Group: / | ||||
h5es_id | (Attribute) | 3 | ||
granule_type | (Attribute) | mabel_l2a | ||
short_name | (Attribute) | mabel_l2a | ||
level | (Attribute) | L2A | ||
description | (Attribute) | Geolocated photons. | ||
citation | (Attribute) | The data used in this study were produced by the ICESat-2 Science Project Office (PSO) at NASA/GSFC. The data archive site is the PSO. | ||
comment | (Attribute) | Data granules consist of approximately 1 minute of HDF5 data and include corrected and geolocated MABEL elevation data (in meters) measuring the elevation of each detected photon within a range window about the DEM. All measured parameters are in science units. | ||
contributor_name | (Attribute) | William B Cook (william.b.cook@nasa.gov), Thomas E Neumann (thomas.neumann@nasa.gov), Thorsten Markus (thorsten.markus@nasa.gov), David W Hancock III (david.w.hancock@nasa.gov), Jeffrey E Lee (jeffrey.e.lee@nasa.gov) | ||
contributor_role | (Attribute) | Instrument Engineer, Investigator, Principle Investigator, Data Producer, Data Producer | ||
Conventions | (Attribute) | CF-1.6 | ||
creator_email | (Attribute) | David.W.Hancock@nasa.gov | ||
creator_name | (Attribute) | ICESat-2 Science Investigator-led Processing System (ISIPS) | ||
date_created | (Attribute) | SET_BY_PGE | ||
date_type | (Attribute) | J2000 | ||
dtu10_mss_citation | (Attribute) | Andersen O. B, Knudsen P (2009) The DNSC08 mean sea surface and mean dynamic topography. J. Geophys. Res., 114, C11, doi:10.1029/2008JC005179, 2009. Andersen, O. B., The DTU10 Gravity field and Mean sea surface (2010) Second international symposium of the gravity field of the Earth (IGFS2), Fairbanks, Alaska. | ||
dtu10_mss_source | (Attribute) | DTU10MSS_1min.mss; downloaded June 22, 2012 from http://www.space.dtu.dk/English/Research/Scientific_data_and_models/downloaddata.aspx | ||
egm2008_citation | (Attribute) | Pavlis, N.K., S.A. Holmes, S.C. Kenyon, and J.K. Factor, An Earth Gravitational Model to Degree 2160: EGM2008, presented at the 2008 General Assembly of the European Geosciences Union, Vienna, Austria, April 13-18, 2008. | ||
egm2008_source | (Attribute) | Und_min1x1_egm2008_isw=82_WGS84_TideFree.gz downloaded from http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008/egm08_wgs84.html This file contains POINT values of geoid undulations with respect to WGS 84 in meters, on a 1x1 min global grid (equi-angular spacing in terms of WGS 84 geodetic coordinates), computed from EGM2008 to degree 2190 and using the conversion expansion to degree 2160. The file is global, and contains valid values for ALL 1x1 cells, regardless whether they are located over land or over ocean. The geoid undulations refer to the Tide-Free system, as far as the Permanent Tide is concerned. | ||
egm96_citation | (Attribute) | The Development of the Joint NASA GSFC and NIMA Geopotential Model EGM96, F. G. Lemoine, S. C. Kenyon, J. K. Factor, R.G. Trimmer, N. K. Pavlis, D. S. Chinn, C. M. Cox, S. M. Klosko, S. B. Luthcke, M. H. Torrence, Y. M. Wang, R. G. Williamson, E. C. Pavlis, R. H. Rapp and T. R. Olson, NASA Goddard Space Flight Center, Greenbelt, Maryland, 20771 USA, July 1998. | ||
egm96_source | (Attribute) | June 15, 2005; downloaded from http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/egm96.html | ||
featureType | (Attribute) | trajectory | ||
flight_location | (Attribute) | SET_BY_PGE | ||
flight_number | (Attribute) | SET_BY_PGE | ||
geos5_fp_it_citation | (Attribute) | Lucchesi, R., 2013: File Specification for GEOS-5 FP-IT. GMAO Office Note No. 2 (Version 1.2), 60 pp, available from http://gmao.gsfc.nasa.gov/pubs/office_notes. | ||
geos5_fp_it_source | (Attribute) | Global Modeling and Assimilation Office (GMAO) at NASA Goddard Space Flight Center | ||
geospatial_lat_max | (Attribute) | 0.0000000000000000 | ||
geospatial_lat_min | (Attribute) | 0.0000000000000000 | ||
geospatial_lat_units | (Attribute) | degrees_north | ||
geospatial_lon_max | (Attribute) | 0.0000000000000000 | ||
