GLAH02 Product Data Dictionary

File-Level (Global) Attributes

Attribute Example Value
featureType timeSeries
ShortName GLAH02
title GLAS/ICESat L1A Global Atmosphere Data (HDF5)
comment Data granules contain approximately 190 minutes (2 orbits) of data and will include normalized backscatter, photon counter, cloud digitizer, and timing data that serve as input to higher level atmospheric products.
summary GLAH02 contains the LIDAR data related to atmospheric measurements. It is a level 1A time-ordered product that has data corrected for instrument effects. The data are at the full 40Hz resolution and geolocated to the sub-satellite location. The data values were used as input data values to compute parameters on GLAH07. Each GLAH02 file was created from an equivalent GLA02 binary formatted file. The provenance metadata shows the history that created the GLA02.
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 1A
date_created 2013-02-27T12:14:19
spatial_coverage_type Horizontal
history 2011-06-01T19:14:02 glas_l1a 6.0.1 GLA02_033_2113_002_0085_0_01_0001.DAT, 2013-02-27T12:14:19.000000Z GLA02_h5_convert Version 1.0 (May 2012) out/GLAH02_033_2113_002_0085_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 > Spectral/Engineering > Infrared Wavelengths > Sensor Counts, Earth Science > Spectral/Engineering > Visible Wavelengths > Sensor Counts
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 2005-11-01T11:42:39
time_coverage_end 2005-11-01T14:55:57
time_coverage_duration 11620
source Satellite Measurements
HDFVersion HDF5 1.8.9
identifier_file_uuid D65E7C2A-7BC1-444F-AE6F-991DAD0B45FF
identifier_product_doi 10.5067/ICESAT/GLAS/DATA102
identifier_product_type GLAH02
identifier_product_format_version 1.0
Conventions CF-1.6
institution National Aeronautics and Space Administration (NASA)


Group: /Data_1HZ

This group contains data with a rate of 1HZ. 1Hz data may be indexed to the 40HZ data using the i_rec_ndx parameter in each respective time group.

Dimension Scales

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_HeightRel_268 DOUBLE
(UNLIMITED)
Dimension scale for r1_g_lid and i1_g_sat_f
(NOT_SET)
NOT_SET This array contains the height above the DEM, where DEM = DEMmin+HoffMin. This dimension is used for the arrays r1_g_lid and i1_g_sat_f Constants NOT_SET
DS_Photon_Counter_Index INTEGER
(UNLIMITED)
Index Dimention for the photon counter i_spcm_cts
(NOT_SET)
NOT_SET This array contains the index dimention for the photon counter i_spcm_cts Constants NOT_SET
DS_BG_Index INTEGER
(UNLIMITED)
Index for d1_g_BG
(NOT_SET)
NOT_SET This array contains the index for d1_g_BG Constants NOT_SET

Group: Data_1HZ/Time

This group contains the 1HZ index and time-related parameters.

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
shot_time_flg INTEGER_1
(UNLIMITED)
time correction flag
(NOT_SET)
NOT_SET Shot time flag; Indicates what shot time is used.

flag values flag_meanings
0, 1 transmit_time ground_bounce_time
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

flag values flag_meanings
0, 1 not_applied applied
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.

flag values flag_meanings
0, 1 not_applied applied
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.

flag values flag_meanings
0, 1 applied not_applied
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

flag values flag_meanings
0, 1 applied not_applied
Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Geolocation

This group contains geolocation-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d1_pred_lat DOUBLE
(UNLIMITED)
Predicted geodetic Latitude of the laser footprint
(latitude)
degrees_north The geodetic Latitude of the laser footprint; obtained from the predicted orbit; assuming the laser is nadir pointing. Rel 33 GLAS Binary Data DS_UTCTime_1
d1_pred_lon DOUBLE
(UNLIMITED)
Predicted geodetic Longitude of the laser footprint
(longitude)
degrees_east The geodetic Longitude of the laser footprint; obtained from the predicted orbit; assuming the laser is nadir pointing. Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Packet_Data

This group contains flags indicating the quality or suitability of data.

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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 packer APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
Rel 33 GLAS Binary Data DS_UTCTime_1
apid_ASCT_flg INTEGER_1
(UNLIMITED)
APID Data Availability Flag
(NOT_SET)
NOT_SET Command and Telemetry (C&T) board telem. data in Ancillary science packet APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Laser Monitor Board, Temperature Controller Module, Motor Control System & High Voltage Power Supply Housekeeping Telemetry) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Power Distribution Unit (PDU) Housekeeping Telemetry) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Housekeeping Temperatures #1 Telemetry) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Housekeeping Temperatures #2 Telemetry) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Small Software #2 Telemetry) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Small Software #1 Telemetry) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Large Software Telemetry #1) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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 - Large Software Telemetry #2) APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
Rel 33 GLAS Binary Data DS_UTCTime_1
apid_LPA_1_flg INTEGER_1
(UNLIMITED)
APID Data Availability Flag
(NOT_SET)
NOT_SET Laser Pulse Array (LPA) packet #1 APID availability flag

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
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

flag values flag_meanings
0, 1, 2 present filled_at_EDOS never_received_ISIPS_filled
Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Transmit_Energy

This group contains information relating to transmit energy.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d1_g_TxNrg_EU DOUBLE
(UNLIMITED)
532 nm Laser Transmit Energy at 1 Hz
(NOT_SET)
Joules The 532 nm transmitted pulse energy in energy units, converted from the counts from the transmitted energy monitor. Averaged over 40 shots. Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/LIDAR_40KMto20KM

This group contains information relating to the 532 lidar 40 to 20 km data.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r1_g_lid REAL
(UNLIMITED, 268)
532 nm LIDAR Data from 40 KM to 20 KM
(NOT_SET)
((pe/sample)*KM^2)/J) The normalized lidar signal from the 532 nm photon counting channel for the 40 KM to 20 KM segment of the atmosphere. Background subtraction, range squared, and dead time correction is applied. Rel 33 GLAS Binary Data DS_UTCTime_1
i1_g_sat_f INTEGER_1
(UNLIMITED, 268)
532 nm Saturation Flag for 40 to 20 KM Segment
(NOT_SET)
NOT_SET Flag indicating whether the 532 nm signal is saturated or not for the 40 to 20 KM Segment. 0 = not saturated, 1 = saturated. There is one flag per each sample in the profile. There are 268 samples in a profile and the profile is summed over the 40 shots in a second for a total of 268 flags (268 * 1) per second.

