detector, oscillator) of the GLAS instrument are in operation. |
AdditionalAttributeName | Instrument_State |
ParameterUnitsofMeasurement | Flag word |
ParameterRangeBegin | 0 |
ParameterRangeEnd | 5 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | date |
AdditionalAttributeDescription | The date that corresponds to the first valid Instrument_State. There is a maximum of two per granule. |
AdditionalAttributeName | Instrument_State_Date |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | time |
AdditionalAttributeDescription | The time that corresponds to the first valid Instrument_State. There is a maximum of two per granule. |
AdditionalAttributeName | Instrument_State_Time |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | varchar |
AdditionalAttributeDescription | Status word that states what type of orbit was used during processing of the data for the granule. It specifies the models used in the orbit determination program. This provides an indication of the quality of the orbits being applied to the data. |
AdditionalAttributeName | OrbitQuality |
ParameterUnitsofMeasurement | Flag |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | float |
AdditionalAttributeDescription | Percent of data for this granule that had a detected ground return of the transmitted laser pulse. |
AdditionalAttributeName | PercentGroundHit |
ParameterUnitsofMeasurement | Percent |
ParameterRangeBegin | 0.0 |
ParameterRangeEnd | 100.0 |
ParameterValueAccuracy | 1 |
ParameterMeasurementResolution | 1 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | The additive calibration correction in millimeters to apply to range based on the science team cal/val activities. |
AdditionalAttributeName | Range_Bias |
ParameterUnitsofMeasurement | Millimeters |
ParameterRangeBegin | -10000 |
ParameterRangeEnd | 10000 |
ParameterValueAccuracy | 1 |
ParameterMeasurementResolution | 1 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | date |
AdditionalAttributeDescription | The date that corresponds to the first valid Range_Bias. There are a maximum of two per granule. |
AdditionalAttributeName | Range_Bias_Date |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | time |
AdditionalAttributeDescription | The time that corresponds to the first valid Range_Bias. There are a maximum of two per granule. |
AdditionalAttributeName | Range_Bias_Time |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | Assigned number for which exact orbital elements describe the exact repeat orbit pattern. |
AdditionalAttributeName | ReferenceOrbit |
ParameterUnitsofMeasurement | Assigned number |
ParameterRangeBegin | 1 |
ParameterRangeEnd | 30000 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | Integer number within GLAS coverage scheme in which granule data ends. |
AdditionalAttributeName | SP_ICE_GLAS_EndBlock |
ParameterRangeBegin | 1 |
ParameterRangeEnd | 360 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | Integer number within GLAS coverage scheme in which granule data starts. |
AdditionalAttributeName | SP_ICE_GLAS_StartBlock |
ParameterRangeBegin | 1 |
ParameterRangeEnd | 360 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | Number which represents the GLAS path number. |
AdditionalAttributeName | SP_ICE_PATH_NO |
ParameterRangeBegin | 1 |
ParameterRangeEnd | 32768 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | The time tag error determined by the calibration team that was added to the time tags to compute the true time of data as provided on the granule. |
