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GLAH08 Product Data Dictionary

File-Level (Global) Attributes

Attribute Example Value
featureType timeSeries
ShortName GLAH08
title GLAS/ICESat L2 Global Planetary Boundary Layer & Elevated Aerosol Layers (HDF5)
comment The level 2 planetary boundary layer and elevated aerosol layer height data will be provided at a minimum of once per 4 seconds. Data granules will contain approximately 23 hours (14 orbits) of data.
summary GLAH08 contains the heights of planetary boundary layer (PBL) and aerosol layers for researchers. Elevated aerosol layer height data consist of top and bottom heights for up to 5 layers below 20 km and for up to 3 layers above 20 km. Each GLAH08 file was created from an equivalent GLA08 binary file. The data used to create the GLAH08 values are contained in the equivalent GLAHxx files for the GLAxx files. See the provenance metadata for the creation of the GLA08.
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 2013-02-08T11:56:22
spatial_coverage_type Horizontal
history 2011-06-20T15:27:20 glas_atm 6.0.1 GLA08_633_2103_002_0407_0_01_0001.DAT, 2013-02-08T11:56:22.000000Z GLA08_h5_convert Version 1.1 (February 2013) out/GLAH08_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 > Altitude > Planetary Boundary Layer Height > Aerosol Layer Height, Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties > Aerosol Layer Height
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/DATA201
identifier_product_type GLAH08
identifier_product_format_version 1.0
Conventions CF-1.6
institution National Aeronautics and Space Administration (NASA)


Group: /Data_4s

This group contains data with a rate of once per 4 seconds. 4 second 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_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_2 INTEGER
(UNLIMITED)
Cloud Layer Index
(NOT_SET)
NOT_SET This array contains the cloud layer index, up to 2 Constants NOT_SET
DS_Cloud_Layer_3 INTEGER
(UNLIMITED)
Cloud Layer Index
(NOT_SET)
NOT_SET This array contains the cloud layer index, up to 3 Constants NOT_SET
DS_Cloud_Layer_5 INTEGER
(UNLIMITED)
Cloud Layer Index
(NOT_SET)
NOT_SET This array contains the cloud layer index, up to 5 Constants NOT_SET

Group: Data_4s/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_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

flag values flag_meanings
0, 1 transmit_time 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

flag values flag_meanings
0, 1 not_applied applied
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

flag values flag_meanings
0, 1 not_applied applied
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

flag values flag_meanings
0, 1 applied not_applied
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

flag values flag_meanings
0, 1 applied not_applied
Rel 33 GLAS Binary Data DS_UTCTime_4s

Group: Data_4s/Geolocation

This group contains information relating to the GLAS campaign geolocation.

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 0.25 hertz rate. Rel 33 GLAS Binary Data DS_UTCTime_4s
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 0.25 hertz rate. Rel 33 GLAS Binary Data DS_UTCTime_4s

Group: Data_4s/Flags

This group contains flags at 1 per 4 sec.

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.

flag values flag_meanings
0, 1 PAD_used PAD_not_used
Rel 33 GLAS Binary Data DS_UTCTime_4s
i_pscf_b20 INTEGER_1
(UNLIMITED, 5)
Layer Height Flag Below 20km
(NOT_SET)
NOT_SET Layer Height Flag Below 20km. value 0 = not a Polar Stratospheric Cloud (PSC); value 1 = low likely; value 2 = medium likely; value 3 = high likely

flag values flag_meanings
0, 1, 2, 3 not_PSC low_likely medium_likely high_likely
Rel 33 GLAS Binary Data DS_UTCTime_4s
i_pscf_a20 INTEGER_1
(UNLIMITED, 3)
Layer Height Flag Above 20km
(NOT_SET)
NOT_SET Layer Height Flag Above 20km. value 0 = not a Polar Stratospheric Cloud (PSC); value 1 = low likely; value 2 = medium likely; value 3 = high likely

flag values flag_meanings
0, 1, 2, 3 not_PSC low_likely medium_likely high_likely
Rel 33 GLAS Binary Data DS_UTCTime_4s
i4_aer_qf INTEGER_1
(UNLIMITED, 5)
Layer Height Flag
(NOT_SET)
NOT_SET quality flag at 1 per 4 sec: value 0 = aerosol layers were searched for, but not detected; values 1 to 13 = increasing goodness; value 14 = bad; value 15 = lower (<20 km) aerosol layers were not searched for.