flag values flag_meanings
0, 1 not_saturated saturated
Rel 33 GLAS Binary Data DS_UTCTime_1
d1_g_BG DOUBLE
(UNLIMITED, 4)
532nm Background at 1 Hz
(NOT_SET)
photons/sample The normalized 532 nm background counts from upper (1) and lower (2) integration intervals. (3) is background used to compute NRB (Normalized Relative Backscatter). Averaged over 40 shots. Rel 33 GLAS Binary Data DS_UTCTime_1
d_g_IntRet DOUBLE
(UNLIMITED)
532 nm Integrated Return, 40 to 20 KM
(NOT_SET)
photons Sum of raw photon counts (after background is subtracted) over the 20 to 40 km samples. Rel 33 GLAS Binary Data DS_UTCTime_1
d_Rng2PCProf DOUBLE
(UNLIMITED)
Start Range of 532 nm Backscatter Profile
(NOT_SET)
meters The range from the spacecraft to the start of the 532 nm backscatter profile - the start of the 40 KM segment of Lidar Data. Rel 33 GLAS Binary Data DS_UTCTime_1
d_Rng_PkRt DOUBLE
(UNLIMITED)
Range from spacecraft to peak of return
(NOT_SET)
meters Range calculated from the spacecraft to the location of the peak as returned in the telemetry (ground). Rel 33 GLAS Binary Data DS_UTCTime_1
i_g_shot_ctr INTEGER_2
(UNLIMITED)
532 nm LIDAR Data Shot Counter
(NOT_SET)
NOT_SET Corresponds to first value of the 40 -1 km to 10 km aerosol science data. From APID15, Offset 14. Rel 33 GLAS Binary Data DS_UTCTime_1
i_ir_shot_ctr INTEGER_2
(UNLIMITED)
1064 nm Cloud Digitizer Shot Counter
(NOT_SET)
NOT_SET Shot number corresponding to first value of the 40 -1 km to 10 km cloud digitizer data. Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Instrument_Settings

This group contains information relating to GLAS flight paramter settings.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d_rng2CDProf DOUBLE
(UNLIMITED)
Start Range of the 1064 nm Backscatter Profile
(NOT_SET)
meters The range from the spacecraft to the start of the 1064 nm backscatter profile - the start of the 20 KM segment of Lidar Data. Rel 33 GLAS Binary Data DS_UTCTime_1
d_DEMmin DOUBLE
(UNLIMITED)
DEM minimum
(NOT_SET)
meters Onbroard spacecraft DEM minimum elevation used to calculate hmin. From APID19, Offset 1192. Rel 33 GLAS Binary Data DS_UTCTime_1
d_DEMmax DOUBLE
(UNLIMITED)
DEM maximum
(NOT_SET)
meters Onboard spacecraft DEM maximum elevation used to calculate hmax. From APID19, Offset 1193. Rel 33 GLAS Binary Data DS_UTCTime_1
d_HoffMin DOUBLE
(UNLIMITED)
Offset to minimum DEM height
(NOT_SET)
meters Offset to minimum DEM height used in flight algorithm Rel 33 GLAS Binary Data DS_UTCTime_1
d_Hsat DOUBLE
(UNLIMITED)
Geodetic altitude of satellite above earth
(NOT_SET)
meters Geodetic altitude of satellite above earth's surface computed in real time by the GLAS flight algorithm. Rel 33 GLAS Binary Data DS_UTCTime_1
i_spcm_cts INTEGER
(UNLIMITED, 8)
SPCM Raw Counts
(NOT_SET)
NOT_SET The raw counts for each photon counter (1-8) from the Single-Photon Counter Module. Rel 33 GLAS Binary Data DS_UTCTime_1
d_pc_rbias DOUBLE
(UNLIMITED)
Photon Counter Range Bias
(NOT_SET)
NOT_SET The range bias of the photon counter; always positive. Rel 33 GLAS Binary Data DS_UTCTime_1
d_SpcmBg2Del DOUBLE
(UNLIMITED)
SPCM Background 2 Delay
(NOT_SET)
nanoseconds The delay for the background #2 as read from the photon counter board. From APID19, Offset 586. Rel 33 GLAS Binary Data DS_UTCTime_1
d_SpcmRngDel DOUBLE
(UNLIMITED)
SPCM Range Delay
(NOT_SET)
nanoseconds The delay for the range gate as read from the photon counter board. This is the delay from the fire acknowledge to the start of data collection for the 40 KM profile. Rel 33 GLAS Binary Data DS_UTCTime_1
d_SpcmGateDel DOUBLE
(UNLIMITED)
SPCM Gate Delay
(NOT_SET)
nanoseconds The SPCM Gate Delay from the photon counter board. This is the delay from the fire acknowledge prior to to enabling the SPCMs. Rel 33 GLAS Binary Data DS_UTCTime_1
d_SpcmBg1Del DOUBLE
(UNLIMITED)
SPCM Background 1 Delay
(NOT_SET)
nanoseconds The Background #1 Delay from the photon counter board. Rel 33 GLAS Binary Data DS_UTCTime_1
i_Spcm_stat INTEGER
(UNLIMITED)
SPCM Status
(NOT_SET)
NOT_SET The status of the SPCM as read from the photon counter board. The Photon Counter Bd address 0xXX800004. Rel 33 GLAS Binary Data DS_UTCTime_1
d_CdBg2_Del DOUBLE
(UNLIMITED)
Cloud Digitizer Background 2 Delay
(NOT_SET)
counts The delay for background #2 from the cloud digitizer board. Rel 33 GLAS Binary Data DS_UTCTime_1
d_RngGate_Del DOUBLE
(UNLIMITED)
Cloud Digitizer Range Gate Delay
(NOT_SET)
counts The delay for range gate from the cloud digitizer board. Rel 33 GLAS Binary Data DS_UTCTime_1
d_cd_bg1_del DOUBLE
(UNLIMITED)
Cloud Digitizer Background 1 Delay
(NOT_SET)
counts The delay for background #1 from the cloud digitizer board. Rel 33 GLAS Binary Data DS_UTCTime_1
i_cd_det_stat INTEGER
(UNLIMITED)
Cloud Digitizer Detector Status
(NOT_SET)
NOT_SET Status of the detector from the cloud digitizer board. Rel 33 GLAS Binary Data DS_UTCTime_1
d_cd_rbias DOUBLE
(UNLIMITED)
Cloud Digitizer Range Bias
(NOT_SET)
NOT_SET The range bias from the cloud digitizer; always positive. Rel 33 GLAS Binary Data DS_UTCTime_1
i_cd_ad_out INTEGER_2
(UNLIMITED)
A/D Output
(NOT_SET)
NOT_SET The output from the A/D converter; from the cloud digitizer board. Used for to diagnose problems with the analog path. Rel 33 GLAS Binary Data DS_UTCTime_1
i_cd_att_set INTEGER_2
(UNLIMITED)
Attentuation Setting
(NOT_SET)
NOT_SET The attentuation setting from the cloud digitizer board. Rel 33 GLAS Binary Data DS_UTCTime_1
d_ETsettleTime DOUBLE
(UNLIMITED)
Etalon Temperature Settle Time
(NOT_SET)
seconds The commanded time the software will wait after a temperature setpoint is sent to the etalon heater. Integer units in seconds. Applies only to tracking mode. Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Etalon