AdditionalAttributeName | Timing_Bias |
ParameterUnitsofMeasurement | Microseconds |
ParameterRangeBegin | -1000000 |
ParameterRangeEnd | +1000000 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | date |
AdditionalAttributeDescription | The date that corresponds to the first valid Timing_Bias. There are a maximum of two per granule. |
AdditionalAttributeName | Timing_Bias_Date |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | time |
AdditionalAttributeDescription | The time that corresponds to the first valid Timing_Bias. There are a maximum of two per granule. |
AdditionalAttributeName | Timing_Bias_Time |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | float |
AdditionalAttributeDescription | This is the ratio of the true time for a one second oscilator tick to nominal one |
AdditionalAttributeName | Timing_Drift |
ParameterRangeBegin | -1.0 |
ParameterRangeEnd | +1.0 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | date |
AdditionalAttributeDescription | The date that corresponds to the first valid Timing_Drift. There are a maximum of two per granule. |
AdditionalAttributeName | Timing_Drift_Date |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | time |
AdditionalAttributeDescription | The time that corresponds to the first valid Timing_Drift. There are a maximum of two per granule. |
AdditionalAttributeName | Timing_Drift_Time |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | int |
AdditionalAttributeDescription | The unique number assigned for each repeat ground track (one orbit) of the reference orbit. |
AdditionalAttributeName | Track |
ParameterUnitsofMeasurement | counts |
ParameterRangeBegin | 0 |
ParameterRangeEnd | 3000 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | varchar |
AdditionalAttributeDescription | Universally unique identifier for this data product's files |
AdditionalAttributeName | identifier_file_uuid |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | varchar |
AdditionalAttributeDescription | Digital object identifier that uniquely identifies this data product |
AdditionalAttributeName | identifier_product_doi |
Attribute | Example Value |
---|---|
ParameterValue | 10.5067/ICESAT/GLAS/DATA205 |
Attribute | Example Value |
---|---|
AdditionalAttributeDatatype | varchar |
AdditionalAttributeDescription | URL of the digital object identifier resolving authority |
AdditionalAttributeName | identifier_product_doi_authority |
Attribute | Example Value |
---|---|
ParameterValue | http://dx.doi.org |
Attribute | Example Value |
---|---|
PrimaryCSDT | n-Dim Array of Records |
IndirectReference | tracks/orbits |
Implementation | HDF |
CSDTComments | Two dimensional arrays with six segments per track (orbit).The segments are: (1)equator to +50 lat,(2)+50 lat across pole to +50 lat,(3)+50 deg lat to equator,(4)equator to -50 lat,(5)-50 deg lat across pole to -50 deg lat,(6)-50 deg lat to equator. |
Attribute | Example Value |
---|---|
GLAH06 | CollectionAssociationContainer |
GLAH05 | CollectionAssociationContainer |
GLAH01 | CollectionAssociationContainer |
GLA00 | CollectionAssociationContainer |
GLAH13 | CollectionAssociationContainer |
GLAH14 | CollectionAssociationContainer |
GLAH15 | CollectionAssociationContainer |
Attribute | Example Value |
---|---|
CollectionType | Science Associated |