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 aerosol_layers_not_detected found_1 found_2 found_3 found_4 found_5 found_6 found_7 found_8 found_9 found_10 found_11 found_12 found_13 found_14 aerosol_layers_not_searched
Rel 33 GLAS Binary Data DS_UTCTime_4s
i4_aer_af INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET availability flag at 1 per 4 sec: Contains the number of elevated (excluding PBL) aerosol layers found below 20 km from a 4 second average of the data. Value 0 = aerosol layers were searched for, but not detected; value 15 = aerosol layers were not searched for.

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 aerosol_layers_not_detected found_1 found_2 found_3 found_4 found_5 found_6 found_7 found_8 found_9 found_10 found_11 found_12 found_13 found_14 aerosol_layers_not_searched
Rel 33 GLAS Binary Data DS_UTCTime_4s
i4_aer_uf INTEGER_1
(UNLIMITED, 5)
Layer Height Flag
(NOT_SET)
NOT_SET use flag at 1 per 4 sec: value 0 = no saturated bins present in layer; value 1 = saturated bins present in layer and replaced with 1064 data; value 2 = saturated bins present in layer and not replaced with 1064 data

flag values flag_meanings
0, 1, 2 no_saturated_bins_in_layer saturated_bins_present_in_layer_and_replaced_with_1064data saturated_bins_present_in_layer_and_not_replaced_with_1064data
Rel 33 GLAS Binary Data DS_UTCTime_4s
i_LRpbl_qf INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET quality flag at 1 per 4 sec: value 0 = PBL was searched for, but not detected; values 1 to 13 = increasing goodness; value 14 = bad; value 15 = PBL not searched for

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 LRpbl_not_detected good_1 good_2 good_3 good_4 good_5 good_6 good_7 good_8 good_9 good_10 good_11 good_12 good_13 bad LRpbl_not_searched
Rel 33 GLAS Binary Data DS_UTCTime_4s
i_LRpbl_uf INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET use flag at 1 per 4 sec: value 0 = no saturated bins present in layer; value 1 = saturated bins present in layer and replaced with 1064 data; value 2 = saturated bins present in layer and not replaced with 1064 data

flag values flag_meanings
0, 1, 2 no_saturated_bins_in_layer saturated_bins_present_in_layer_and_replaced_with_1064data saturated_bins_present_in_layer_and_not_replaced_with_1064data
Rel 33 GLAS Binary Data DS_UTCTime_4s
i_LRpbl_ccf INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET clear/cloudy flag at 1 per 4 sec: value 0 = clear; value 1 = cloudy

flag values flag_meanings
0, 1 clear cloudy
Rel 33 GLAS Binary Data DS_UTCTime_4s
i20_aer_qf INTEGER_1
(UNLIMITED, 3)
Layer Height Flag
(NOT_SET)
NOT_SET quality flag at 1 per 20 sec: value 0 = aerosol layers were searched for, but not detected; values 1 to 13 = increasing goodness; value 14 = bad; value 15 = upper (>20 km) aerosol layers were not searched for

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 aerosol_layers_not_detected good_1 good_2 good_3 good_4 good_5 good_6 good_7 good_8 good_9 good_10 good_11 good_12 good_13 bad upper_aerosol_layers_not_searched
Rel 33 GLAS Binary Data DS_UTCTime_4s
i20_aer_af INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET availability flag at 1 per 20 sec: Contains the number of aerosol layers found above 20 km from a 20 second average of the data. Value 0 = aerosol layers were searched for, but not detected; value 15 = aerosol layers were not searched for.