This group contains information relating to GLAS etalon settings.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
i_et_cal_mode INTEGER_1
(UNLIMITED)
Etalon Calibration - Current mode
(NOT_SET)
NOT_SET Current mode of Etalon calibration: 0 = Off, 1 = Acquire, 2 = Tracking, 3 = Invalid. Rel 33 GLAS Binary Data DS_UTCTime_1
d_EtHtrC37j_c DOUBLE
(UNLIMITED)
Etalon Heater Current, Ch 37j
(NOT_SET)
Amps Etalon Heater Current, Ch 37j Rel 33 GLAS Binary Data DS_UTCTime_1
d_EtC37d_t DOUBLE
(UNLIMITED)
Etalon Temperature, Ch 37d
(NOT_SET)
Celsius Etalon Temperature, Ch 37d Rel 33 GLAS Binary Data DS_UTCTime_1
i_et_lowTrans_flag INTEGER_1
(UNLIMITED)
Etalon Flags
(NOT_SET)
NOT_SET Etalon Tracking Low Transmission Flag (= low_tr_on): 0 = GOOD (on-axis transmission is above limit); 1 = LOW (on-axis transmission is below limit)

flag values flag_meanings
0, 1 GOOD LOW
Rel 33 GLAS Binary Data DS_UTCTime_1
i_et_active_flag INTEGER_1
(UNLIMITED)
Etalon Flags
(NOT_SET)
NOT_SET Etalon Tracking Active Flag (= track_ok): 0 = PAUSED (tracking is paused); 1 = ACTIVE (tracking is active)

flag values flag_meanings
0, 1 PAUSED ACTIVE
Rel 33 GLAS Binary Data DS_UTCTime_1
i_et_testMode_flag INTEGER_1
(UNLIMITED)
Etalon Flags
(NOT_SET)
NOT_SET Etalon Test Mode Flag: 0 = NORMAL (reading data from LMB sensors); 1 = TEST (using test data values)

flag values flag_meanings
0, 1 NORMAL TEST
Rel 33 GLAS Binary Data DS_UTCTime_1
i_et_nonstandard_flag INTEGER_1
(UNLIMITED)
Etalon Flags
(NOT_SET)
NOT_SET Etalon Nonstandard Tracking Mode Flag: 0 = ORIGINAL (original tracking mode); 1 = MODIFIED (open-loop or modified closed-loop mode)

flag values flag_meanings
0, 1 ORIGINAL MODIFIED
Rel 33 GLAS Binary Data DS_UTCTime_1
i_et_openLoop_flag INTEGER_1
(UNLIMITED)
Etalon Flags
(NOT_SET)
NOT_SET Etalon Open-Loop Cycle Update Flag (= ol_updates): 0,1 = toggles each time an open-loop cycle starts

flag values flag_meanings
0, 1 toggle_0 toggle_1
Rel 33 GLAS Binary Data DS_UTCTime_1
i_et_update_ctr INTEGER_2
(UNLIMITED)
Etalon Averaging Update Counter
(NOT_SET)
NOT_SET Etalon averaging update counter. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_StartTemp DOUBLE
(UNLIMITED)
Start Temperature
(NOT_SET)
Celsius Start Temperature Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_StopTemp DOUBLE
(UNLIMITED)
Stop Temperature
(NOT_SET)
Celsius Stop Temperature. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_TempStep DOUBLE
(UNLIMITED)
Temperature Step
(NOT_SET)
Celsius Temperature Step Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_acqavg_tm DOUBLE
(UNLIMITED)
Etalon Averaging time for acquire command
(NOT_SET)
seconds Etalon Averaging Time for Acquire Command. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_temperr DOUBLE
(UNLIMITED)
Etalon Temperature Error
(NOT_SET)
NOT_SET Etalon Temperature Error. Rel 33 GLAS Binary Data DS_UTCTime_1
i_ET_state INTEGER_1
(UNLIMITED)
Etalon State
(NOT_SET)
NOT_SET State of the etalon: 0 = Init, 1 = Set Temp, 2 = Wait, 3 = Average

flag values flag_meanings
0, 1, 2, 3 init set_temp wait average
Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_acqset_tm DOUBLE
(UNLIMITED)
Etalon Temperature Settle time for acquire cmd
(NOT_SET)
seconds Etalon Temperature Settle Time for acquire cmd. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_onax_xmit DOUBLE
(UNLIMITED)
Etalon Averaged on-axis Transmission
(NOT_SET)
NOT_SET Etalon Averaged on-axis Transmission. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_offax_xmit DOUBLE
(UNLIMITED)
Etalon Averaged off-axis Transmission
(NOT_SET)
NOT_SET Etalon Averaged off-axis Transmission. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_trkfltout DOUBLE
(UNLIMITED)
Etalon Tracking Loop Filter output
(NOT_SET)
NOT_SET Etalon Tracking Loop Filter output. Rel 33 GLAS Binary Data DS_UTCTime_1
d_et_trkfltavg DOUBLE
(UNLIMITED)
Etalon Tracking Failure Average
(NOT_SET)
NOT_SET Etalon Tracking Failure Average Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Flags

This group contains information relating to flag settings.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
i_g_IntRet_qf INTEGER_1
(UNLIMITED)
Integrated Return Quality Flag
(NOT_SET)
NOT_SET Assessment of the integrated return value; indicator of boresight accuracy and signal strength. 0 = unused, 1 = excellent, 2 = good, 3 = marginal, 4 = poor, 5 = bad data.