CollectionUse | The initial collection of GLAS instrument data downlinked from the spacecraft |
ShortName | GLA00 |
VersionID | 1 |
Attribute | Example Value |
---|---|
CollectionType | Science Associated |
CollectionUse | Level 1A file containing altimeter height, waveform data, and other data required to produce the Level 1B waveform products |
ShortName | GLAH01 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Input |
CollectionUse | Level 1B file containing: the range, corrections to the range from the waveform retracking algorithms, the surface roughness estimate, and the reflectance |
ShortName | GLAH05 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Input |
CollectionUse | Level 1B file containing: elevations, elevation corrections, surface roughness, reflectance, and associated timing and data quality information |
ShortName | GLAH06 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Science Associated |
CollectionUse | Level 2 file containing: Sea Ice Elevation, Reflectancce, and Roughness, Ice Berg Elevations and Roughness. The product parameters are the result of product-specialized waveform fitting. |
ShortName | GLAH13 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Science Associated |
CollectionUse | Level 2 file containing: corrected surface elevations above the reference ellipsoid, surface roughness, reflectance, and the corrections that were used. The product parameters are the result of product-specialized waveform fitting. |
ShortName | GLAH14 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Science Associated |
CollectionUse | Level 2 file containing: corrected Ocean elevations above the reference ellipsoid, surface roughness, reflectance, and the corrections that were used. The product parameters are the result of product-specialized waveform fitting. |
ShortName | GLAH15 |
VersionID | 33 |
Attribute | Example Value |
---|---|
Data_Originator | ContactOrganizationContainer |
Archive | ContactOrganizationContainer |
Attribute | Example Value |
---|---|
Role | Archive |
HoursofService | M-F, 8:00am to 5:00pm, Mountain Time |
ContactInstructions | For inquiries, contact NSIDC User Services. Primary first level contact. |
ContactOrganizationName | NSIDC User Services |
StreetAddress | CIRES/NSIDC University of Colorado Campus, Box 449 |
City | Boulder |
StateProvince | Colorado |
PostalCode | 80309-0449 |
Country | USA |
TelephoneNumber | 303-492-2468 |
TelephoneNumberType | Facsimile |
ElectronicMailAddress | nsidc@nsidc.org |
Attribute | Example Value |
---|---|
Role | Data Originator |
HoursofService | M-F, 8:00am to 4:30pm Eastern Time |
ContactInstructions | Contact by e-mail first |
ContactOrganizationName | ICESat Science Investigator-led Processing System (I-SIPS) |
StreetAddress | Building 33, NASA Goddard Space Flight Center |
City | Greenbelt |
StateProvince | Maryland |
PostalCode | 20771 |
Country | USA |
TelephoneNumber | 757-864-1238 |
TelephoneNumberType | Voice |
ElectronicMailAddress | David.W.Hancock@nasa.gov |
Attribute | Example Value |
---|---|
Hancock | ContactPersonContainer |
Schutz | ContactPersonContainer |
Zwally | ContactPersonContainer |
DiMarzio | ContactPersonContainer |
Attribute | Example Value |
---|---|
Role | Producer |
HoursofService | M-F, 8:00am to 4:30pm Eastern Time |
ContactInstructions | None |
ContactJobPosition | Deputy Science Software Development Manager |
ContactFirstName | John |
ContactMiddleName | P |