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 aerosol_layers_not_detected found_1 found_2 found_3 found_4 found_5 found_6 found_7 found_8 found_9 found_10 found_11 found_12 found_13 found_14 aerosol_layers_not_searched
Rel 33 GLAS Binary Data DS_UTCTime_4s
i20_aer_uf INTEGER_1
(UNLIMITED, 3)
Layer Height Flag
(NOT_SET)
NOT_SET use flag at 1 per 20 sec: value 0 = no saturated bins present in layer; value 1 = saturated bins present in layer and replaced with 1064 data; value 2 = saturated bins present in layer and not replaced with 1064 data

flag values flag_meanings
0, 1, 2 no_saturated_bins_in_layer saturated_bins_present_in_layer_and_replaced_with_1064data saturated_bins_present_in_layer_and_not_replaced_with_1064data
Rel 33 GLAS Binary Data DS_UTCTime_4s

Group: Data_4s/PBL

This group contains the 4 second PBL-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r_LRpbl_pct REAL
(UNLIMITED)
Percentage of Saturated Bins in Low Resolution PBL Layer at 532 nm
(NOT_SET)
NOT_SET Percentage of Saturated Bins in Low Resolution PBL Layer at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_PBL_LR_pres REAL
(UNLIMITED)
Pressure of Low Resolution Planetary Boundary Layer Top at 532 nm
(NOT_SET)
hPa Pressure of Low Resolution Planetary Boundary Layer Top at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_PBL_LR_relh REAL
(UNLIMITED)
Relative Humidity of Low Resolution Planetary Boundary Layer Top at 532 nm
(NOT_SET)
percent Relative Humidity of Low Resolution Planetary Boundary Layer Top at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_PBL_LR_temp REAL
(UNLIMITED)
Temperature of Low Resolution Planetary Boundary Layer Top at 532 nm
(NOT_SET)
degree Celsius Temperature of Low Resolution Planetary Boundary Layer Top at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_LRpbl_grd REAL
(UNLIMITED)
Ground Detection for Low Res PBL at 532 nm
(NOT_SET)
meters The height above the reference ellipsoid of the ground used by the low res PBL processing algorithms. Rel 33 GLAS Binary Data DS_UTCTime_4s
r_LRpbl_ht REAL
(UNLIMITED)
Low Resolution PBL Height at 532 nm
(NOT_SET)
meters Low resolution height of the planetary boundary layer, as derived from the aerosol structure; the low resolution data is averaged over 4 seconds. Rel 33 GLAS Binary Data DS_UTCTime_4s

Group: Data_4s/Aerosol_1064

This group contains the 1064 aerosol-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r_Aer_ir_bot REAL
(UNLIMITED, 2)
Elevation of Bottom of Aerosol Layers Detected in 1064 nm
(NOT_SET)
meters Elevation of Bottom of Aerosol Layers Detected in 1064 nm. Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_top REAL
(UNLIMITED, 2)
Elevation of Top of Aerosol Layers Detected in 1064 nm
(NOT_SET)
meters Elevation of Top of Aerosol Layers detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_bot_pres REAL
(UNLIMITED, 2)
Pressure of Bottom of Aerosol Layers Detected in 1064 nm
(NOT_SET)
hPa Pressure of Bottom of Aerosol Layers Detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_bot_relh REAL
(UNLIMITED, 2)
Relative Humidity of Bottom of Aerosol Layers Detected in 1064 nm
(NOT_SET)
percent Relative Humidity of Bottom of Aerosol Layers Detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_bot_temp REAL
(UNLIMITED, 2)
Temperature of Bottom of Aerosol Layers Detected in 1064 nm
(NOT_SET)
degree Celsius Temperature of Bottom of Aerosol Layers Detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_top_pres REAL
(UNLIMITED, 2)
Pressure of Top of Aerosol Layers Detected in 1064 nm
(NOT_SET)
hPa Pressure of Top of Aerosol Layers Detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_top_relh REAL
(UNLIMITED, 2)
Relative Humidity of Top of Aerosol Layers Detected in 1064 nm
(NOT_SET)
percent Relative Humidity of Top of Aerosol Layers Detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_ir_top_temp REAL
(UNLIMITED, 2)
Temperature of Top of Aerosol Layers Detected in 1064 nm
(NOT_SET)
degree Celsius Temperature of Top of Aerosol Layers Detected in 1064 nm Rel 33 GLAS Binary Data DS_UTCTime_4s

