Attribute | Example Value |
---|---|
featureType | timeSeries |
ShortName | GLAH09 |
title | GLAS/ICESat L2 Global Cloud Heights for Multi-layer Clouds (HDF5) |
comment | The level 2 cloud layer height data with top and bottom heights, and ground heights are provided at a minimum of once per 4 seconds. Data granules will contain approximately 23 hours (14 orbits) of data. |
summary | GLAH09 contains the cloud layer heights for researchers. Cloud layer height data consist of top and bottom heights for up to 10 layers below 20 km at 0.25 hz and 5 hz (40hz for below 4 km). Ground heights are provided at each resolution. Each GLAH09 file was created from an equivalent GLA09 binary file. The data used to create the GLAH09 values are contained in the equivalent GLAHxx files for the GLAxx files. See the provenance metadata for the creation of the GLA09. |
license | http://nsidc.org/data/icesat/disclaimer.html |
references | http://nsidc.org/data/docs/daac/glas_icesat_l1_l2_global_atmosphere.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 | 2013-02-08T11:58:44 |
spatial_coverage_type | Horizontal |
history | 2011-06-20T15:27:20 glas_atm 6.0.1 GLA09_633_2103_002_0407_0_01_0001.DAT, 2013-02-08T11:58:44.000000Z GLA09_h5_convert Version 1.1 (February 2013) out/GLAH09_633_2103_002_0407_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 > Atmosphere > Clouds > Cloud Height > Cloud Layer Heights, Earth Science > Atmosphere > Clouds > Cloud Vertical Distribution > Cloud Layer Heights |
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 | 2003-11-18T01:51:38 |
time_coverage_end | 2003-11-19T00:24:45 |
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/DATA202 |
identifier_product_type | GLAH09 |
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_4s | DOUBLE (UNLIMITED) | Transmit Time of First Shot in frame in J2000 (time) | seconds | The transmit time of the first shot in the 4 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_Cloud_Layer_10 | INTEGER (UNLIMITED) | Cloud Layer Index (NOT_SET) | NOT_SET | This array contains the cloud layer index, up to 10 | 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_4s | ||||
shot_time_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Shot time;0=shot time is transmit time;1=shot time is ground bounce time
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
gps_time_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | GPS time;0=no delta gps time correction applied to shot time;1=delta gps time correction applied to shot time
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
pl_timing_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Post-launch timing;0=no post-launch timing bias applied;1=post-launch timing bias applied - see header for value
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
ddelay_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Digitizer turn-on delay;0=digitizer turn-on delay accounted for in shot time - see header;1=digitizer turn-on delay not accounted for in shot time
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
peaktp_flg | INTEGER_1 (UNLIMITED) | time correction flag (NOT_SET) | NOT_SET | Peak of transmit pulse;0=time to peak of transmit pulse accounted for in shot time;1=time to peak of transmit pulse not accounted for in shot time
| Rel 33 GLAS Binary Data | DS_UTCTime_4s |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_lat | DOUBLE (UNLIMITED) | Profile Location, Latitude (at each time) (latitude) | degrees_north | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 0.25 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_4s |
d_lon | DOUBLE (UNLIMITED) | Profile Location, Longitude(at each time) (longitude) | degrees_east | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 0.25 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_4s |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
i_AttFlg3 | INTEGER_1 (UNLIMITED) | Attitude Flag 3 (NOT_SET) | NOT_SET | Attitude Flag 3, 0=PAD used for geolocation, 1=PAD not used for geolocation.
| Rel 33 GLAS Binary Data | DS_UTCTime_4s |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
r_LRcld_bot | REAL (UNLIMITED, 10) | Low Resolution Cloud Bottom at 532 nm (NOT_SET) | meters | Low resolution height above the reference ellipsoid of the bottom of a cirrus, thin, or dense cloud layer in the atmosphere. There can be up to 10 cloud layers in an atmospheric profile. The low resolution data occurs at the rate of once per 4 seconds. | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRcld_top | REAL (UNLIMITED, 10) | Low Resolution Cloud Top at 532 nm (NOT_SET) | meters | Low resolution height above the reference ellipsoid of the top of a cirrus, thin, or dense cloud layer in the atmosphere. There can be up to 10 cloud layers in an atmospheric profile. The low resolution data occurs at the rate of once per 4 seconds. | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRcld_grd | REAL (UNLIMITED) | Low Resolution Ground Detection at 532 nm (NOT_SET) | meters | The height from the reference ellipsoid of the ground as detected by the low resolution cloud processing algorithms. A value of -127 indicates that the ground was searched for, but not detected. | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRg_cldbot_pres | REAL (UNLIMITED, 10) | Low Resolution 532 nm Cloud Bottom Pressure (NOT_SET) | hPa | Low Resolution 532 nm Cloud Bottom Pressure | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRg_cldbot_relh | REAL (UNLIMITED, 10) | Low Resolution 532 nm Cloud Bottom Relative Humidity (NOT_SET) | percent | Low Resolution 532 nm Cloud Bottom Relative Humidity | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRg_cldbot_temp | REAL (UNLIMITED, 10) | Low Resolution 532 nm Cloud Bottom Temperature (NOT_SET) | degree Celsius | Low Resolution 532 nm Cloud Bottom Temperature | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRg_cldtop_pres | REAL (UNLIMITED, 10) | Low Resolution 532 nm Cloud Top Pressure (NOT_SET) | hPa | Low Resolution 532 nm Cloud Top Pressure | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRg_cldtop_relh | REAL (UNLIMITED, 10) | Low Resolution 532 nm Cloud Top Relative Humidity (NOT_SET) | percent | Low Resolution 532 nm Cloud Top Relative Humidity | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRg_cldtop_temp | REAL (UNLIMITED, 10) | Low Resolution 532 nm Cloud Top Temperature (NOT_SET) | degree Celsius | Low Resolution 532 nm Cloud Top Temperature | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cld_bot | REAL (UNLIMITED, 10) | Elevation of Bottom of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | meters | Elevation of Bottom of Cloud Layers Detected in 1064 nm at Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cld_top | REAL (UNLIMITED, 10) | Elevation of Top of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | meters | Elevation of top of cloud layers detected in 1064 nm at low resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cldbot_pres | REAL (UNLIMITED, 10) | Pressure of Bottom of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | hPa | Pressure of Bottom of Cloud Layers Detected in 1064 nm at Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cldbot_relh | REAL (UNLIMITED, 10) | Relative Humidity of Bottom of Cloud Layers Detected in 1064 nm Low Resolution (NOT_SET) | percent | Relative Humidity of Bottom of Cloud Layers Detected in 1064 nm Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cldbot_temp | REAL (UNLIMITED, 10) | Temperature of Bottom of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | degree Celsius | Temperature of Bottom of Cloud Layers Detected in 1064 nm at Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cldtop_pres | REAL (UNLIMITED, 10) | Pressure of Top of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | hPa | Pressure of Top of Cloud Layers Detected in 1064 nm at Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cldtop_relh | REAL (UNLIMITED, 10) | Relative Humidity of Top of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | percent | Relative Humidity of Top of Cloud Layers Detected in 1064 nm at Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
r_LRir_cldtop_temp | REAL (UNLIMITED, 10) | Temperature of Top of Cloud Layers Detected in 1064 nm at Low Resolution (NOT_SET) | degree Celsius | Temperature of Top of Cloud Layers Detected in 1064 nm at Low Resolution data rate (1 per 4 sec). | Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
i_LRC_af | INTEGER_1 (UNLIMITED) | Low Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | availability flag: Tells how many cloud layers were found at this resolution from the 532 nm channel. value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for, but not detected
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
i_LRC_qf | INTEGER_1 (UNLIMITED, 10) | Low Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | qf=quality flag: value 15 = cloud layers were not searched for - either bad data or cloud layers were not found at a coarser resolution; value 1 = low chance of being a cloud; value 2 = moderate; value 3 = high; value 4 = no doubt -- based upon noise-to-signal and geometric thickness evaluation; Value 14 = height of bottom of lowest detected layer in profile very uncertain because ground signal was not detected.
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
i_LRC_df | INTEGER_1 (UNLIMITED, 10) | Low Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | diurnal flag: This tells whether a given layer would be detected during normal daylight conditions. value 0 = layer would not have been detected in typical daytime background; value 1 = layer would have been detected in daylight
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
i_LRCir_af | INTEGER_1 (UNLIMITED) | Low Resolution 1064 nm Cloud Layer QA Flag (NOT_SET) | NOT_SET | availability flag: It provides the number of cloud layers determined from the 1064 nm data. value 0 = layers searched for but not detected; value 15 = cloud layers not searched for.
| Rel 33 GLAS Binary Data | DS_UTCTime_4s | ||||
i_LRir_QAflag | INTEGER_1 (UNLIMITED, 10) | Low Resolution 1064 nm Cloud Layer QA Flag (NOT_SET) | NOT_SET | quality flag: value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for but not detected; values 1-14 indicate increasing confidence of good cloud retrieval (value 1 = least confidence, value 14 = greatest confidence).
| Rel 33 GLAS Binary Data | DS_UTCTime_4s |
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 | 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 |
DS_Cloud_Layer_10 | INTEGER (UNLIMITED) | Cloud Layer Index (NOT_SET) | NOT_SET | This array contains the cloud layer index, up to 10 | 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_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_lat | DOUBLE (UNLIMITED) | Profile Location, Latitude (latitude) | degrees_north | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 1 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
d_lon | DOUBLE (UNLIMITED) | Profile Location, Longitude (longitude) | degrees_east | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 1 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
r_Total_CloudCov | REAL (UNLIMITED) | Total Cloud Cover (NOT_SET) | percent | Total Cloud Cover | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_PBL_Layer_ht | REAL (UNLIMITED) | PBL Layer Height from Met Data (NOT_SET) | meters | PBL Layer Height from Met Data | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_atm_dem | REAL (UNLIMITED) | DEM value at current location from 1 km x 1 km grid (NOT_SET) | meters | Surface height value for current location from 1 km x 1 km grid | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
r_topo_elev | REAL (UNLIMITED) | Topographic elevation of surface above geoid (NOT_SET) | meters | Topographic elevation of surface above geoid based upon POD, PAD, and geoid | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_Surface_pres | REAL (UNLIMITED) | Surface Pressure (surface_air_pressure) | 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 |
r_Surface_relh | REAL (UNLIMITED) | Surface Relative Humidity (relative_humidity) | 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 |
r_Surface_temp | REAL (UNLIMITED) | Surface Temperature (surface_temperature) | degree Celsius | Atmospheric temperature at Earth's surface level measured in degrees Celsius and derived from the meteorological data files. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_Surface_wdir | REAL (UNLIMITED) | Surface Wind Direction Azimuth from North (NOT_SET) | degrees | Wind direction at Earth's surface level measured in degrees of azimuth from North and derived from the meteorological data files. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_Surface_wind | REAL (UNLIMITED) | Surface Wind Speed (NOT_SET) | meters/second | Wind speed at Earth's surface level measured in km/hour and derived from the meteorological data files. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_Spec_Humid | REAL (UNLIMITED) | Specific Humidity (NOT_SET) | gram/kilogram | Specific humidity 2m above ground. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