flag values flag_meanings
0, 1, 2, 3, 4, 5 unused excellent good marginal poor bad_data
Rel 33 GLAS Binary Data DS_UTCTime_1
orbit_pred_flg INTEGER_1
(UNLIMITED)
POD flag (Orbit Flag)
(NOT_SET)
NOT_SET Predicted or precision orbit;0=precision orbit used;1=predicted orbit used;2=on-board orbit used

flag values flag_meanings
0, 1, 2 precision_orbit_used predicted_orbit_used on-board_orbit_used
Rel 33 GLAS Binary Data DS_UTCTime_1
orbit_man_flg INTEGER_1
(UNLIMITED)
POD flag (Orbit Flag)
(NOT_SET)
NOT_SET Maneuvers;0=no maneuvers;1=maneuvers occurred during this record; orbit degraded

flag values flag_meanings
0, 1 no_maneuvers maneuvers orbit_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;0=no model problems;1=model problems; orbit RMS > 5 cm; required accuracy not met

flag values flag_meanings
0, 1 no_problems problems
Rel 33 GLAS Binary Data DS_UTCTime_1
orbit_att_flg INTEGER_1
(UNLIMITED)
POD flag (Orbit Flag)
(NOT_SET)
NOT_SET Attitude;0=instrument attitude used for orbit;1=modeled attitude used, possible orbit degradation

flag values flag_meanings
0, 1 instrument_attitude_used modeled_attitude_used 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;0=solar ray orientation used from measurement;1=modeled solar ray orientation, possible orbit degradation

flag values flag_meanings
0, 1 solar_ray_orientation_from_measurement modeled_solar_ray_orientation
Rel 33 GLAS Binary Data DS_UTCTime_1
orbit_gps_flg INTEGER_1
(UNLIMITED)
POD flag (Orbit Flag)
(NOT_SET)
NOT_SET GPS;0=no GPS data outage;1=GPS data missing from portion of this record, possible degradation

flag values flag_meanings
0, 1 no_GPS_data_outage GPS_data_missing
Rel 33 GLAS Binary Data DS_UTCTime_1
i_DitheringEnabledFlag INTEGER_1
(UNLIMITED)
Dithering Enabled Flag
(NOT_SET)
NOT_SET 0=FALSE, 1=TRUE

flag values flag_meanings
0, 1 FALSE TRUE
Rel 33 GLAS Binary Data DS_UTCTime_1


Group: /Data_5HZ

This group contains data with a rate of 5HZ. 5Hz data may be indexed to the 1HZ data using the i_rec_ndx parameter in each respective time group.

Dimension Scales

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_HeightRel_132 DOUBLE
(UNLIMITED)
Dimension scale for r5_g_lid i5_g_sat_f and r5_ir_lid
(NOT_SET)
NOT_SET This array contains the height above the DEM, where DEM = DEMmin+HoffMin. This dimension is used for the arrays r5_g_lid i5_g_sat_f and r5_ir_lid Constants NOT_SET
DS_BG_Index INTEGER
(UNLIMITED)
Index for d5_g_BG
(NOT_SET)
NOT_SET This array contains the index for d5_g_BG Constants NOT_SET

Group: Data_5HZ/Time

This group contains the 5HZ index and time-related parameters.

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

Group: Data_5HZ/Geolocation

This group contains geolocation-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d5_pred_lat DOUBLE
(UNLIMITED)
Predicted geodetic Latitude of the laser footprint
(latitude)
degrees_north The geodetic Latitude of the laser footprint; obtained from the predicted orbit; assuming the laser is nadir pointing. Rel 33 GLAS Binary Data DS_UTCTime_5
d5_pred_lon DOUBLE
(UNLIMITED)
Predicted geodetic Longitude of the laser footprint
(longitude)
degrees_east The geodetic Longitude of the laser footprint; obtained from the predicted orbit; assuming the laser is nadir pointing. Rel 33 GLAS Binary Data DS_UTCTime_5

Group: Data_5HZ/Transmit_Energy

This group contains information relating to transmit energy.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d5_g_TxNrg_EU DOUBLE
(UNLIMITED)
532 nm Laser Transmit Energy at 5 Hz
(NOT_SET)
Joules The 532 nm transmitted pulse energy in energy units, converted from the counts from the transmitted energy monitor. Averaged over 8 shots. Rel 33 GLAS Binary Data DS_UTCTime_5
d5_ir_TxNrgEU DOUBLE
(UNLIMITED)
1064 nm Laser Transmit Energy at 5 Hz
(NOT_SET)
Joules The 1064 nm laser pulse energy, computed from the digitized outgoing pulse and the detector temperature. Averaged over 8 shots. Rel 33 GLAS Binary Data DS_UTCTime_5

Group: Data_5HZ/LIDAR_20KMto10KM

This group contains information relating to GLAS lidar 20 to 10 km data.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r5_g_lid REAL
(UNLIMITED, 132)
532 nm LIDAR Data from 20 KM to 10 KM
(NOT_SET)
((pe/sample)*KM^2)/J) The normalized lidar signal from the 532 nm photon counting channel for the 20 KM to 10 KM segment of the atmosphere. Background subtraction, range squared, and dead time correction is applied. Sums of 8 samples. Rel 33 GLAS Binary Data DS_UTCTime_5
i5_g_sat_f INTEGER_1
(UNLIMITED, 132)
532 nm Saturation Flag for 20 to 10 KM Segment
(NOT_SET)
NOT_SET Flag indicating whether the 532 nm signal is saturated or not for the 20 to 10 KM Profile. 0 = not saturated, 1 = saturated. There is one flag per each sample in the profile. There are 132 samples in a profile and the profiles are summed over 8 shots for a total of 660 flags (132 * 5) per second. Flags 0-131 are the flags for shots 1-8, Flags 132-263 are the flags for shots 9-16, etc.

flag values flag_meanings
0, 1 not_saturated saturated
Rel 33 GLAS Binary Data DS_UTCTime_5
d_gPredCldTop DOUBLE
(UNLIMITED)
532 nm Predicted Cloud Top Height at 5Hz
(NOT_SET)
meters The predicted height of the first cloud above local ground, predicted from the 532 nm lidar signal. Rel 33 GLAS Binary Data DS_UTCTime_5
r5_ir_lid REAL
(UNLIMITED, 132)
1064 nm LIDAR Data from 20 KM to 10 KM
(NOT_SET)
(W*KM^2)/J) The normalized lidar signal from the 1064 nm cloud digitizer data for the 20 KM to 10 KM atmospheric segment. Background subtraction, and range squared correction is applied. Rel 33 GLAS Binary Data DS_UTCTime_5