Group: Data_4s/Aerosol_532_above20

This group contains the 532 aerosol above 20km related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r20_aer_bot REAL
(UNLIMITED, 3)
20-40 KM Aerosol Layer Bottom at 532 nm
(NOT_SET)
meters The aerosol layer bottoms (20 - 40 KM in atmosphere) for up to 3 layers at 1 per 4 sec. Rel 33 GLAS Binary Data DS_UTCTime_4s
r20_aer_top REAL
(UNLIMITED, 3)
20-40 KM Aerosol Layer Top at 532 nm
(NOT_SET)
meters The aerosol layer tops (20 - 40 KM in atmosphere) for up to 3 layers at 1 per 4 sec. Rel 33 GLAS Binary Data DS_UTCTime_4s
r20_aer_pct REAL
(UNLIMITED, 3)
Percentage of Saturated Bins in 20-40 KM Aerosol Layers at 532 nm
(NOT_SET)
NOT_SET Percentage of Saturated Bins in 20-40 KM Aerosol Layers at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_bot_a20_pres REAL
(UNLIMITED, 3)
Pressure of Bottom of Aerosol Layers Above 20km of Atmosphere at 532 nm
(NOT_SET)
hPa Pressure of Bottom of Aerosol Layers Above 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_bot_a20_relh REAL
(UNLIMITED, 3)
Relative Humidity of Bottom of Aerosol Layers Above 20km of Atmosphere at 532 nm
(NOT_SET)
percent Relative Humidity of Bottom of Aerosol Layers Above 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_bot_a20_temp REAL
(UNLIMITED, 3)
Temperature of Bottom of Aerosol Layers Above 20km of Atmosphere at 532 nm
(NOT_SET)
degree Celsius Temperature of Bottom of Aerosol Layers Above 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_top_a20_pres REAL
(UNLIMITED, 3)
Pressure of Top of Aerosol Layers Above 20km of Atmosphere at 532 nm
(NOT_SET)
hPa Pressure of Top of Aerosol Layers Above 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_top_a20_relh REAL
(UNLIMITED, 3)
Relative Humidity of Top of Aerosol Layers Above 20km of Atmosphere at 532 nm
(NOT_SET)
percent Relative Humidity of Top of Aerosol Layers Above 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_top_a20_temp REAL
(UNLIMITED, 3)
Temperature of Top oof Aerosol Layers Above 20km of Atmosphere at 532 nm
(NOT_SET)
degree Celsius Temperature of Top oof Aerosol Layers Above 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s

Group: Data_4s/Aerosol_532_below20

This group contains the 532 aerosol below 20km-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
r4_aer_bot REAL
(UNLIMITED, 5)
Below 20 KM Aerosol Layer Bottom at 532 nm
(NOT_SET)
meters The aerosol layer bottoms (below 20 KM in atmosphere) for up to 5 layers at 1 per 4 sec. Rel 33 GLAS Binary Data DS_UTCTime_4s
r4_aer_top REAL
(UNLIMITED, 5)
Below 20 KM Aerosol Layer Top at 532 nm
(NOT_SET)
meters The aerosol layer tops (below 20 KM in atmosphere) for up to 5 layers at 1 per 4 sec. Rel 33 GLAS Binary Data DS_UTCTime_4s
r4_aer_pct REAL
(UNLIMITED, 5)
Percentage of Saturated Bins in Below 20 KM Aerosol Layers at 532 nm
(NOT_SET)
NOT_SET Percentage of Saturated Bins in Below 20 KM Aerosol Layers at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_bot_b20_pres REAL
(UNLIMITED, 5)
Pressure of Bottom of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm
(NOT_SET)
hPa Pressure of Bottom of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_bot_b20_relh REAL
(UNLIMITED, 5)
Relative Humidity of Bottom of Aerosol Layers in Bottom 20km of Atm at 532 nm
(NOT_SET)
percent Relative Humidity of Bottom of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_bot_b20_temp REAL
(UNLIMITED, 5)
Temperature of Bottom of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm
(NOT_SET)
degree Celsius Temperature of Bottom of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_top_b20_pres REAL
(UNLIMITED, 5)
Pressure of Top of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm
(NOT_SET)
hPa Pressure of Top of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_top_b20_relh REAL
(UNLIMITED, 5)
Relative Humidity of Top of Aerosol Layers in Bottom 20km of Atm at 532 nm
(NOT_SET)
percent Relative Humidity of Top of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s
r_Aer_top_b20_temp REAL
(UNLIMITED, 5)
Temperature of Top of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm
(NOT_SET)
degree Celsius Temperature of Top of Aerosol Layers in Bottom 20km of Atmosphere at 532 nm Rel 33 GLAS Binary Data DS_UTCTime_4s