r_Temp2mAbvGrnd | REAL (UNLIMITED) | Temperature 2m Above Ground Level (NOT_SET) | degrees Celsius | Temperature 2m Above Ground Level | 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) | Orbit flag (NOT_SET) | NOT_SET | Predicted or precision orbit;0=precision orbit used;1=predicted orbit used;2=on-board orbit used
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_man_flg | INTEGER_1 (UNLIMITED) | Orbit flag (NOT_SET) | NOT_SET | Maneuvers;0=no maneuvers;1=maneuvers occurred during this record; orbit degraded
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_model_flg | INTEGER_1 (UNLIMITED) | Orbit flag (NOT_SET) | NOT_SET | Model problems;0=no model problems;1=model problems; orbit RMS > 5 cm; required accuracy not met
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_att_flg | INTEGER_1 (UNLIMITED) | Orbit flag (NOT_SET) | NOT_SET | Attitude;0=instrument attitude used for orbit;1=modeled attitude used, possible orbit degradation
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_array_flg | INTEGER_1 (UNLIMITED) | Orbit flag (NOT_SET) | NOT_SET | Solar ray orientation;0=solar ray orientation used from measurement;1=modeled solar ray orientation, possible orbit degradation
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
orbit_gps_flg | INTEGER_1 (UNLIMITED) | Orbit flag (NOT_SET) | NOT_SET | GPS;0=no GPS data outage;1=GPS data missing from portion of this record, possible degradation
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_offnadir_flg | INTEGER_1 (UNLIMITED) | Attitude flag (NOT_SET) | NOT_SET | Off-nadir angle; 0=off-nadir angle within limits;1=large off-nadir angle
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_oceansw_flg | INTEGER_1 (UNLIMITED) | Attitude flag (NOT_SET) | NOT_SET | Ocean sweep;0=non-ocean sweep, 1=within time frame of ocean sweep
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_pointing_flg | INTEGER_1 (UNLIMITED) | Attitude flag (NOT_SET) | NOT_SET | Target of opportunity off-pointing;0=not within target of opportunity off-pointing 1=within time of target of opportunity off-pointing
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_steering_flg | INTEGER_1 (UNLIMITED) | Attitude flag (NOT_SET) | NOT_SET | Steering to reference track;0=not within target of opportunity off-pointing 1=within time of target of opportunity off-pointing
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_actual_flg | INTEGER_1 (UNLIMITED) | Attitude flag (NOT_SET) | NOT_SET | 0=i_AttFlg_1 through i_AttFlg_3 have been set based on actual data 1=i_AttFlg_1 through i_AttFlg_3 have not been set - IGNORE these flags
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
att_ist_flg | INTEGER_1 (UNLIMITED) | Attitude flag (NOT_SET) | NOT_SET | IST data;0 = IST data is good 1 = Missing IST for at least a portion of the time of this frame 2 = Noisy IST for at least a portion of the time of this frame 3 = Noisy and missing IST 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 (NOT_SET) | NOT_SET | GYRO data;0 = GYRO data is good 1 = Missing GYRO for at least a portion of the time of this frame 2 = Noisy GYRO for at least a portion of the time of this frame 3 = Noisy and missing GYRO 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 (NOT_SET) | NOT_SET | LRS Data;0 = LRS data good, consists of star, laser and CRS 1 = LRS data good, but no star data for at least a portion of this frame 2 = LRS data good, but no laser data for at least a portion of this frame 3 = LRS data good, but no CRS data for at least a portion of this frame 4 = LRS data good, but only CRS data for at least a portion of this frame 5 = LRS data good, but only laser data for at least a portion of this frame 6 = LRS data good, but only star data for at least a portion of this frame 7 = Missing LRS for at least a portion of the time of this frame
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_LidarQF | INTEGER_1 (UNLIMITED) | Lidar Frame quality flag (NOT_SET) | NOT_SET | Lidar frame quality flag. 0=good data, 1=data unsuitable for L2 processing due to weak 532 laser energy or high background.
| 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;0=no Land;1=Land
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
surf_si_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type;0=no Sea Ice;1=Sea Ice
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
surf_oc_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type;0=no Ocean;1=Ocean
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
surf_is_flg | INTEGER_1 (UNLIMITED) | Region Type (NOT_SET) | NOT_SET | Region type;0=no Ice Sheet;1=Ice Sheet
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_atm_char_conf | INTEGER_1 (UNLIMITED) | Atmosphere Characterization Flag Confidence (NOT_SET) | N/A | 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 | ||||
i_atm_char_flag | INTEGER_1 (UNLIMITED) | Atmosphere Characterization Flag (NOT_SET) | NOT_SET | Flag to characterize cloud and blowing snow state of the atmosphere 0 clear 1 high cloud (> 5 km) low optical depth 2 high cloud (> 5 km), high optical depth 3 mid cloud (>2, <=5 km) low optical depth 4 mid cloud (>2, <=5 km) high optical depth 5 low cloud (> 500 m, <=2 km), low optical depth 6 low cloud (> 500 m, <=2 km), high optical depth 7 blowing snow or fog (< 500 m), low optical depth 8 blowing snow or fog (< 500 m), high optical depth 9 not tested 10 data quality insufficient to assign flag
| Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
r_beam_azimuth | REAL (UNLIMITED) | Azimuth (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_1 |
r_beam_coelev | REAL (UNLIMITED) | Co-elevation (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_1 |
r_pad_angle | REAL (UNLIMITED) | PAD Angle (NOT_SET) | degrees | Attitude angle calculated from PAD and POD. | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
r_SolAng | REAL (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 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