ContactLastName | DiMarzio |
StreetAddress | Building 33, Rm. B-209D, NASA/GSFC |
City | Greenbelt |
StateProvince | Maryland |
PostalCode | 20771 |
Country | USA |
TelephoneNumber | 301-614-5893 |
TelephoneNumberType | Voice |
ElectronicMailAddress | John.P.Dimarzio.1@nasa.gov |
Attribute | Example Value |
---|---|
Role | Data Originator |
HoursofService | M-F, 8:00am to 4:30pm. Eastern Time. |
ContactInstructions | None |
ContactJobPosition | Science Software Development Manager. |
ContactFirstName | David |
ContactMiddleName | W. |
ContactLastName | Hancock |
StreetAddress | Building N-159, NASA/GSFC Wallops Flight Facility. |
City | Wallops Island |
StateProvince | Virginia |
PostalCode | 23337 |
Country | USA |
TelephoneNumber | 757-824-1238 |
TelephoneNumberType | Voice |
ElectronicMailAddress | David.W.Hancock@nasa.gov |
Attribute | Example Value |
---|---|
Role | Investigator |
HoursofService | M-F, 8:00am to 4:30pm Central Time |
ContactInstructions | None |
ContactJobPosition | GLAS Science Team Leader |
ContactFirstName | Bob |
ContactMiddleName | E |
ContactLastName | Schutz |
StreetAddress | 3925 W. Braker Lane, Center for Space Research |
City | Austin |
StateProvince | Texas |
PostalCode | 78759-5321 |
Country | USA |
TelephoneNumber | 512-471-4267 |
TelephoneNumberType | Voice |
ElectronicMailAddress | schutz@utcsr.ae.utexas.edu |
Attribute | Example Value |
---|---|
Role | Producer |
HoursofService | M-F, 8:00am to 4:30pm Eastern Time |
ContactInstructions | None. |
ContactJobPosition | ICESat Project Scientist |
ContactFirstName | Jay |
ContactLastName | Zwally |
StreetAddress | Building 33, Rm A-217 |
City | Greenbelt |
StateProvince | Maryland |
PostalCode | 20771 |
Country | USA |
TelephoneNumber | 301-614-5643 |
TelephoneNumberType | Voice |
ElectronicMailAddress | Jay.Zwally@nasa.gov |
Attribute | Example Value |
---|---|
Hydrosphere | DisciplineTopicParametersContainer |
Land_Surface | DisciplineTopicParametersContainer |
Cryosphere | DisciplineTopicParametersContainer |
Oceans | DisciplineTopicParametersContainer |
Attribute | Example Value |
---|---|
ECSDisciplineKeyword | Earth Science |
ECSTopicKeyword | Cryosphere |
ECSTermKeyword | Sea Ice |
ECSVariableKeyword | Reflectance |
Attribute | Example Value |
---|---|
ECSParameterKeyword | Laser Reflectance |
Attribute | Example Value |
---|---|
ECSDisciplineKeyword | Earth Science |
ECSTopicKeyword | Hydrosphere |
ECSTermKeyword | Glaciers/Ice Sheets |
ECSVariableKeyword | Glacier Elevation/Ice Sheet Elevation |
Attribute | Example Value |
---|---|
ECSDisciplineKeyword | Earth Science |
ECSTopicKeyword | Land Surface |
ECSTermKeyword | Topography |
ECSVariableKeyword | Terrain Elevation |
Attribute | Example Value |
---|---|
ECSDisciplineKeyword | Earth Science |
ECSTopicKeyword | Oceans |
ECSTermKeyword | Sea Ice |
ECSVariableKeyword | Reflectance |
Attribute | Example Value |
---|---|
ECSParameterKeyword | Laser Reflectance |
Attribute | Example Value |
---|---|
RevisionDate | 2012-06-25 |
SuggestedUsage | GLAH12 contains ice sheet elevation and elevation distribution calculated from algorithms fine-tuned for ice sheet returns for use by researchers. Parameters are at the full 40Hz resolution that fall within the ICESat ice sheet mask. Each GLAH12 file was created from an equivalent GLA12 binary file. The data used to create the GLAH12 values are contained in the equivalent GLAHxx files for the GLAxx files. See the provenance metadata for the creation of the GLA12. |