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

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

Group: Data_1HZ/Geolocation

This group contains information relating to the GLAS campaigns.

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

Group: Data_1HZ/PBL

This group contains information relating to the PBL.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
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_Total_CloudCov REAL
(UNLIMITED)
Total Cloud Cover
(NOT_SET)
percent Total Cloud Cover 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
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

Group: Data_1HZ/Geophysical

This group contains geophysical parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
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)
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

Group: Data_1HZ/Quality

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

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
orbit_pred_flg INTEGER_1
(UNLIMITED)
POD flag (Orbit Flag)
(NOT_SET)
NOT_SET Predicted or precision orbit;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
att_offnadir_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(NOT_SET)
NOT_SET Off-nadir angle; 0=off-nadir angle within limits;1=large off-nadir angle

flag values flag_meanings
0, 1 off-nadir_angle_within_limits large_off-nadir_angle
Rel 33 GLAS Binary Data DS_UTCTime_1
att_oceansw_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(NOT_SET)
NOT_SET Ocean sweep;0=non-ocean sweep, 1=within time frame of ocean sweep

flag values flag_meanings
0, 1 non-ocean_sweep ocean_sweep
Rel 33 GLAS Binary Data DS_UTCTime_1
att_pointing_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(NOT_SET)
NOT_SET Target of opportunity off-pointing;0=not within target of opportunity off-pointing 1=within time of target of opportunity off-pointing

flag values flag_meanings
0, 1 not_TOO TOO
Rel 33 GLAS Binary Data DS_UTCTime_1
att_steering_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(NOT_SET)
NOT_SET Steering to reference track;0=not within target of opportunity off-pointing 1=within time of target of opportunity off-pointing

flag values flag_meanings
0, 1 not_TOO TOO
Rel 33 GLAS Binary Data DS_UTCTime_1
att_actual_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(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

flag values flag_meanings
0, 1 actual ignore
Rel 33 GLAS Binary Data DS_UTCTime_1
att_ist_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(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

flag values flag_meanings
0, 1, 2, 3 IST_data_good IST_missing IST_noisy IST_noisy_and_missing
Rel 33 GLAS Binary Data DS_UTCTime_1
att_gyro_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(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

flag values flag_meanings
0, 1, 2, 3 GYRO_data_good GYRO_data_missing GYRO_data_noisy GYRO_data_noisy_and_missing
Rel 33 GLAS Binary Data DS_UTCTime_1
att_lrs_flg INTEGER_1
(UNLIMITED)
Attitude Flag 1
(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

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7 LRS_data_good LRS_data_good_but_no_star_data LRS_data_good_but_no_laser_data LRS_data_good_but_no_CRS_data LRS_data_good_but_only_some_CRS_data LRS_data_good_but_only_some_laser_data LRS_data_good_but_only_some_star_data some_missing_LRS_data
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.

flag values flag_meanings
0, 1 good unsuitable
Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Flags

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

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
i_Aer_ir_layflg INTEGER_1
(UNLIMITED)
Layer Flag for 1064 Aerosol
(NOT_SET)
NOT_SET Number of 1064 layers of aerosol saved

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 none_saved 1_saved 2_saved 3_saved 4_saved 5_saved 6_saved 7_saved 8_saved 9_saved 10_saved 11_saved 12_saved 13_saved 14_saved 15_saved
Rel 33 GLAS Binary Data DS_UTCTime_1
surf_ld_flg INTEGER_1
(UNLIMITED)
Region Type
(NOT_SET)
NOT_SET Region type;0=no Land;1=Land

flag values flag_meanings
0, 1 no_land 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

flag values flag_meanings
0, 1 no_seaice seaice
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

flag values flag_meanings
0, 1 no_ocean 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

flag values flag_meanings
0, 1 no_icesheet icesheet
Rel 33 GLAS Binary Data DS_UTCTime_1

Group: Data_1HZ/Angle

This group contains reflectivity information.