r_MRcld_bot | REAL (UNLIMITED, 10) | Medium Resolution Cloud Bottom at 532 nm (NOT_SET) | meters | Medium resolution height above the reference ellipsoid of the bottom of a cirrus, thin, or dense cloud layer in the atmosphere. There can be up to 10 cloud layers in an atmospheric profile. The medium resolution data occurs at the rate of once per second. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRcld_top | REAL (UNLIMITED, 10) | Medium Resolution Cloud Top at 532 nm (NOT_SET) | meters | Medium resolution height above the reference ellipsoid of the top of a cirrus, thin, or dense cloud layer in the atmosphere. There can be up to 10 cloud layers in an atmospheric profile. The medium resolution data occurs at the rate of once per second. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRg_cldbot_pres | REAL (UNLIMITED, 10) | Medium Resolution 532 nm Cloud Bottom Pressure (NOT_SET) | hPa | Medium Resolution 532 nm Cloud Bottom Pressure | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRg_cldbot_relh | REAL (UNLIMITED, 10) | Medium Resolution 532 nm Cloud Bottom Relative Humidity (NOT_SET) | percent | Medium Resolution 532 nm Cloud Bottom Relative Humidity | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRg_cldbot_temp | REAL (UNLIMITED, 10) | Medium Resolution 532 nm Cloud Bottom Temperature (NOT_SET) | degree Celsius | Medium Resolution 532 nm Cloud Bottom Temperature | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRg_cldtop_pres | REAL (UNLIMITED, 10) | Medium Resolution 532 nm Cloud Top Pressure (NOT_SET) | hPa | Medium Resolution 532 nm Cloud Top Pressure | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRg_cldtop_relh | REAL (UNLIMITED, 10) | Medium Resolution 532 nm Cloud Top Relative Humidity (NOT_SET) | percent | Medium Resolution 532 nm Cloud Top Relative Humidity | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRg_cldtop_temp | REAL (UNLIMITED, 10) | Medium Resolution 532 nm Cloud Top Temperature (NOT_SET) | degree Celsius | Medium Resolution 532 nm Cloud Top Temperature | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cld_bot | REAL (UNLIMITED, 10) | Elevation of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution (NOT_SET) | meters | Elevation of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cld_top | REAL (UNLIMITED, 10) | Elevation of Top of Cloud Layers Detected in 1064 nm at Medium Resolution (NOT_SET) | meters | Elevation of Top of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cldbot_pres | REAL (UNLIMITED, 10) | Pressure of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution (NOT_SET) | hPa | Pressure of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cldbot_relh | REAL (UNLIMITED, 10) | Relative Humidity of Bottom of Cloud Layers Detected in 1064 nm at MR (NOT_SET) | percent | Relative Humidity of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cldbot_temp | REAL (UNLIMITED, 10) | Temperature of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution (NOT_SET) | degree Celsius | Temperature of Bottom of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cldtop_pres | REAL (UNLIMITED, 10) | Pressure of Top of Cloud Layers Detected in 1064 nm at Medium Resolution (NOT_SET) | hPa | Pressure of Top of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cldtop_relh | REAL (UNLIMITED, 10) | Relative Humidity of Top of Cloud Layers in 1064 nm at Medium Resolution (NOT_SET) | percent | Relative Humidity of Top of Cloud Layers in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRir_cldtop_temp | REAL (UNLIMITED, 10) | Temperature of Top of Cloud Layers Detected in 1064 nm at Medium Resolution (NOT_SET) | degree Celsius | Temperature of Top of Cloud Layers Detected in 1064 nm at Medium Resolution data rate. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRcld_grd | REAL (UNLIMITED) | Medium Resolution Ground Detection at 532 nm (NOT_SET) | meters | The height above the reference ellipsoid of the ground as detected by the medium resolution cloud processing algorithms. A value of -127 indicates that the ground was searched for, but not detected. | Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_MRC_af | INTEGER_1 (UNLIMITED) | Medium Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Availability flag: Tells how many cloud layers were found at this resolution. The total number of layers found is the sum of those found using the 532 channel and the 1064 channel (thus, this number will generally be larger than the actual number of layers present). value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for, but not detected
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_MRC_qf | INTEGER_1 (UNLIMITED, 10) | Medium Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Quality flag: value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for but not detected; value 1 = low chance of being a cloud; value 2 = moderate; value 3 = high; value 4 = no doubt
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_MRC_uf | INTEGER_1 (UNLIMITED, 10) | Medium Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Use flag: Tells which channel was used to detect the layer; value 0 = cloud layer was derived from 532 channel data; value 2 = cloud layer was derived from the 1064 channel data
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_MRC_df | INTEGER_1 (UNLIMITED, 10) | Medium Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Diurnal flag: This tells whether a given layer would be detected during normal daylight conditions. value 0 = layer would not have been detected in typical daytime background; value 1 = layer would have been detected in dayligh
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_MRCir_af | INTEGER_1 (UNLIMITED) | Medium Resolution 1064 nm Cloud Layer QA Flag (NOT_SET) | NOT_SET | Availability flag. It provides the number of cloud layers determined from the 1064 nm data. value 0 = layers searched for but not detected; value 15 = cloud layers not searched for.
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
i_MRir_QAflag | INTEGER_1 (UNLIMITED, 10) | Medium Resolution 1064 nm Cloud Layer QA Flag (NOT_SET) | NOT_SET | Quality flag: value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for but not detected; values 1-14 indicate increasing confidence of good cloud retrieval (value 1 = least confidence, value 14 = greatest confidence).