geospatial_lon_min | (Attribute) | 0.0000000000000000 | ||
geospatial_lon_units | (Attribute) | degrees_east | ||
gimp_dem_citation | (Attribute) | Howat, I.M., A. Negrete, B.E. Smith, 2014, The Greenland Ice Mapping Project (GIMP) land classification and surface elevation datasets, The Cryosphere, 8, 1509-1518, doi:10.5194/tc-8-1509-2014 | ||
gimp_dem_source | (Attribute) | Version 2.1 (January 3, 2014), downloaded from link at http://bprc.osu.edu/GDG/gimpdem.php | ||
gmted_dem_citation | (Attribute) | Danielson, J.J., and Gesch, D.B., 2011, Global multi-resolution terrain elevation data 2010 (GMTED2010): U.S. Geological Survey Open-File Report 2011 1073, 26 p. http://pubs.usgs.gov/of/2011/1073/ | ||
gmted_dem_source | (Attribute) | GMTED 7.5 arc-second GEOTIFFs; downloaded from http://http://topotools.cr.usgs.gov/GMTED_viewer. | ||
hdfversion | (Attribute) | SET_BY_PGE | ||
history | (Attribute) | SET_BY_PGE | ||
identifier_file_uuid | (Attribute) | SET_BY_PGE | ||
identifier_product_doi | (Attribute) | TBD | ||
identifier_product_doi_authority | (Attribute) | http://dx.doi.org | ||
identifier_product_format_version | (Attribute) | SET_BY_PGE | ||
identifier_product_type | (Attribute) | MABEL_L2A | ||
institution | (Attribute) | National Aeronautics and Space Administration (NASA) | ||
instrument | (Attribute) | Multiple Altimeter Beam Experimental Lidar (MABEL) | ||
keywords | (Attribute) | Earth Science > Spectral/Engineering > Infrared Wavelengths > Sensor Counts > Photons | ||
keywords_vocabulary | (Attribute) | GCMD Science Keywords Version 6.0 | ||
license | (Attribute) | Data may not be reproduced or distributed without including the citation for this product included in this metadata. Data may not be distributed in an altered form without the written permission of the ICESat-2 Science Project Office at NASA/GSFC. | ||
naming_authority | (Attribute) | http://dx.doi.org | ||
platform | (Attribute) | SET_BY_PGE | ||
processing_level | (Attribute) | L2A | ||
project | (Attribute) | Multiple Altimeter Beam Experimental Lidar (MABEL) | ||
publisher_email | (Attribute) | thomas.neumann@nasa.gov | ||
publisher_name | (Attribute) | ICESat-2 Project Science Office (PSO) at NASA/GSFC. | ||
publisher_url | (Attribute) | http://icesat.gsfc.nasa.gov/icesat2/data/mabel/data/browse/index.html | ||
references | (Attribute) | http://icesat.gsfc.nasa.gov/icesat2/data/mabel/mabel_docs.php (Documentation set for this product at the ICESat-2 Website), http://icesat.gsfc.nasa.gov/icesat2/data/mabel/data/browse/index.html (Browse data for MABEL at the ICESat-2 Website) | ||
source | (Attribute) | Aircraft measurements | ||
spatial_coverage_type | (Attribute) | Horizontal | ||
standard_name_vocabulary | (Attribute) | CF-1.6 | ||
summary | (Attribute) | The PGE converts L1B ranges to geolocated photons. Each MABEL_L2A file was created from a corresponding MABEL_L1B file. The provenance metadata shows the history that created the granule. | ||
time_coverage_duration | (Attribute) | SET_BY_PGE | ||
time_coverage_end | (Attribute) | SET_BY_PGE | ||
time_coverage_start | (Attribute) | SET_BY_PGE | ||
time_type | (Attribute) | CCSDS UTC-A | ||
title | (Attribute) | MABEL L2A Geolocated Photons (HDF5) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ds_alt_histogram_bins (Contiguous Dataset) | INTEGER_4(200) | Histogram dimension scale (not_set) | counts not_set | Altimetry histogram bin index. The histogram bins increment from the top of the range window to the bottom of the range window. |
ds_atm_histogram_bins (Contiguous Dataset) | INTEGER_4(500) | Histogram dimension scale (not_set) | counts not_set | Atmosphere histogram bin index. The histogram bins increment from the top of the range window to the bottom of the range window. |
ds_statistics (Contiguous Dataset) | INTEGER_4(5) | Dimension scale for QA statistics (not_set) | counts Derived (QA) | QA statistics array index flag_values: 1, 2, 3, 4, 5 flag_meanings : number_of_points minimum maximum average standard_deviation |