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


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

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
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

Group: Data_5HZ/Geolocation

This group contains information relating to the GLAS campaign geolocation.

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

Group: Data_5HZ/PBL

This group contains the PBL-related parameters.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
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_5
r_HRpbl_grd REAL
(UNLIMITED)
Ground Detection for High Res PBL
(NOT_SET)
meters The height above the reference ellipsoid of the ground used by the high res PBL processing algorithms. Rel 33 GLAS Binary Data DS_UTCTime_5
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_5
r_HRpbl_ht REAL
(UNLIMITED)
High Resolution PBL Height at 532 nm
(NOT_SET)
meters High resolution height of the planetary boundary layer, as derived from the aerosol structure; the high resolution data occurs at the rate of 5 per second. Rel 33 GLAS Binary Data DS_UTCTime_5

Group: Data_5HZ/Flags

This group contains flags at 5 per sec.

Label Datatype
(Dimensions)
long_name
(standard_name)
units description source coordinates
i_HRpbl_qf INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET quality flag at 5Hz for 4 sec: value 0 = PBL was searched for, but not detected; values 1 to 13 = increasing goodness; value 14 = bad; value 15 = PBL not searched for

flag values flag_meanings
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 HRpbl_not_detected good_1 good_2 good_3 good_4 good_5 good_6 good_7 good_8 good_9 good_10 good_11 good_12 good_13 bad HRpbl_not_searched
Rel 33 GLAS Binary Data DS_UTCTime_5
i_HRpbl_uf INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET use flag at 5Hz for 4 sec: value 0 = no saturated bins present in layer; value 1 = saturated bins present in layer and replaced with 1064 data; value 2 = saturated bins present in layer and not replaced with 1064 data

flag values flag_meanings
0, 1, 2 no_saturated_bins_in_layer saturated_bins_present_in_layer_and_replaced_with_1064data saturated_bins_present_in_layer_and_not_replaced_with_1064data
Rel 33 GLAS Binary Data DS_UTCTime_5
i_HRpbl_ccf INTEGER_1
(UNLIMITED)
Layer Height Flag
(NOT_SET)
NOT_SET clear/cloudy flag at 5Hz for 4 sec: value 0 = clear; value 1 = cloudy

flag values flag_meanings
0, 1 clear cloudy
Rel 33 GLAS Binary Data DS_UTCTime_5

/ANCILLARY_DATA

/ANCILLARY_DATA

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, PercentHighRate, PercentMediumRate, PercentLowRate, PercentFullRate, 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=gla08_test.ctl

/METADATA/COLLECTIONMETADATA

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 GLAH08
LongName GLAS/ICESat L2 Global Planetary Boundary Layer & Elevated Aerosol Layers (HDF5)
CollectionDescription The level 2 planetary boundary layer and elevated aerosol layer height data will be 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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes

Attribute Example Value
PercentGroundHit AdditionalAttributesContainer
PercentHighRate AdditionalAttributesContainer
PercentMediumRate AdditionalAttributesContainer
Track AdditionalAttributesContainer
Instrument_State AdditionalAttributesContainer
PercentLowRate AdditionalAttributesContainer
PercentFullRate 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

/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/PercentFullRate

Attribute Example Value
AdditionalAttributeDatatype float
AdditionalAttributeDescription Percent of data for this granule that atmospheric parameters are provided at 40 Hz data rate.
AdditionalAttributeName PercentFullRate
ParameterUnitsofMeasurement Percent
ParameterRangeBegin 0.0
ParameterRangeEnd 100.0
ParameterValueAccuracy 1
ParameterMeasurementResolution 1