ProcessingCenter | GSFC I-SIPS |
ArchiveCenter | NSIDC |
VersionDescription | Initial Version |
DatasetDisclaimerPointer | http://nsidc.org/data/icesat/disclaimer.html |
ECSCollectionGuidePointer | http://nsidc.org/data/docs/daac/glas_icesat_l1_l2_global_altimetry.gd.html |
ECSCollectionGuidePointerComment | Guide Document for this product at NSIDC |
MiscellaneousInformationPointer | http://nsidc.org/daac/icesat/index.html |
MiscellaneousInformationPointerComment | GLAS Product page at NSIDC |
Attribute | Example Value |
---|---|
ICESat | PlatformContainer |
Attribute | Example Value |
---|---|
PlatformShortName | ICESat |
PlatformLongName | Ice, Cloud, and Land Elevation Satellite |
PlatformType | Spacecraft |
Attribute | Example Value |
---|---|
GLAS | InstrumentContainer |
GPS | InstrumentContainer |
Attribute | Example Value |
---|---|
InstrumentShortName | GLAS |
InstrumentLongName | Geoscience Laser Altimeter System |
InstrumentTechnique | Laser Altimetry and Light Detection and Radar |
NumberofSensors | 3 |
Attribute | Example Value |
---|---|
SwathWidth | InstrumentCharacteristicContainer |
Attribute | Example Value |
---|---|
InstrumentCharacteristicName | SwathWidth |
InstrumentCharacteristicDescription | The width of the sensor scan as the satellite moves along the ground track. |
InstrumentCharacteristicDataType | int |
InstrumentCharacteristicUnit | kilometers |
InstrumentCharacteristicValue | 2 |
Attribute | Example Value |
---|---|
LA | SensorContainer |
PC | SensorContainer |
CD | SensorContainer |
Attribute | Example Value |
---|---|
SensorShortName | CD |
SensorLongName | Cloud LIDAR |
SensorTechnique | Measure of 1064nm return energy in 75m bins from 20km to surface |
Attribute | Example Value |
---|---|
wavelength | SensorCharacteristicContainer |
Attribute | Example Value |
---|---|
SensorCharacteristicName | wavelength |
SensorCharacteristicDescription | detector |
SensorCharacteristicDataType | varchar |
SensorCharacteristicUnit | nanometer |
SensorCharacteristicValue | 1064 nm |
Attribute | Example Value |
---|---|
SensorShortName | LA |
SensorLongName | Laser Altimeter |
SensorTechnique | Exact Measurement of Time between Transmit Pulse and receive ground return |
Attribute | Example Value |
---|---|
wavelength | SensorCharacteristicContainer |
waveform | SensorCharacteristicContainer |
Attribute | Example Value |
---|---|
SensorCharacteristicName | waveform |
SensorCharacteristicDescription | digitizer |
SensorCharacteristicDataType | varchar |
SensorCharacteristicUnit | counts |
SensorCharacteristicValue | 0-255 |
Attribute | Example Value |
---|---|
SensorCharacteristicName | wavelength |
SensorCharacteristicDescription | transmission |
SensorCharacteristicDataType | varchar |
SensorCharacteristicUnit | nanometer |
SensorCharacteristicValue | 1064 nm |
Attribute | Example Value |
---|---|
SensorShortName | PC |
SensorLongName | Photon Counter for the 532 nm Aerosol Returns |
SensorTechnique | Counting of 532nm photon return in 75m bins 40km to surface |
Attribute | Example Value |
---|---|
wavelength | SensorCharacteristicContainer |
Attribute | Example Value |
---|---|
SensorCharacteristicName | wavelength |
SensorCharacteristicDescription | detector |
SensorCharacteristicDataType | varchar |
SensorCharacteristicUnit | nanometer |
SensorCharacteristicValue | 532nm |