Group: /ancillary_data | ||||
h5es_id | (Attribute) | 2 | ||
Description | (Attribute) | Contains information ancillary to the data product. This may include product characteristics, instrument characteristics and/or processing constants. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
control (Compact Dataset) | STRING:4096(1) | Control File (not_set) | not_set Operations | PGE-specific control file used to generate this granule. To re-use, replace breaks (BR) with linefeeds. |
data_end_gpssow (Compact Dataset) | DOUBLE(1) | Ending GPS Seconds-of-Week (not_set) | seconds Derived | GPS seconds-of-week for the last data point in the granule. (not referenced to granule_gps_epoch) |
data_end_gpsweek (Compact Dataset) | INTEGER_4(1) | Ending GPSWeek (not_set) | weeks Derived | GPS week number for the last data point in the granule. (not referenced to granule_gps_epoch) |
data_end_utc (Compact Dataset) | STRING:27(1) | End UTC (not_set) | not_set Derived | UTC (in CCSDS-A format) of the last data point within the granule. (not referenced to granule_gps_epoch) |
data_start_gpssow (Compact Dataset) | DOUBLE(1) | Starting GPS Seconds-of-Week (not_set) | seconds Derived | GPS seconds-of-week for the first data point in the granule. (not referenced to granule_gps_epoch) |
data_start_gpsweek (Compact Dataset) | INTEGER_4(1) | Starting GPSWeek (not_set) | weeks since 1980-01-06T00:00:00Z Derived | GPS week number for the first data point in the granule. (not referenced to granule_gps_epoch) |
data_start_utc (Compact Dataset) | STRING:27(1) | Actual Start UTC of Granule (not_set) | not_set Derived | UTC (in CCSDS-A format) of the first data point within the granule. (not referenced to granule_gps_epoch) |
end_latitude (Compact Dataset) | DOUBLE(1) | Ending Latitude (not_set) | degrees_north Derived | Best-available latitude (product-specific) in degrees at last data point within the granule. |
end_longitude (Compact Dataset) | DOUBLE(1) | Ending Longitude (not_set) | degrees_east Derived | Best-available longitude (product-specific) in degrees at last data point within the granule. |
granule_end_utc (Compact Dataset) | STRING:27(1) | Ending Time of Granule (not_set) | not_set Derived | Requested end time (UTC CCSDS-A) of this granule. |
granule_gps_epoch (Contiguous Dataset) | DOUBLE(1) | Elapsed GPS Seconds (not_set) | seconds since 1980-01-06T00:00:00.000000Z Derived | Number of GPS seconds since GPS epoch (1980-01-06T00:00:00.000000Z UTC) corresponding to the requested start time of the granule. Add this value to the data [delta_time] parameter to compute [gps_seconds] for each data point. |
granule_start_utc (Compact Dataset) | STRING:27(1) | Requested Start Time of Granule (not_set) | not_set Derived | Requested start time (UTC CCSDS-A) of this granule. |
release (Compact Dataset) | STRING:80(1) | Release Number (not_set) | not_set Operations | This identifies the release number of the granule. The release number is incremented when the software or ancillary data used to create the granule has been changed. |
start_latitude (Compact Dataset) | DOUBLE(1) | Starting Latitude (not_set) | degrees_north Derived | Best-available latitude (product-specific) in degrees at first data point within the granule (corresponds to data_start_utc). |
start_longitude (Compact Dataset) | DOUBLE(1) | Starting Longitude (not_set) | degrees_east Derived | Best-available longitude (product-specific) in degrees at first data point within the granule (corresponds to data_start_utc). |
version (Compact Dataset) | STRING:80(1) | Version (not_set) | counts Operations | This identifies the version number of this granule within the release. It is a sequential number corresponding to the number of times the granule has been reprocessed for the current release. |
Group: /ancillary_data/general | ||||
h5es_id | (Attribute) | 3 | ||
Description | (Attribute) | Contains general ancillary parameters. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