Group: Data_5HZ/Background

This group contains information relating to 5 hz background.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d5_g_BG DOUBLE
(UNLIMITED, 4)
532 nm Background at 5 Hz
(NOT_SET)
photons/sample The normalized 532 nm background counts from upper (1) and lower (2) integration intervals.(3) is background used to compute NRB (Normalized Relative Backscatter). Averaged over 8 shots. Rel 33 GLAS Binary Data DS_UTCTime_5
d5_ir_BG DOUBLE
(UNLIMITED, 4)
1064 nm Background at 5 Hz
(NOT_SET)
W The normalized 1064 nm background counts from upper (1) and lower (2) integration intervals.(3) is background used to compute NRB (Normalized Relative Backscatter). Averaged over 8 shots. Rel 33 GLAS Binary Data DS_UTCTime_5
i_CldPkSig INTEGER_1
(UNLIMITED)
Cloud Return Peak Signal
(NOT_SET)
photons / sample Peak photon count in the 532 nm backscatter data within the range for cloud returns; at the 5 Hz rate. Rel 33 GLAS Binary Data DS_UTCTime_5
i_gndret_pksig INTEGER_1
(UNLIMITED)
Ground Return Peak Signal
(NOT_SET)
photons / sample Peak photon count in the 532 nm backscatter data. It is assumed that a ground return causes the maximum signal; at the 5 Hz rate. Rel 33 GLAS Binary Data DS_UTCTime_5
i_gnd_ret_loc INTEGER_1
(UNLIMITED)
Ground Return Location
(NOT_SET)
sample number Sample number (from the end of the profile) of the estimated ground return peak signal; at the 5 Hz rate. Rel 33 GLAS Binary Data DS_UTCTime_5


Group: /Data_40HZ/

This group contains data with a rate of 40HZ. 40Hz data may be indexed to the 1HZ data using the i_rec_ndx parameter in each respective time group.

Dimension Scales

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
DS_HeightRel_148 DOUBLE
(UNLIMITED)
Dimension scale for r40_g_lid i40_g_sat_f and r40_ir_lid
(NOT_SET)
NOT_SET This array contains the height above the DEM, where DEM = DEMmin+HoffMin. This dimension is used for the arrays r40_g_lid i40_g_sat_f and r40_ir_lid Constants NOT_SET
DS_BG_Index INTEGER
(UNLIMITED)
Index for d40_g_BG
(NOT_SET)
NOT_SET This array contains the index for d40_g_BG Constants NOT_SET

Group: Data_40HZ/Time

This group contains the 40HZ index and time-related parameters.

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

Group: Data_40HZ/Geolocation

This group contains geolocation-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d40_pred_lat DOUBLE
(UNLIMITED)
Predicted geodetic Latitude of the laser footprint
(latitude)
degrees_north The geodetic Latitude of the laser footprint; obtained from the predicted orbit; assuming the laser is nadir pointing. Rel 33 GLAS Binary Data DS_UTCTime_40
d40_pred_lon DOUBLE
(UNLIMITED)
Predicted geodetic Longitude of the laser footprint
(longitude)
degrees_east The geodetic Longitude of the laser footprint; obtained from the predicted orbit; assuming the laser is nadir pointing. Rel 33 GLAS Binary Data DS_UTCTime_40

Group: Data_40HZ/Transmit_Energy

This group contains information relating to transmit energy.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d40_g_TxNrg_EU DOUBLE
(UNLIMITED)
532 nm Laser Transmit Energy at 40 Hz
(NOT_SET)
Joules The 532 nm transmitted pulse energy in energy units, converted from the counts from the transmitted energy monitor. Rel 33 GLAS Binary Data DS_UTCTime_40
d40_ir_TxNrgEU DOUBLE
(UNLIMITED)
1064 nm Laser Transmit Energy at 40 Hz
(NOT_SET)
Joules The 1064 nm laser pulse energy, computed from the digitized outgoing pulse and the detector temperature. Rel 33 GLAS Binary Data DS_UTCTime_40
i_g_TxNrg_Cts INTEGER_2
(UNLIMITED)
532 nm Laser Transmit Energy, counts
(NOT_SET)
counts The 532 nm transmitted pulse energy, in raw counts from the transmitted pulse energy monitor. Rel 33 GLAS Binary Data DS_UTCTime_40
i_ir_TxNrg_qf INTEGER_1
(UNLIMITED)
1064 nm Laser Transmit Energy Quality Flag
(NOT_SET)
NOT_SET Evaluation of the 1064 nm laser transmit energy which is an indication of the laser health; 1 = full laser energy, 2 = marginal laser energy, 3 = deficient laser energy, 0 = not used.

flag values flag_meanings
0, 1, 2, 3 not_used full_laser_energy marginal_laser_energy deficient_laser_energy
Rel 33 GLAS Binary Data DS_UTCTime_40
i_g_TxNrg_qf INTEGER_1
(UNLIMITED)
532 nm Laser Transmit Energy Quality Flag
(NOT_SET)
NOT_SET Evaluation of the 532 nm laser transmit energy which is an indication of the laser health; 1 = full laser energy, 2 = marginal laser energy, 3 = deficient laser energy, 0 = not used.

flag values flag_meanings
0, 1, 2, 3 not_used full_laser_energy marginal_laser_energy deficient_laser_energy
Rel 33 GLAS Binary Data DS_UTCTime_40

Group: Data_40HZ/LIDAR_10KMtoNeg1KM

This group contains information relating to lidar 10 to -1 km data.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r40_g_lid REAL
(UNLIMITED, 148)
532 nm LIDAR Data from 10 KM to -1 KM
(NOT_SET)
((pe/sample)*KM^2)/J) The normalized lidar signal from the 532 nm photon counting channel for the 10 KM to -1 segment of the atmosphere. Background subtraction, range squared, and dead time correction is applied. NOTES: pe = photons; J = Joules. Rel 33 GLAS Binary Data DS_UTCTime_40
i40_g_sat_f INTEGER_1
(UNLIMITED, 148)
532 nm Saturation Flag for 10 to -1 KM Segment
(NOT_SET)
NOT_SET Flag indicating whether the 532 nm signal is saturated or not for the 10 to -1 KM profile. 0 = not saturated, 1 = saturated. 1 flag per each sample in the profile. There are 148 samples in the profile and the profiles occur at 40 per second for a total of 5920 flags (148 * 40) per second. Flags 0-147 are the flags for shot 1, flags 148-295 are the flags for shot 2, etc.