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/PercentGroundHit

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/PercentHighRate

Attribute Example Value
AdditionalAttributeDatatype float
AdditionalAttributeDescription Percent of data for this granule that atmospheric parameters are provided at 5 Hz data rate.
AdditionalAttributeName PercentHighRate
ParameterUnitsofMeasurement Percent
ParameterRangeBegin 0.0
ParameterRangeEnd 100.0
ParameterValueAccuracy 1
ParameterMeasurementResolution 1

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/PercentLowRate

Attribute Example Value
AdditionalAttributeDatatype float
AdditionalAttributeDescription Percent of data for this granule that atmospheric parameters are provided at 0.25 Hz data rate.
AdditionalAttributeName PercentLowRate
ParameterUnitsofMeasurement Percent
ParameterRangeBegin 0.0
ParameterRangeEnd 100.0
ParameterValueAccuracy 1
ParameterMeasurementResolution 1

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/PercentMediumRate

Attribute Example Value
AdditionalAttributeDatatype float
AdditionalAttributeDescription Percent of data for this granule that atmospheric parameters are provided at 1 Hz data rate.
AdditionalAttributeName PercentMediumRate
ParameterUnitsofMeasurement Percent
ParameterRangeBegin 0.0
ParameterRangeEnd 100.0
ParameterValueAccuracy 1
ParameterMeasurementResolution 1

/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/SP_ICE_GLAS_EndBlock

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/SP_ICE_GLAS_StartBlock

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/SP_ICE_PATH_NO

Attribute Example Value
AdditionalAttributeDatatype int
AdditionalAttributeDescription Number which represents the GLAS path number.
AdditionalAttributeName SP_ICE_PATH_NO
ParameterRangeBegin 1
ParameterRangeEnd 32768

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Timing_Bias

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Timing_Bias_Date

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

/METADATA/COLLECTIONMETADATA/AdditionalAttributes/Timing_Bias_Time

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

/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/DATA201

/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 Granule contains fourteen orbits of data; nominally 24-hour period.

/METADATA/COLLECTIONMETADATA/CollectionAssociation

Attribute Example Value
GLA00 CollectionAssociationContainer
GLAH02 CollectionAssociationContainer
GLAH07 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/GLAH02

Attribute Example Value
CollectionType Science Associated
CollectionUse Level 1A atmospheric data product file containing: normalized lidar signals.
ShortName GLAH02
VersionID 33

/METADATA/COLLECTIONMETADATA/CollectionAssociation/GLAH07

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

Attribute Example Value
Atmosphere DisciplineTopicParametersContainer

/METADATA/COLLECTIONMETADATA/DisciplineTopicParameters/Atmosphere

Attribute Example Value
ECSDisciplineKeyword Earth Science
ECSTopicKeyword Atmosphere
ECSTermKeyword Aerosols
ECSVariableKeyword Aerosol Particle Properties

/METADATA/COLLECTIONMETADATA/DisciplineTopicParameters/Atmosphere/ECSParameter

Attribute Example Value
ECSParameterKeyword Aerosol Layer Height

/METADATA/COLLECTIONMETADATA/ECSCollection

Attribute Example Value
RevisionDate 2012-06-25
SuggestedUsage GLAH08 contains the heights of planetary boundary layer (PBL) and aerosol layers for researchers. Elevated aerosol layer height data consist of top and bottom heights for up to 5 layers below 20 km and for up to 3 layers above 20 km. Each GLAH08 file was created from an equivalent GLA08 binary file. The data used to create the GLAH08 values are contained in the equivalent GLAHxx files for the GLAxx files. See the provenance metadata for the creation of the GLA08.
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/InstrumentCharacteristic

Attribute Example Value
SwathWidth InstrumentCharacteristicContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/Instrument/GLAS/InstrumentCharacteristic/SwathWidth

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

/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/Platform/ICESat/PlatformCharacteristic

Attribute Example Value
OrbitInclination PlatformCharacteristicContainer
OrbitalPeriod PlatformCharacteristicContainer

/METADATA/COLLECTIONMETADATA/Platform/ICESat/PlatformCharacteristic/OrbitInclination