| Rel 33 GLAS Binary Data | DS_UTCTime_1 | ||||
r_MRcld_pct | REAL (UNLIMITED, 10) | Percentage of Saturated Bins in Medium Resolution Cloud Layers at 532 nm (NOT_SET) | NOT_SET | Percentage of saturated bins in medium resolution cloud layers | Rel 33 GLAS Binary Data | DS_UTCTime_1 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
DS_UTCTime_5 | DOUBLE (UNLIMITED) | Transmit Time of First Shot in frame in J2000 (time) | seconds | The transmit time of five shots 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_Cloud_Layer_10 | INTEGER (UNLIMITED) | Cloud Layer Index (NOT_SET) | NOT_SET | This array contains the cloud layer index, up to 10 | 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_5 |
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_5 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
d_lat | DOUBLE (UNLIMITED) | Profile Location, Latitude (at each time) (latitude) | degrees_north | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 5 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_5 |
d_lon | DOUBLE (UNLIMITED) | Profile Location, Longitude(at each time) (longitude) | degrees_east | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 5 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_5 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
r_blow_snow_erd | REAL (UNLIMITED) | Blowing Snow Range Delay (NOT_SET) | millimeters | An estimate of the range delay caused by blowing snow. | Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
r_blow_snow_ht | REAL (UNLIMITED) | Blowing Snow Height (NOT_SET) | meters | Represents the maximum height above the surface of the blowing snow layer. | Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
r_blow_snow_od | REAL (UNLIMITED) | Blowing Snow Optical Depth (NOT_SET) | NOT_SET | An estimate of the optical depth of the blowing snow layer. | Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
i_blow_snow_conf | INTEGER_1 (UNLIMITED) | Blowing Snow Confidence (NOT_SET) | NOT_SET | A number that indicates the degree of confidence that this is indeed blowing snow. Blowing snow confidence ranges from 0 - 15 and has the following meanings: 0: profile tested, but no blowing snow detected 1 - 5: Good blowing snow detection using the 1064 channel. 1 is lowest confidence that layer is blowing snow, 5 is highest confidence. 6: Layer suspected of being low cloud (such as fog), or seemingly too thick to be blowing snow (> 1.0 km thick) as determined from 1064 channel. 7 - 12: Good blowing snow detection using the 532 channel. 7 is lowest confidence that layer is blowing snow, 12 is highest confidence. 13: Layer suspected of being low cloud (such as fog), or seemingly too thick to be blowing snow (> 1.0 km thick) as determined from 532 channel. 14: Wind speed < 5 m/s or ground stroke not detected (the latter case indicating overlying thick cloud) 15: Signal not examined for blowing snow (could be because it is closer to the equator than plus or minus 60 degrees latitude, or not over sea ice or land)
| Rel 33 GLAS Binary Data | DS_UTCTime_5 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
r_HRcld_grd | REAL (UNLIMITED) | High Resolution Ground Detection at 532 nm (NOT_SET) | meters | The height above the reference ellipsoid of the ground as detected by the high resolution cloud processing algorithms. A value of -127 indicates that the ground was searched for, but not detected. | Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
r_HRcld_bot | REAL (UNLIMITED, 10) | High Resolution Cloud Bottom at 532 nm (NOT_SET) | meters | High resolution height above the reference ellipsoid of the bottom of a cirrus, thin, or dense cloud layer below 10KM in the atmosphere. There can be up to 10 cloud layers in an atmospheric profile. The high resolution data occurs at the rate of 5 per second. | Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
r_HRcld_top | REAL (UNLIMITED, 10) | High Resolution Cloud Top at 532 nm (NOT_SET) | meters | High resolution height above the reference ellipsoid of the top of a cirrus, thin, or dense cloud layer below 10 KM in the atmosphere. There can be up to 10 cloud layers in an atmospheric profile. The high resolution data occurs at the rate of 5 per second. | Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
i_HRC_af | INTEGER_1 (UNLIMITED) | High Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | availability flag: Tells how many cloud layers were found (from the 532 channel) at this resolution. value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for, but not detected
| Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
i_HRC_qf | INTEGER_1 (UNLIMITED, 10) | High Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | quality flag: value 15 = cloud layers were not searched for - either bad data or cloud layers were not found at a coarser resolution; value 1 = low chance of being a cloud; value 2 = moderate; value 3 = high; value 4 = no doubt -- based upon noise-to-signal and geometric thickness evaluation; Value 14 = height of bottom of lowest detected layer in profile very uncertain because ground signal was not detected.
| Rel 33 GLAS Binary Data | DS_UTCTime_5 | ||||
i_HRC_df | INTEGER_1 (UNLIMITED, 10) | High Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | diurnal flag: This tells whether a given layer would be detected during normal daylight conditions. value 0 = layer would not have been detected in typical daytime background; value 1 = layer would have been detected in daylight
| Rel 33 GLAS Binary Data | DS_UTCTime_5 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates |
---|---|---|---|---|---|---|
DS_UTCTime_40 | DOUBLE (UNLIMITED) | Transmit Time of First Shot in frame in J2000 (time) | seconds | 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 |
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 |
---|---|---|---|---|---|---|
d_lat | DOUBLE (UNLIMITED) | Profile Location, Latitude (at each time) (latitude) | degrees_north | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 40 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
d_lon | DOUBLE (UNLIMITED) | Profile Location, Longitude(at each time) (longitude) | degrees_east | Profile coordinate in the IERS Terrestrial Reference Frame: east longitude and north latitude, at the 40 hertz rate. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Label | Datatype (Dimensions) | long_name (standard_name) | units | description | source | coordinates | ||||
---|---|---|---|---|---|---|---|---|---|---|
r_FRg_grd_sig | REAL (UNLIMITED) | Full Resolution Ground Return Signal at 532 nm (NOT_SET) | 1/(m-sr) | Ground return signal from the 532 nm backscatter profile at the height that the ground return is detected. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
r_FRir_grd_sig | REAL (UNLIMITED) | Full Resolution Ground Return Signal at 1064 nm (NOT_SET) | 1/(m-sr) | Ground return signal from the 1064 nm backscatter profile at the height that the ground return is detected. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
i_FRir_qaFlag | INTEGER_1 (UNLIMITED) | Full Resolution 1064 Quality Flag (NOT_SET) | NOT_SET | Full Resolution 1064 Quality Flag. Value 0 - 12 = 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. Value 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. Value 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 km. Value 15 = No clouds.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
i_FRC_af | INTEGER_1 (UNLIMITED) | Full Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Availability flag: Tells how many cloud layers were found (from the 532 channel) at this resolution. value 15 = cloud layers were not searched for; value 0 = cloud layers were searched for, but not detected.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
i_FRC_qf | INTEGER_1 (UNLIMITED) | Full Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Quality flag: value 15 = cloud layers were not searched for - either bad data or cloud layers were not found at a coarser resolution; value 1 = low chance of being a cloud; value 2 = moderate; value 3 = high; value 4 = no doubt -- based upon noise-to-signal and geometric thickness evaluation; Value 14 = height of bottom of lowest detected layer in profile very uncertain because ground signal was not detected.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
i_FRC_df | INTEGER_1 (UNLIMITED) | Full Resolution Cloud Layers Flag for 532 nm (NOT_SET) | NOT_SET | Diurnal flag: This tells whether a given layer would be detected during normal daylight conditions. value 0 = layer would not have been detected in typical daytime background; value 1 = layer would have been detected in daylight.
| Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
r_FRcld_bot | REAL (UNLIMITED) | Full Resolution Cloud Bottom at 532 nm (NOT_SET) | meters | The height above the reference ellipsoid to the bottom of the full resolution cloud layer (40 Hz). This resolution cloud search is independent of the lower resolution cloud search results and is done for each 40 Hz shot regardless of whether or not clouds were detected at the lower resolutions. Note that the 40 Hz data is available only below 10 km, and thus clouds existing above that level cannot be detected at the 40 Hz resolution. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
r_FRcld_grd | REAL (UNLIMITED) | Full Resolution Cloud Ground Detection at 532 nm (NOT_SET) | meters | The height above the reference ellipsoid of the ground as detected by the full resolution cloud processing algorithms. A value of -127 indicates that the ground was searched for, but not detected. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
r_FRcld_top | REAL (UNLIMITED) | Full Resolution Cloud Top at 532 nm (NOT_SET) | meters | The height above the reference ellipsoid to the top of the full resolution cloud layer (40 Hz). This resolution cloud search is independent of the lower resolution cloud search results and is done for each 40 Hz shot regardless of whether or not clouds were detected at the lower resolutions. Note that the 40 Hz data is available only below 10 km, and thus clouds existing above that level cannot be detected at the 40 Hz resolution. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
r_FRir_cldtop | REAL (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 for a 4 second record. Also parameter is in GLA06, 12-15. | Rel 33 GLAS Binary Data | DS_UTCTime_40 | ||||
r_FRir_intsig | REAL (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). This parameter is for a 4 second record. This parameter is also in GLA06, 12-15. | Rel 33 GLAS Binary Data | DS_UTCTime_40 |
Attribute | Example Value |
---|---|
glas_osc_rate | 1.000000023 |
glas_osc_rate_date | 2003-10-30 |
glas_osc_rate_time | 00:00:00 |
sc_osc_rate | 0.99999998854809 |
sc_osc_rate_date | 2003-10-30 |
sc_osc_rate_time | 00:00:00 |
internal_time_delay | 0.0000151100 |
internal_time_delay_date | 2003-10-30 |
internal_time_delay_time | 00:00:00 |
internal_range_delay | 9.5560 |
internal_range_delay_date | 2003-10-30 |
internal_range_delay_time | 00:00:00 |
Additional_Attribute | SP_ICE_PATH_NO, SP_ICE_GLAS_StartBlock, SP_ICE_GLAS_EndBlock, ReferenceOrbit, Track, PercentGroundHit, Cycle, Instance |
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=gla09_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 | GLAH09 |
LongName | GLAS/ICESat L2 Global Cloud Heights for Multi-layer Clouds (HDF5) |
CollectionDescription | The level 2 cloud layer height data with top and bottom heights, and ground heights are provided at a minimum of once per 4 seconds. Data granules will contain approximately 23 hours (14 orbits) of data. |
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 |
Track | AdditionalAttributesContainer |
Instrument_State | AdditionalAttributesContainer |
ReferenceOrbit | AdditionalAttributesContainer |
SP_ICE_PATH_NO | AdditionalAttributesContainer |
SP_ICE_GLAS_StartBlock | AdditionalAttributesContainer |
SP_ICE_GLAS_EndBlock | AdditionalAttributesContainer |
Cycle | AdditionalAttributesContainer |
Instance | AdditionalAttributesContainer |
Instrument_State_Date | AdditionalAttributesContainer |
Instrument_State_Time | AdditionalAttributesContainer |
Timing_Bias | AdditionalAttributesContainer |
Timing_Bias_Date | AdditionalAttributesContainer |
Timing_Bias_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 | 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 | 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 | 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/DATA202 |
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 | Granule contains fourteen orbits of data; nominally 24-hour period. |
Attribute | Example Value |
---|---|
GLA00 | CollectionAssociationContainer |
GLAH02 | CollectionAssociationContainer |
GLAH07 | CollectionAssociationContainer |
GLAH08 | CollectionAssociationContainer |
GLAH10 | CollectionAssociationContainer |
GLAH11 | 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 atmospheric data product file containing: normalized lidar signals. |
ShortName | GLAH02 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Input |
CollectionUse | Level 1B file containing: calibrated backscatter profiles. |
ShortName | GLAH07 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Dependent |