flag values flag_meanings
0, 1 not_saturated saturated
Rel 33 GLAS Binary Data DS_UTCTime_40
r40_ir_lid REAL
(UNLIMITED, 148)
1064 nm LIDAR Data from 10 KM to -1 KM
(NOT_SET)
(W*KM^2)/J) The normalized lidar signal from the 1064 nm cloud digitizer data for the 10 KM to -1 KM atmospheric segment. Background subtraction, and range squared correction is applied. Rel 33 GLAS Binary Data DS_UTCTime_40

Group: Data_40HZ/Background

This group contains information relating to background data.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
d40_g_BG DOUBLE
(UNLIMITED, 4)
532 nm Background at 40 Hz
(NOT_SET)
photons/sample The normalized 532 nm background counts from upper (1) and lower (2) integration intervals.(3) is background used to compute NRB (Normalized Relative Backscatter). Rel 33 GLAS Binary Data DS_UTCTime_40
d40_ir_BG DOUBLE
(UNLIMITED, 4)
1064 nm Background at 40 Hz
(NOT_SET)
W The normalized 1064 nm background counts from upper (1) and lower (2) integration intervals.(3) is background used to compute NRB (Normalized Relative Backscatter). Rel 33 GLAS Binary Data DS_UTCTime_40
d_4nsBgMean DOUBLE
(UNLIMITED)
4ns Background Mean Value
(NOT_SET)
counts 4ns Filter Background mean Rel 33 GLAS Binary Data DS_UTCTime_40
d_4nsBgSDev DOUBLE
(UNLIMITED)
4ns Background Standard Deviation
(NOT_SET)
counts 4ns filter background standard deviation. Rel 33 GLAS Binary Data DS_UTCTime_40
i_DualPinA INTEGER_2
(UNLIMITED)
Dual Pin A data
(NOT_SET)
counts Dual Pin A data (from APID19, offset 1248) Rel 33 GLAS Binary Data DS_UTCTime_40
i_DualPinB INTEGER_2
(UNLIMITED)
Dual Pin B Data
(NOT_SET)
counts Dual Pin B data from APID19, Offset 1288 Rel 33 GLAS Binary Data DS_UTCTime_40

/ANCILLARY_DATA

/ANCILLARY_DATA

Attribute Example Value
glas_osc_rate 1.000000026
glas_osc_rate_date 2005-10-21
glas_osc_rate_time 00:00:00
sc_osc_rate 0.99999998854809
sc_osc_rate_date 2005-10-21
sc_osc_rate_time 00:00:00
internal_time_delay 0.0000151100
internal_time_delay_date 2005-10-21
internal_time_delay_time 00:00:00
internal_range_delay 9.5560
internal_range_delay_date 2005-10-21
internal_range_delay_time 00:00:00
Additional_Attribute ReferenceOrbit, Track, 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.

/METADATA

/METADATA

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=gla02_test.ctl

/METADATA/COLLECTIONMETADATA

Attribute Example Value
DLLName libDsESDTSyBASIC.001Sh.so
GranuleTimeDuration 11620
SpatialSearchType NotSupported
DataFileFormat HDF5
ScienceMimeType application/x-hdfeos
BrowseMimeType application/x-hdfeos
BrowseOnlineMimeType image/jpeg
ShortName GLAH02
LongName GLAS/ICESat L1A Global Atmosphere Data (HDF5)
CollectionDescription Data granules contain approximately 190 minutes (2 orbits) of data and will include normalized backscatter, photon counter, cloud digitizer, and timing data that serve as input to higher level atmospheric products.
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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes

Attribute Example Value
Track AdditionalAttributesContainer
Instrument_State AdditionalAttributesContainer
ReferenceOrbit AdditionalAttributesContainer
Cycle AdditionalAttributesContainer
Instance AdditionalAttributesContainer
Instrument_State_Date AdditionalAttributesContainer
Instrument_State_Time AdditionalAttributesContainer
identifier_product_doi AdditionalAttributesContainer
identifier_file_uuid AdditionalAttributesContainer
identifier_product_doi_authority AdditionalAttributesContainer

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Cycle

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Instance

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Instrument_State

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Instrument_State_Date

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Instrument_State_Time

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/ReferenceOrbit

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Track

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/identifier_file_uuid

Attribute Example Value
AdditionalAttributeDatatype varchar
AdditionalAttributeDescription Universally unique identifier for this data product's files
AdditionalAttributeName identifier_file_uuid

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/identifier_product_doi

Attribute Example Value
AdditionalAttributeDatatype varchar
AdditionalAttributeDescription Digital object identifier that uniquely identifies this data product
AdditionalAttributeName identifier_product_doi

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/identifier_product_doi/InformationContent

Attribute Example Value
ParameterValue 10.5067/ICESAT/GLAS/DATA102

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/identifier_product_doi_authority

Attribute Example Value
AdditionalAttributeDatatype varchar
AdditionalAttributeDescription URL of the digital object identifier resolving authority
AdditionalAttributeName identifier_product_doi_authority

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/identifier_product_doi_authority/InformationContent

Attribute Example Value
ParameterValue http://dx.doi.org

/METADATA/COLLECTIONMETADATA/CSDTDescription

Attribute Example Value
PrimaryCSDT n-Dim Array of Records
IndirectReference tracks/orbits
Implementation HDF
CSDTComments Each file contains two orbits of data.

/METADATA/COLLECTIONMETADATA/CollectionAssociation

Attribute Example Value
GLA00 CollectionAssociationContainer
GLAH07 CollectionAssociationContainer
GLAH08 CollectionAssociationContainer
GLAH09 CollectionAssociationContainer
GLAH10 CollectionAssociationContainer
GLAH11 CollectionAssociationContainer

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLA00

Attribute Example Value
CollectionType Science Associated
CollectionUse The initial collection of GLAS instrument data downlinked from the spacecraft.
ShortName GLA00
VersionID 1

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLAH07

Attribute Example Value
CollectionType Dependent
CollectionUse Level 1B file containing: calibrated backscatter profiles.
ShortName GLAH07
VersionID 33

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLAH08

Attribute Example Value
CollectionType Dependent
CollectionUse Level 2 file containing: planetary boundary layer heights and aerosol layer top and bottom.
ShortName GLAH08
VersionID 33

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLAH09

Attribute Example Value
CollectionType Dependent
CollectionUse Level 2 file containing: cloud layer top and bottom heights.
ShortName GLAH09
VersionID 33