Attribute | Example Value |
---|---|
InstrumentShortName | GPS |
InstrumentLongName | Global Positioning System Receiver |
InstrumentTechnique | Radionavigation |
NumberofSensors | 1 |
Attribute | Example Value |
---|---|
GPS_Receiver | SensorContainer |
Attribute | Example Value |
---|---|
SensorShortName | GPS Receiver |
SensorLongName | Dual frequency GPS receiver |
SensorTechnique | Pseudorange and carrier phase |
Attribute | Example Value |
---|---|
OrbitInclination | PlatformCharacteristicContainer |
OrbitalPeriod | PlatformCharacteristicContainer |
Attribute | Example Value |
---|---|
PlatformCharacteristicName | OrbitInclination |
PlatformCharacteristicDescription | Angle between the orbit plane and the Earth's equatorial plane |
PlatformCharacteristicDataType | float |
PlatformCharacteristicUnit | Degrees |
PlatformCharacteristicValue | 94.0 |
Attribute | Example Value |
---|---|
PlatformCharacteristicName | OrbitalPeriod |
PlatformCharacteristicDescription | Orbital period in decimal minutes. |
PlatformCharacteristicDataType | float |
PlatformCharacteristicUnit | Minutes |
PlatformCharacteristicValue | 96.7 |
Attribute | Example Value |
---|---|
ProcessingLevelDescription | Geophysical Quantities at the sensor resolution or geolocated |
ProcessingLevelID | 2 |
Attribute | Example Value |
---|---|
ScienceReviewDate | 2001-03-04 |
ScienceReviewStatus | QA at DAACs |
FutureReviewDate | 2001-09-04 |
Attribute | Example Value |
---|---|
SpatialCoverageType | Horizontal |
WestBoundingCoordinate | -180.0 |
NorthBoundingCoordinate | 90.0 |
EastBoundingCoordinate | 180.0 |
SouthBoundingCoordinate | -90.0 |
Attribute | Example Value |
---|---|
StorageMedium | Online |
Attribute | Example Value |
---|---|
TimeType | UTC |
DateType | J2000 |
TemporalRangeType | Continuous Range |
PrecisionofSeconds | 2 |
EndsatPresentFlag | Y |
RangeBeginningDate | 2003-01-13 |
RangeBeginningTime | 00:00:00 |
RangeEndingDate | 2010-01-13 |
RangeEndingTime | 00:00:00 |
Attribute | Example Value |
---|---|
PGEVersion | Version 1.2 |
ShortName | GLAH12 |
VersionID | 33 |
RangeBeginningTime | 02:51:46 |
RangeEndingTime | 01:24:53 |
RangeBeginningDate | 2008-03-03 |
RangeEndingDate | 2008-03-04 |
Attribute | Example Value |
---|---|
ReprocessingPlanned | no further update anticipated |
ReprocessingActual | reprocessed |
LocalGranuleID | GLAH12_633_2123_002_0141_0_01_0001.H5 |
ProductionDateTime | 2013-01-16T18:58:01 |
LocalVersionID | 33 |
Attribute | Example Value |
---|---|
InputPointer | gla12_test.ctl, tai-utc.dat, GLA12_633_2123_002_0141_0_01_0001.DAT, DsESDTGlGLAH12.033.desc |
Attribute | Example Value |
---|---|
ParameterName | Surface_Elevation, Surface_Reflectance |
Attribute | Example Value |
---|---|
OrbitNumber | 27949, 27950, 27951, 27952, 27953, 27954, 27955, 27956, 27957, 27958, 27959, 27960, 27961, 27962, 27963 |
StartOrbitNumber | 27949 |
StopOrbitNumber | 27963 |
EquatorCrossingLongitude | -147.35388, -171.54936, 164.25522, 140.06049, 115.865814, 91.669395, 67.47331, 43.27821, 19.08381, -5.1098022, -29.304016, -53.499268, -77.69345, -101.887634, -126.08266 |
EquatorCrossingTime | 02:38:23, 04:15:02, 05:51:41, 07:28:20, 09:04:58, 10:41:37, 12:18:16, 13:54:55, 15:31:36, 17:08:15, 18:44:54, 20:21:33, 21:58:12, 23:34:51, 01:11:29 |
EquatorCrossingDate | 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-03, 2008-03-04 |
Attribute | Example Value |
---|---|
PercentGroundHit | 0 |