CollectionUse | Level 2 file containing: planetary boundary layer heights and aerosol layer top and bottom. |
ShortName | GLAH08 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Dependent |
CollectionUse | Level 2 file containing: cloud- and aerosol- attenuation corrected backscatter and extinction profiles. |
ShortName | GLAH10 |
VersionID | 33 |
Attribute | Example Value |
---|---|
CollectionType | Dependent |
CollectionUse | Level 2 file containing: cloud and aerosol layer optical depths. |
ShortName | GLAH11 |
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 |
---|---|
Atmosphere | DisciplineTopicParametersContainer |
Attribute | Example Value |
---|---|
ECSDisciplineKeyword | Earth Science |
ECSTopicKeyword | Atmosphere |
ECSTermKeyword | Clouds |
ECSVariableKeyword | Cloud Vertical Distribution |
Attribute | Example Value |
---|---|
ECSParameterKeyword | Cloud Layer Heights |
Attribute | Example Value |
---|---|
RevisionDate | 2012-06-25 |
SuggestedUsage | GLAH09 contains the cloud layer heights for researchers. Cloud layer height data consist of top and bottom heights for up to 10 layers below 20 km at 0.25 hz and 5 hz (40hz for below 4 km). Ground heights are provided at each resolution. Each GLAH09 file was created from an equivalent GLA09 binary file. The data used to create the GLAH09 values are contained in the equivalent GLAHxx files for the GLAxx files. See the provenance metadata for the creation of the GLA09. |
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_atmosphere.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 1.1 |
ShortName | GLAH09 |
VersionID | 33 |
RangeBeginningTime | 01:51:38 |
RangeEndingTime | 00:24:45 |
RangeBeginningDate | 2003-11-18 |
RangeEndingDate | 2003-11-19 |
Attribute | Example Value |
---|---|
ReprocessingPlanned | no further update anticipated |
ReprocessingActual | reprocessed |
LocalGranuleID | GLAH09_633_2103_002_0407_0_01_0001.H5 |
ProductionDateTime | 2013-02-08T11:58:44 |
LocalVersionID | 33 |
Attribute | Example Value |
---|---|
InputPointer | gla09_test.ctl, tai-utc.dat, GLA09_633_2103_002_0407_0_01_0001.P0310, DsESDTGlGLAH09.033.desc |
Attribute | Example Value |
---|---|
ParameterName | 532_Cloud_Layer_Heights, 1064_Cloud_Layer_Heights |
Attribute | Example Value |
---|---|
OrbitNumber | 4604, 4605, 4606, 4607, 4608, 4609, 4610, 4611, 4612, 4613, 4614, 4615, 4616, 4617, 4618 |
StartOrbitNumber | 4604 |
StopOrbitNumber | 4618 |
EquatorCrossingLongitude | -103.22287, -127.41792, -151.61336, -175.8089, 159.99582, 135.80128, 111.6064, 87.41001, 63.21418, 39.01927, 14.825027, -9.368591, -33.562866, -57.758118, -81.95212 |
EquatorCrossingTime | 01:38:10, 03:14:50, 04:51:29, 06:28:07, 08:04:46, 09:41:25, 11:18:05, 12:54:44, 14:31:22, 16:08:02, 17:44:42, 19:21:21, 20:58:00, 22:34:38, 00:11:17 |
EquatorCrossingDate | 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-18, 2003-11-19 |
Attribute | Example Value |
---|---|
PercentGroundHit | 0 |
Track | 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421 |
Instrument_State | 373338 |
ReferenceOrbit | 1 |
SP_ICE_PATH_NO | 3429, 3430, 3431, 3432, 3433, 3434, 3435, 3436, 3437, 3438, 3439, 3440, 3441, 3442, 3443 |
SP_ICE_GLAS_StartBlock | NOT SET |
SP_ICE_GLAS_EndBlock | NOT SET |
Cycle | 2 |
Instance | 3 |
Instrument_State_Date | 2003-10-30 |
Instrument_State_Time | 00:00:00 |
identifier_product_doi | 10.5067/ICESAT/GLAS/DATA202 |
identifier_file_uuid | 599740C3-F062-4F49-A756-8A0DA37BC95B |
identifier_product_doi_authority | http://dx.doi.org |
Attribute | Example Value |
---|---|
ProcessDateTime | 2011-06-20T15:27:20 |
Attribute | Example Value |
---|---|
Name | glas_atm |
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 | GLA02_033_2103_002_0407_0_02_0001.DAT, GLA02_033_2103_002_0409_0_02_0001.DAT, GLA02_033_2103_002_0411_0_02_0001.DAT, GLA02_033_2103_002_0413_0_02_0001.DAT, GLA02_033_2103_002_0415_0_02_0001.DAT, GLA02_033_2103_002_0417_0_02_0001.DAT, GLA02_033_2103_002_0419_0_02_0001.DAT, GLA05_633_2103_002_0407_1_01_0001.DAT, GLA05_633_2103_002_0407_2_01_0001.DAT, GLA05_633_2103_002_0407_3_01_0001.DAT, GLA05_633_2103_002_0407_4_01_0001.DAT, GLA05_633_2103_002_0408_1_01_0001.DAT, GLA05_633_2103_002_0408_2_01_0001.DAT, GLA05_633_2103_002_0408_3_01_0001.DAT, GLA05_633_2103_002_0408_4_01_0001.DAT, GLA05_633_2103_002_0409_1_01_0001.DAT, GLA05_633_2103_002_0409_2_01_0001.DAT, GLA05_633_2103_002_0409_3_01_0001.DAT, GLA05_633_2103_002_0409_4_01_0001.DAT, GLA05_633_2103_002_0410_1_01_0001.DAT, GLA05_633_2103_002_0410_2_01_0001.DAT, GLA05_633_2103_002_0410_3_01_0001.DAT, GLA05_633_2103_002_0410_4_01_0001.DAT, GLA05_633_2103_002_0411_