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLAH10

Attribute Example Value
CollectionType Dependent
CollectionUse Level 2 file containing: cloud- and aerosol- attenuation corrected backscatter and extinction profiles.
ShortName GLAH10
VersionID 33

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLAH11

Attribute Example Value
CollectionType Dependent
CollectionUse Level 2 file containing: cloud and aerosol layer optical depths.
ShortName GLAH11
VersionID 33

/METADATA/COLLECTIONMETADATA/ContactOrganization

Attribute Example Value
Data_Originator ContactOrganizationContainer
Archive ContactOrganizationContainer

/METADATA/COLLECTIONMETADATA/ContactOrganization/Archive

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

/METADATA/COLLECTIONMETADATA/ContactOrganization/Data_Originator

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

/METADATA/COLLECTIONMETADATA/ContactPerson

Attribute Example Value
Hancock ContactPersonContainer
Schutz ContactPersonContainer
Zwally ContactPersonContainer
DiMarzio ContactPersonContainer

/METADATA/COLLECTIONMETADATA/ContactPerson/DiMarzio

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

/METADATA/COLLECTIONMETADATA/ContactPerson/Hancock

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

/METADATA/COLLECTIONMETADATA/ContactPerson/Schutz

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

/METADATA/COLLECTIONMETADATA/ContactPerson/Zwally

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

/METADATA/COLLECTIONMETADATA/DisciplineTopicParameters

/METADATA/COLLECTIONMETADATA/DisciplineTopicParameters/Spectral

Attribute Example Value
Engineering DisciplineTopicParametersContainer

/METADATA/COLLECTIONMETADATA/DisciplineTopicParameters/Spectral/Engineering

Attribute Example Value
ECSDisciplineKeyword Earth Science
ECSTopicKeyword Spectral/Engineering
ECSTermKeyword Visible Wavelengths
ECSVariableKeyword Sensor Counts

/METADATA/COLLECTIONMETADATA/ECSCollection

Attribute Example Value
RevisionDate 2012-06-25
SuggestedUsage GLAH02 contains the LIDAR data related to atmospheric measurements. It is a level 1A time-ordered product that has data corrected for instrument effects. The data are at the full 40Hz resolution and geolocated to the sub-satellite location. The data values were used as input data values to compute parameters on GLAH07. Each GLAH02 file was created from an equivalent GLA02 binary formatted file. The provenance metadata shows the history that created the GLA02.
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

/METADATA/COLLECTIONMETADATA/Platform

Attribute Example Value
ICESat PlatformContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat

Attribute Example Value
PlatformShortName ICESat
PlatformLongName Ice, Cloud, and Land Elevation Satellite
PlatformType Spacecraft

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument

Attribute Example Value
GLAS InstrumentContainer
GPS InstrumentContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS

Attribute Example Value
InstrumentShortName GLAS
InstrumentLongName Geoscience Laser Altimeter System
InstrumentTechnique Laser Altimetry and Light Detection and Radar
NumberofSensors 3

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor

Attribute Example Value
LA SensorContainer
PC SensorContainer
CD SensorContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/CD

Attribute Example Value
SensorShortName CD
SensorLongName Cloud LIDAR
SensorTechnique Measure of 1064nm return energy in 75m bins from 20km to surface

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/CD/SensorCharacteristic

Attribute Example Value
wavelength SensorCharacteristicContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/CD/SensorCharacteristic/wavelength

Attribute Example Value
SensorCharacteristicName wavelength
SensorCharacteristicDescription detector
SensorCharacteristicDataType varchar
SensorCharacteristicUnit nanometer
SensorCharacteristicValue 1064 nm

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/LA

Attribute Example Value
SensorShortName LA
SensorLongName Laser Altimeter
SensorTechnique Exact Measurement of Time between Transmit Pulse and receive ground return

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/LA/SensorCharacteristic

Attribute Example Value
wavelength SensorCharacteristicContainer
waveform SensorCharacteristicContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/LA/SensorCharacteristic/waveform

Attribute Example Value
SensorCharacteristicName waveform
SensorCharacteristicDescription digitizer
SensorCharacteristicDataType varchar
SensorCharacteristicUnit counts
SensorCharacteristicValue 0-255

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/LA/SensorCharacteristic/wavelength

Attribute Example Value
SensorCharacteristicName wavelength
SensorCharacteristicDescription transmission
SensorCharacteristicDataType varchar
SensorCharacteristicUnit nanometer
SensorCharacteristicValue 1064 nm

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/PC

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

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/PC/SensorCharacteristic

Attribute Example Value
wavelength SensorCharacteristicContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/Sensor/PC/SensorCharacteristic/wavelength

Attribute Example Value
SensorCharacteristicName wavelength
SensorCharacteristicDescription detector
SensorCharacteristicDataType varchar
SensorCharacteristicUnit nanometer
SensorCharacteristicValue 532nm

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GPS

Attribute Example Value
InstrumentShortName GPS
InstrumentLongName Global Positioning System Receiver
InstrumentTechnique Radionavigation
NumberofSensors 1

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GPS/Sensor

Attribute Example Value
GPS_Receiver SensorContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GPS/Sensor/GPS_Receiver

Attribute Example Value
SensorShortName GPS Receiver
SensorLongName Dual frequency GPS receiver
SensorTechnique Pseudorange and carrier phase

/METADATA/COLLECTIONMETADATA/ProcessingLevel

Attribute Example Value
ProcessingLevelDescription Sensor Measurements
ProcessingLevelID 1A

/METADATA/COLLECTIONMETADATA/Review

Attribute Example Value
ScienceReviewDate 2001-03-04
ScienceReviewStatus QA at DAACs
FutureReviewDate 2001-09-04

/METADATA/COLLECTIONMETADATA/Spatial

Attribute Example Value
SpatialCoverageType Horizontal
WestBoundingCoordinate -180.0
NorthBoundingCoordinate 90.0
EastBoundingCoordinate 180.0
SouthBoundingCoordinate -90.0

/METADATA/COLLECTIONMETADATA/StorageMediumClass

Attribute Example Value
StorageMedium Online

/METADATA/COLLECTIONMETADATA/Temporal

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

/METADATA/INVENTORYMETADATA

Attribute Example Value
PGEVersion Version 1.0
ShortName GLAH02
VersionID 33
RangeBeginningTime 11:42:39
RangeEndingTime 14:55:57
RangeBeginningDate 2005-11-01
RangeEndingDate 2005-11-01