apply_atm_delay (Compact Dataset) | INTEGER_4(1) | Apply Atmosphere Delay Flag (not_set) | counts MABEL Detailed Design Doc | Indicates application of atmosphere delay correction to photon heights; 0=not applied, 1=applied. flag_values: 0, 1 flag_meanings : atm_delay_not_applied atm_delay_applied |
mab_clock_freq (Compact Dataset) | FLOAT(1) | Clock Frequency (not_set) | hertz MABEL Engineering Docs | Nominal MABEL clock frequency. |
mab_fcell_conv (Compact Dataset) | FLOAT(1) | Fractional Cell Conversion Factor (not_set) | ns MABEL Engineering Docs | MABEL fractional cell conversion factor. |
mab_range_conv (Compact Dataset) | FLOAT(1) | Range Conversion Factor (not_set) | ns MABEL Engineering Docs | MABEL range conversion factor. |
Group: /ancillary_data/histograms | ||||
h5es_id | (Attribute) | 43 | ||
Description | (Attribute) | Contains ancillary data used during the derivation of histogram data. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
alt_hist_bin_bot_off (Compact Dataset) | FLOAT(1) | Altimetry histogram Bin Bottom offset (not_set) | meters MABEL Detailed Design Doc | Meters subtracted from the DEM height to define the bottom of the noise computation range window. |
alt_hist_bin_size (Compact Dataset) | FLOAT(1) | Altimery histogram Bin Size (not_set) | meters MABEL Detailed Design Doc | Size is meters of the altimetry histogram bins. |
alt_hist_bin_top_off (Compact Dataset) | FLOAT(1) | Altimetry histogram Bin Top Offset (not_set) | meters MABEL Detailed Design Doc | Meters added to the DEM height to define the top of the altimetry histogram range window. |
atm_hist_bin_bot_off (Compact Dataset) | FLOAT(1) | Atmosphere histogram Bin Bottom Offset (not_set) | meters MABEL Detailed Design Doc | Meters subtracted from the DEM height to define the bottom of the atmosphere histogram range window. |
atm_hist_bin_size (Compact Dataset) | FLOAT(1) | Atmosphere histogram Bin Size (not_set) | meters MABEL Detailed Design Doc | Size in meters of the atmosphere histogram bins. |
atm_hist_bin_top_off (Compact Dataset) | FLOAT(1) | Atmosphere histogram Bin Top Offset (not_set) | meters MABEL Detailed Design Doc | Meters added to the DEM height to define the top of the atmosphere histogram range window. |
Group: /ancillary_data/photon_range_window | ||||
h5es_id | (Attribute) | 44 | ||
Description | (Attribute) | Contains ancillary data used to define the range windows for photons, noise, DEM and mean sea surface. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
dem_range_bot_off (Compact Dataset) | FLOAT(1) | DEM Range bottom offset (not_set) | meters MABEL Detailed Design Doc | Meters subtracted from the DEM height to define the bottom of the photon range window. |
dem_range_top_off (Compact Dataset) | FLOAT(1) | DEM Range top offset (not_set) | meters MABEL Detailed Design Doc | Meters added to the DEM height to define the top of the photon range window. |
mss_range_bot_off (Compact Dataset) | FLOAT(1) | MSS Range bottom offset (not_set) | meters MABEL Detailed Design Doc | Meters subtracted from the MSS height to define the bottom of the photon range window. |
mss_range_top_off (Compact Dataset) | FLOAT(1) | MSS Range top offset (not_set) | meters MABEL Detailed Design Doc | Meters added to the MSS height to define the top of the photon range window. |
noise_range_bot_off (Compact Dataset) | FLOAT(1) | Noise Range bottom offset (not_set) | meters MABEL Detailed Design Doc | Meters subtracted from the DEM height to define the bottom of the noise computation range window. |
noise_range_top_off (Compact Dataset) | FLOAT(1) | Noise Range top offset (not_set) | meters MABEL Detailed Design Doc | Meters added to the DEM height to define the top of the noise computation range window. |
Group: /ancillary_data/segment_sizes | ||||
h5es_id | (Attribute) | 45 | ||
Description | (Attribute) | Contains ancillary data used to define altimetry, atmosphere and meteorological segment sizes. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