1_01_0001.DAT, GLA05_633_2103_002_0411_2_01_0001.DAT, GLA05_633_2103_002_0411_3_01_0001.DAT, GLA05_633_2103_002_0411_4_01_0001.DAT, GLA05_633_2103_002_0412_1_01_0001.DAT, GLA05_633_2103_002_0412_2_01_0001.DAT, GLA05_633_2103_002_0412_3_01_0001.DAT, GLA05_633_2103_002_0412_4_01_0001.DAT, GLA05_633_2103_002_0413_1_01_0001.DAT, GLA05_633_2103_002_0413_2_01_0001.DAT, GLA05_633_2103_002_0413_3_01_0001.DAT, GLA05_633_2103_002_0413_4_01_0001.DAT, GLA05_633_2103_002_0414_1_01_0001.DAT, GLA05_633_2103_002_0414_2_01_0001.DAT, GLA05_633_2103_002_0414_3_01_0001.DAT, GLA05_633_2103_002_0414_4_01_0001.DAT, GLA05_633_2103_002_0415_1_01_0001.DAT, GLA05_633_2103_002_0415_2_01_0001.DAT, GLA05_633_2103_002_0415_3_01_0001.DAT, GLA05_633_2103_002_0415_4_01_0001.DAT, GLA05_633_2103_002_0416_1_01_0001.DAT, GLA05_633_2103_002_0416_2_01_0001.DAT, GLA05_633_2103_002_0416_3_01_0001.DAT, GLA05_633_2103_002_0416_4_01_0001.DAT, GLA05_633_2103_002_0417_1_01_0001.DAT, GLA05_633_2103_002_0417_2_01_0001.DAT, GLA05_633_2103_002_0417_3_01_0001.DAT, GLA05_633_2103_002_0417_4_01_0001.DAT, GLA05_633_2103_002_0418_1_01_0001.DAT, GLA05_633_2103_002_0418_2_01_0001.DAT, GLA05_633_2103_002_0418_3_01_0001.DAT, GLA05_633_2103_002_0418_4_01_0001.DAT, GLA05_633_2103_002_0419_1_01_0001.DAT, GLA05_633_2103_002_0419_2_01_0001.DAT, GLA05_633_2103_002_0419_3_01_0001.DAT, GLA05_633_2103_002_0419_4_01_0001.DAT, GLA05_633_2103_002_0420_1_01_0001.DAT, GLA05_633_2103_002_0420_2_01_0001.DAT, GLA05_633_2103_002_0420_3_01_0001.DAT, GLA05_633_2103_002_0420_4_01_0001.DAT, ANC01_006_20031117_180000_01_0000.DAT, ANC01_006_20031118_000000_01_0000.DAT, ANC01_006_20031118_060000_01_0000.DAT, ANC01_006_20031118_120000_01_0000.DAT, ANC01_006_20031118_180000_01_0000.DAT, ANC01_006_20031119_000000_01_0000.DAT, ANC01_006_20031117_180000_01_0002.DAT, ANC01_006_20031118_000000_01_0002.DAT, ANC01_006_20031118_060000_01_0002.DAT, ANC01_006_20031118_120000_01_0002.DAT, ANC01_006_20031118_180000_01_0002.DAT, ANC01_006_20031119_000000_01_0002.DAT, ANC01_006_20031117_180000_01_0003.DAT, ANC01_006_20031118_000000_01_0003.DAT, ANC01_006_20031118_060000_01_0003.DAT, ANC01_006_20031118_120000_01_0003.DAT, ANC01_006_20031118_180000_01_0003.DAT, ANC01_006_20031119_000000_01_0003.DAT, ANC01_006_20031117_180000_01_0004.DAT, ANC01_006_20031118_000000_01_0004.DAT, ANC01_006_20031118_060000_01_0004.DAT, ANC01_006_20031118_120000_01_0004.DAT, ANC01_006_20031118_180000_01_0004.DAT, ANC01_006_20031119_000000_01_0004.DAT, ANC01_006_20031117_180000_01_0001.DAT, ANC01_006_20031118_000000_01_0001.DAT, ANC01_006_20031118_060000_01_0001.DAT, ANC01_006_20031118_120000_01_0001.DAT, ANC01_006_20031118_180000_01_0001.DAT, ANC01_006_20031119_000000_01_0001.DAT, ANC01_006_20031117_180000_01_0005.DAT, ANC01_006_20031118_000000_01_0005.DAT, ANC01_006_20031118_060000_01_0005.DAT, ANC01_006_20031118_120000_01_0005.DAT, ANC01_006_20031118_180000_01_0005.DAT, ANC01_006_20031119_000000_01_0005.DAT, ANC01_006_20031117_180000_01_0006.DAT, ANC01_006_20031118_000000_01_0006.DAT, ANC01_006_20031118_060000_01_0006.DAT, ANC01_006_20031118_120000_01_0006.DAT, ANC01_006_20031118_180000_01_0006.DAT, ANC01_006_20031119_000000_01_0006.DAT, |
Type | GLA02, GLA02, GLA02, GLA02, GLA02, GLA02, GLA02, 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, 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, anc18, anc25, anc27, anc27, anc30, anc31, ANC33, anc35, ANC36, ANC36, ANC36, ANC36, ANC36, ANC36, ANC36, anc38, anc38, anc38, anc38, anc41, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45, anc45 |
Version | 033, 033, 033, 033, 033, 033, 033, 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, 001, 005, 001, 001, 004, 004, 001, 001, 033, 033, 033, 033, 033, 033, 033, 005, 005, 005, 005, 009, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033, 033 |
Attribute | Example Value |
---|---|
Name | GLA09_633_2103_002_0407_0_01_0001.DAT |
Type | GLA09 |
Version | 633 |
Attribute | Example Value |
---|---|
ProcessDateTime | 2013-02-08T11:58:44.000000Z |
Attribute | Example Value |
---|---|
Name | GLA09_h5_convert |
Type | Data_Reformat |
Version | Version 1.1 (February 2013) |
Description | GLA09 Conversion PGE |
Attribute | Example Value |
---|---|
Name | ./gla09_test.ctl, ../../data/tai-utc.dat, in/GLA09_633_2103_002_0407_0_01_0001.P0310, ../../glas_hdf/data/esdts/DsESDTGlGLAH09.033.desc |
Type | IN_CNTL, IN_ANC_TAIUTC, IN_GLA09, IN_ESDT |
Version | 0, 0, 1, 1 |
Attribute | Example Value |
---|---|
Name | out/GLAH09_633_2103_002_0407_0_01_0001.H5 |
Type | OUT_GLAH09 |
Version | 1 |
UUID | 599740C3-F062-4F49-A756-8A0DA37BC95B |
DOI | 10.5067/ICESAT/GLAS/DATA202 |