/METADATA/INVENTORYMETADATA/ECSDataGranule

Attribute Example Value
ReprocessingPlanned no further update anticipated
ReprocessingActual reprocessed
LocalGranuleID GLAH02_033_2113_002_0085_0_01_0001.H5
ProductionDateTime 2013-02-27T12:14:19
LocalVersionID 33

/METADATA/INVENTORYMETADATA/InputGranule

Attribute Example Value
InputPointer gla02_test.ctl, tai-utc.dat, GLA02_033_2113_002_0085_0_01_0001.DAT, DsESDTGlGLAH02.033.desc

/METADATA/INVENTORYMETADATA/MeasuredParameter

Attribute Example Value
ParameterName PC_Profile, CD_Profile

/METADATA/INVENTORYMETADATA/OrbitCalculatedSpatialDomain

Attribute Example Value
OrbitNumber 15247, 15248, 15249
StartOrbitNumber 15247
StopOrbitNumber 15249
EquatorCrossingLongitude 127.56265, 103.366974, 79.17059
EquatorCrossingTime 11:29:14, 13:05:53, 14:42:32
EquatorCrossingDate 2005-11-01, 2005-11-01, 2005-11-01

/METADATA/INVENTORYMETADATA/ProductSpecificMetadata

Attribute Example Value
Track 85, 86, 87
Instrument_State 373340
ReferenceOrbit 1
Cycle 2
Instance 13
Instrument_State_Date 2005-10-21
Instrument_State_Time 00:00:00
identifier_product_doi 10.5067/ICESAT/GLAS/DATA102
identifier_file_uuid D65E7C2A-7BC1-444F-AE6F-991DAD0B45FF
identifier_product_doi_authority http://dx.doi.org

/METADATA/PROVENANCE

/METADATA/PROVENANCE/STEP_1

Attribute Example Value
ProcessDateTime 2011-06-01T19:14:02

/METADATA/PROVENANCE/STEP_1/ProcessAgent

Attribute Example Value
Name glas_l1a
Type 1A
Version 6.0.1
Description This process is an instantiation of the GLAS Science Algorithm Software (GSAS) 1A ATBDs.

/METADATA/PROVENANCE/STEP_1/ProcessInput

Attribute Example Value
Name GLA00_003_20051101_060000_01_0012.DAT, GLA00_003_20051101_120000_01_0012.DAT, GLA00_003_20051101_060004_01_0013.DAT, GLA00_003_20051101_120021_01_0013.DAT, GLA00_003_20051101_060000_01_0015.DAT, GLA00_003_20051101_120000_01_0015.DAT, GLA00_003_20051101_060000_01_0017.DAT, GLA00_003_20051101_120000_01_0017.DAT, GLA00_003_20051101_060000_01_0019.DAT, GLA00_003_20051101_120000_01_0019.DAT, GLA00_003_20051101_060003_01_0020.DAT, GLA00_003_20051101_120003_01_0020.DAT, GLA00_003_20051101_060003_01_0021.DAT, GLA00_003_20051101_120003_01_0021.DAT, GLA00_003_20051101_060015_01_0022.DAT, GLA00_003_20051101_120015_01_0022.DAT, GLA00_003_20051101_060015_01_0023.DAT, GLA00_003_20051101_120015_01_0023.DAT, GLA00_003_20051101_060003_01_0024.DAT, GLA00_003_20051101_120003_01_0024.DAT, GLA00_003_20051101_060003_01_0025.DAT, GLA00_003_20051101_120003_01_0025.DAT, GLA00_003_20051101_060000_01_0026.DAT, GLA00_003_20051101_120000_01_0026.DAT, GLA00_003_20051101_060031_01_0050.DAT, GLA00_003_20051101_120031_01_0050.DAT, GLA00_003_20051101_060003_01_0055.DAT, GLA00_003_20051101_120003_01_0055.DAT, GLA00_003_20051101_060000_01_1984.DAT, GLA00_003_20051101_120000_01_1984.DAT, anc07_033_02_0000.dat, anc07_033_02_0001.dat, anc07_033_02_0002.dat, anc07_033_02_0003.dat, anc07_033_02_0004.dat, anc07_033_02_0005.dat, anc07_033_02_0006.dat, ANC20_005_20051031_235947_01_0001.DAT, anc25_005_20090101_000000_01_0000.dat, ANC29_033_20051101_060000_01_0001.DAT, ANC29_033_20051101_120000_01_0001.DAT, ANC32_033_20051101_060000_01_0001.DAT, ANC32_033_20051101_120000_01_0001.DAT, ANC33_001_20100406_000000_01_0000.DAT, anc45_033_03_0001.dat, anc45_033_03_0002.dat, anc45_033_03_0003.dat, anc45_033_03_0004.dat
Type GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, GLA00, anc07, anc07, anc07, anc07, anc07, anc07, anc07, ANC20, anc25, ANC29, ANC29, ANC32, ANC32, ANC33, anc45, anc45, anc45, anc45
Version 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 003, 033, 033, 033, 033, 033, 033, 033, 005, 005, 033, 033, 033, 033, 001, 033, 033, 033, 033

/METADATA/PROVENANCE/STEP_1/ProcessOutput

Attribute Example Value
Name GLA02_033_2113_002_0085_0_01_0001.DAT
Type GLA02
Version 33

/METADATA/PROVENANCE/STEP_2

Attribute Example Value
ProcessDateTime 2013-02-27T12:14:19.000000Z

/METADATA/PROVENANCE/STEP_2/ProcessAgent

Attribute Example Value
Name GLA02_h5_convert
Type Data_Reformat
Version Version 1.0 (May 2012)
Description GLA02 Conversion PGE

/METADATA/PROVENANCE/STEP_2/ProcessInput

Attribute Example Value
Name ./gla02_test.ctl, ../../data/tai-utc.dat, in/GLA02_033_2113_002_0085_0_01_0001.DAT, ../../glas_hdf/data/esdts/DsESDTGlGLAH02.033.desc
Type IN_CNTL, IN_ANC_TAIUTC, IN_GLA02, IN_ESDT
Version 0, 0, 1, 1

/METADATA/PROVENANCE/STEP_2/ProcessOutput

Attribute Example Value
Name out/GLAH02_033_2113_002_0085_0_01_0001.H5
Type OUT_GLAH02
Version 1
UUID D65E7C2A-7BC1-444F-AE6F-991DAD0B45FF
DOI 10.5067/ICESAT/GLAS/DATA102

Page last updated: 04/08/13