OrbitQuality | 6 |
Cycle | 2 |
Track | 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155 |
Instrument_State | 373340 |
Timing_Bias | 0 |
ReferenceOrbit | 1 |
SP_ICE_PATH_NO | 3163, 3164, 3165, 3166, 3167, 3168, 3169, 3170, 3171, 3172, 3173, 3174, 3175, 3176, 3177 |
SP_ICE_GLAS_StartBlock | NOT SET |
SP_ICE_GLAS_EndBlock | NOT SET |
Instance | 23 |
Range_Bias | 0 |
Instrument_State_Date | 2008-02-13 |
Instrument_State_Time | 22:27:25 |
Range_Bias_Date | 2008-02-13 |
Range_Bias_Time | 22:27:27 |
Timing_Bias_Date | 2008-02-13 |
Timing_Bias_Time | 22:27:27 |
identifier_product_doi | 10.5067/ICESAT/GLAS/DATA205 |
identifier_file_uuid | 599740C3-F062-4F49-A756-8A0DA37BC95B |
identifier_product_doi_authority | http://dx.doi.org |
Attribute | Example Value |
---|---|
ProcessDateTime | 2011-09-17T02:59:51 |
Attribute | Example Value |
---|---|
Name | glas_alt |
Type | 2 |
Version | 6.0.1 |
Description | This process is an instantiation of the GLAS Science Algorithm Software (GSAS) 2 ATBDs. |
Attribute | Example Value |
---|---|
Name | GLA05_633_2123_002_0141_1_01_0001.DAT, GLA05_633_2123_002_0141_2_01_0001.DAT, GLA05_633_2123_002_0141_3_01_0001.DAT, GLA05_633_2123_002_0141_4_01_0001.DAT, GLA05_633_2123_002_0142_1_01_0001.DAT, GLA05_633_2123_002_0142_2_01_0001.DAT, GLA05_633_2123_002_0142_3_01_0001.DAT, GLA05_633_2123_002_0142_4_01_0001.DAT, GLA05_633_2123_002_0143_1_01_0001.DAT, GLA05_633_2123_002_0143_2_01_0001.DAT, GLA05_633_2123_002_0143_3_01_0001.DAT, GLA05_633_2123_002_0143_4_01_0001.DAT, GLA05_633_2123_002_0144_1_01_0001.DAT, GLA05_633_2123_002_0144_2_01_0001.DAT, GLA05_633_2123_002_0144_3_01_0001.DAT, GLA05_633_2123_002_0144_4_01_0001.DAT, GLA05_633_2123_002_0145_1_01_0001.DAT, GLA05_633_2123_002_0145_2_01_0001.DAT, GLA05_633_2123_002_0145_3_01_0001.DAT, GLA05_633_2123_002_0145_4_01_0001.DAT, GLA05_633_2123_002_0146_1_01_0001.DAT, GLA05_633_2123_002_0146_2_01_0001.DAT, GLA05_633_2123_002_0146_3_01_0001.DAT, GLA05_633_2123_002_0146_4_01_0001.DAT, GLA05_633_2123_002_0147_1_01_0001.DAT, GLA05_633_2123_002_0147_2_01_0001.DAT, GLA05_633_2123_002_0147_3_01_0001.DAT, GLA05_633_2123_002_0147_4_01_0001.DAT, GLA05_633_2123_002_0148_1_01_0001.DAT, GLA05_633_2123_002_0148_2_01_0001.DAT, GLA05_633_2123_002_0148_3_01_0001.DAT, GLA05_633_2123_002_0148_4_01_0001.DAT, GLA05_633_2123_002_0149_1_01_0001.DAT, GLA05_633_2123_002_0149_2_01_0001.DAT, GLA05_633_2123_002_0149_3_01_0001.DAT, GLA05_633_2123_002_0149_4_01_0001.DAT, GLA05_633_2123_002_0150_1_01_0001.DAT, GLA05_633_2123_002_0150_2_01_0001.DAT, GLA05_633_2123_002_0150_3_01_0001.DAT, GLA05_633_2123_002_0150_4_01_0001.DAT, GLA05_633_2123_002_0151_1_01_0001.DAT, GLA05_633_2123_002_0151_2_01_0001.DAT, GLA05_633_2123_002_0151_3_01_0001.DAT, GLA05_633_2123_002_0151_4_01_0001.DAT, GLA05_633_2123_002_0152_1_01_0001.DAT, GLA05_633_2123_002_0152_2_01_0001.DAT, GLA05_633_2123_002_0152_3_01_0001.DAT, GLA05_633_2123_002_0152_4_01_0001.DAT, GLA05_633_2123_002_0153_1_01_0001.DAT, GLA05_633_2123_002_0153_2_01_0001.DAT, GLA05_633_2123_002_0153_3_01_0001.DAT, GLA05_633_2123_002_0153_4_01_0001.DAT, GLA05_633_2123_002_0154_1_01_0001.DAT, GLA05_633_2123_002_0154_2_01_0001.DAT, GLA05_633_2123_002_0154_3_01_0001.DAT, GLA05_633_2123_002_0154_4_01_0001.DAT, GLA09_633_2123_002_0141_0_01_0001.DAT, GLA11_633_2123_002_0141_0_01_0001.DAT, ANC01_006_20080302_180000_01_0000.DAT, ANC01_006_20080303_000000_01_0000.DAT, ANC01_006_20080303_060000_01_0000.DAT, ANC