Attribute Example Value
PlatformCharacteristicName OrbitInclination
PlatformCharacteristicDescription Angle between the orbit plane and the Earth's equatorial plane
PlatformCharacteristicDataType float
PlatformCharacteristicUnit Degrees
PlatformCharacteristicValue 94.0

/METADATA/COLLECTIONMETADATA/Platform/ICESat/PlatformCharacteristic/OrbitalPeriod

Attribute Example Value
PlatformCharacteristicName OrbitalPeriod
PlatformCharacteristicDescription Orbital period in decimal minutes.
PlatformCharacteristicDataType float
PlatformCharacteristicUnit Minutes
PlatformCharacteristicValue 96.7

/METADATA/COLLECTIONMETADATA/ProcessingLevel

Attribute Example Value
ProcessingLevelDescription Geophysical Quantities at the sensor resolution or geolocated
ProcessingLevelID 2

/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 1.1
ShortName GLAH08
VersionID 33
RangeBeginningTime 01:51:38
RangeEndingTime 00:24:45
RangeBeginningDate 2003-11-18
RangeEndingDate 2003-11-19

/METADATA/INVENTORYMETADATA/ECSDataGranule

Attribute Example Value
ReprocessingPlanned no further update anticipated
ReprocessingActual reprocessed
LocalGranuleID GLAH08_633_2103_002_0407_0_01_0001.H5
ProductionDateTime 2013-02-08T11:56:22
LocalVersionID 33

/METADATA/INVENTORYMETADATA/InputGranule

Attribute Example Value
InputPointer gla08_test.ctl, tai-utc.dat, GLA08_633_2103_002_0407_0_01_0001.P0310, DsESDTGlGLAH08.033.desc

/METADATA/INVENTORYMETADATA/MeasuredParameter

Attribute Example Value
ParameterName Aerosol_Layer_Heights, Planetary_Boundary_Layer

/METADATA/INVENTORYMETADATA/OrbitCalculatedSpatialDomain

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

/METADATA/INVENTORYMETADATA/ProductSpecificMetadata

Attribute Example Value
PercentGroundHit 0
PercentHighRate 0
PercentMediumRate 0
Track 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421
Instrument_State 373338
PercentLowRate 0
PercentFullRate 0
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/DATA201
identifier_file_uuid 599740C3-F062-4F49-A756-8A0DA37BC95B
identifier_product_doi_authority http://dx.doi.org

/METADATA/PROVENANCE

/METADATA/PROVENANCE/STEP_1

Attribute Example Value
ProcessDateTime 2011-06-20T15:27:20

/METADATA/PROVENANCE/STEP_1/ProcessAgent

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.

/METADATA/PROVENANCE/STEP_1/ProcessInput

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

/METADATA/PROVENANCE/STEP_1/ProcessOutput

Attribute Example Value
Name GLA08_633_2103_002_0407_0_01_0001.DAT
Type GLA08
Version 633

/METADATA/PROVENANCE/STEP_2

Attribute Example Value
ProcessDateTime 2013-02-08T11:56:22.000000Z

/METADATA/PROVENANCE/STEP_2/ProcessAgent

Attribute Example Value
Name GLA08_h5_convert
Type Data_Reformat
Version Version 1.1 (February 2013)
Description GLA08 Conversion PGE

/METADATA/PROVENANCE/STEP_2/ProcessInput

Attribute Example Value
Name ./gla08_test.ctl, ../../data/tai-utc.dat, in/GLA08_633_2103_002_0407_0_01_0001.P0310, ../../glas_hdf/data/esdts/DsESDTGlGLAH08.033.desc
Type IN_CNTL, IN_ANC_TAIUTC, IN_GLA08, IN_ESDT
Version 0, 0, 1, 1

/METADATA/PROVENANCE/STEP_2/ProcessOutput

Attribute Example Value
Name out/GLAH08_633_2103_002_0407_0_01_0001.H5
Type OUT_GLAH08
Version 1
UUID 599740C3-F062-4F49-A756-8A0DA37BC95B
DOI 10.5067/ICESAT/GLAS/DATA201

Page last updated: 02/21/2013

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