01_006_20080303_120000_01_0000.DAT, ANC01_006_20080303_180000_01_0000.DAT, ANC01_006_20080304_000000_01_0000.DAT, ANC01_006_20080302_180000_01_0002.DAT, ANC01_006_20080303_000000_01_0002.DAT, ANC01_006_20080303_060000_01_0002.DAT, ANC01_006_20080303_120000_01_0002.DAT, ANC01_006_20080303_180000_01_0002.DAT, ANC01_006_20080304_000000_01_0002.DAT, ANC01_006_20080302_180000_01_0003.DAT, ANC01_006_20080303_000000_01_0003.DAT, ANC01_006_20080303_060000_01_0003.DAT, ANC01_006_20080303_120000_01_0003.DAT, ANC01_006_20080303_180000_01_0003.DAT, ANC01_006_20080304_000000_01_0003.DAT, ANC01_006_20080302_180000_01_0004.DAT, ANC01_006_20080303_000000_01_0004.DAT, ANC01_006_20080303_060000_01_0004.DAT, ANC01_006_20080303_120000_01_0004.DAT, ANC01_006_20080303_180000_01_0004.DAT, ANC01_006_20080304_000000_01_0004.DAT, ANC01_006_20080302_180000_01_0001.DAT, ANC01_006_20080303_000000_01_0001.DAT, ANC01_006_20080303_060000_01_0001.DAT, ANC01_006_20080303_120000_01_0001.DAT, ANC01_006_20080303_180000_01_0001.DAT, ANC01_006_20080304_000000_01_0001.DAT, ANC01_006_20080302_180000_01_0005.DAT, ANC01_006_20080303_000000_01_0005.DAT, ANC01_006_20080303_060000_01_0005.DAT, ANC01_006_20080303_120000_01_0005.DAT, ANC01_006_20080303_180000_01_0005.DAT, ANC01_006_20080304_000000_01_0005.DAT, ANC01_006_20080302_180000_01_0006.DAT, ANC01_006_20080303_000000_01_0006.DAT, ANC01_006_20080303_060000_01_0006.DAT, ANC01_006_20080303_120000_01_0006.DAT, ANC01_006_20080303_180000_01_0006.DAT, ANC01_006_20080304_000000_01_0006.DAT, ANC01_006_20080302_180000_01_0007.DAT, ANC01_006_20080303_000000_01_0007.DAT, ANC01_006_20080303_060000_01_0007.DAT, ANC01_006_20080303_120000_01_0007.DAT, ANC01_006_20080303_180000_01_0007.DAT, |
Type | GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA05, GLA09, GLA11, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC01, ANC04, ANC04, anc07, anc07, anc07, anc07, anc07, anc07, anc07, ANC08, ANC08, ANC09, ANC09, anc12, anc12, anc13, anc16, anc17, anc25, anc27, anc27, ANC33, anc41, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc51, anc52, anc52, anc54, anc54, anc54, anc54, anc54, anc54, anc55, ANC56, ANC57, anc58, anc58, anc58, anc58, anc58, anc58, anc58, anc58, anc58, anc58, anc58, anc58 |
Version | 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 633, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 006, 007, 007, 033, 033, 033, 033, 033, 033, 033, 015, 015, 076, 076, 004, 004, 006, 004, 004, 005, 001, 001, 001, 009, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 007, 007, 002, 002, 002, 002, 002, 002, 001, 001, 001, 002, 002, 002, 002, 002, 002, 002, 002, 002, 002, 002, 002 |
Attribute | Example Value |
---|---|
Name | GLA12_633_2123_002_0141_0_01_0001.DAT |
Type | GLA12 |
Version | 633 |
Attribute | Example Value |
---|---|
ProcessDateTime | 2013-01-16T18:58:01.000000Z |
Attribute | Example Value |
---|---|
Name | GLA12_h5_convert |
Type | Data_Reformat |
Version | Version 1.2 (January 2013) |
Description | GLA12 Conversion PGE |
Attribute | Example Value |
---|---|
Name | ./gla12_test.ctl, ../data/tai-utc.dat, ./GLA12_633_2123_002_0141_0_01_0001.DAT, ./DsESDTGlGLAH12.033.desc |
Type | IN_CNTL, IN_ANC_TAIUTC, IN_GLA12, IN_ESDT |
Version | 0, 0, 1, 1 |
Attribute | Example Value |
---|---|
Name | ./GLAH12_633_2123_002_0141_0_01_0001.H5 |
Type | OUT_GLAH12 |
Version | 1 |
UUID | 599740C3-F062-4F49-A756-8A0DA37BC95B |
DOI | 10.5067/ICESAT/GLAS/DATA205 |