alt_seg_shots (Compact Dataset) | INTEGER_4(1) | Altimetry segment size (not_set) | counts MABEL Detailed Design Doc | Number of laser shots defining an altimetry segment. |
atm_seg_shots (Compact Dataset) | INTEGER_4(1) | Atmosphere segment size (not_set) | counts MABEL Detailed Design Doc | Number of laser shots defining an atmosphere segment. |
Group: /ancillary_data/signal_finding | ||||
h5es_id | (Attribute) | 65 | ||
Description | (Attribute) | Contains ancillary data used by the signal finding routine described in the ICESat-2 Global Geolocated Photons ATBD. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
alpha_max (Compact Dataset) | FLOAT(1) | Maximum Slope (not_set) | radians ICESat 2 Global Geolocated Photons ATBD | Maximum slope allowed for slant histogram; if larger than this then dont attempt to fill gap. ATBD label [alpha]max |
deslw (Compact Dataset) | FLOAT(1) | Height Window (not_set) | meters ICESat 2 Global Geolocated Photons ATBD | Half the value of the height window used for slant histogramming relative to the surface defined by the linear fit to the surrounding photons at slope, [alpha]. ATBD label: [delta]Eslw |
dt_max (Compact Dataset) | FLOAT(1) | Max Time Interval (not_set) | seconds ICESat 2 Global Geolocated Photons ATBD | Maximum time interval over which to select photons to histogram. ATBD label: [delta]t[sub]max |
dt_min (Compact Dataset) | FLOAT(1) | Min Time Interval (not_set) | seconds ICESat 2 Global Geolocated Photons ATBD | Minimum time interval over which to select photons to histogram. ATBD label: [delta]t[sub]min |
dtime (Chunked Dataset) | FLOAT(UNLIMITED) | time increment (not_set) | seconds GblGeoPhotons ATBD | Time increment at which to step through the photon cloud in a granule. Histograms will be formed at each time interval to identify signal photon events. |
dz_max1 (Compact Dataset) | FLOAT(1) | Max Binsize1 (not_set) | meters ICESat 2 Global Geolocated Photons ATBD | Maximum height bin size for histogramming for first sweep . ATBD label: [delta]z[sub]max1 |
dz_max2 (Compact Dataset) | FLOAT(1) | Max Binsize2 (not_set) | meters ICESat 2 Global Geolocated Photons ATBD | Maximum height bin size for histogramming for second sweep. ATBD label: [delta]z[sub]max2 |
dz_min (Compact Dataset) | FLOAT(1) | Min Binsize (not_set) | meters ICESat 2 Global Geolocated Photons ATBD | Minimum height bin size for histogramming for first sweep. ATBD label: [delta]z[sub]min |
e_gap (Compact Dataset) | FLOAT(1) | Gapfit Multiplier (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Multiplier of [sigma]gapfit, the standard deviation of the residuals between the actual photon events used to estimate the surface across a gap, Egap, and the estimate, Egap. All photons with height > egap _ [sigma]gapfit are edited from the next iteration of calculating Egap. ATBD label: e[sub]gap |
ea (Compact Dataset) | FLOAT(1) | EA Multiplier (not_set) | meters ICESat 2 Global Geolocated Photons ATBD | Multiplier of Ha_[sigma] used to determine which bins in Ha may contain signal photon events. ATBD label: e[sub]a |
el (Compact Dataset) | FLOAT(1) | Stdev Multiplier for Fit (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Multiplier of standard deviation of linear fit to signal photons used to edit out noise during running linear fit edit. ATBD label: e[sub]l |
em (Compact Dataset) | FLOAT(1) | Stdev Multiplier for Signal (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Multiplier of standard deviation of the number of background photon events per bin used in determining if signal photons exist. ATBD label: e[sub]m |
em_multi (Compact Dataset) | FLOAT(1) | Multiplier for EM (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Multiplier of em used to determine Thsig2, threshold for singular bins. ATBD label: e[sub]m_multi |
hspan_min (Compact Dataset) | FLOAT(1) | Min Height Span (not_set) | meters ICESat 2 Global Geolocated Photons ATBD | Minimum height span for each time interval of photons with confidence flag > 0. If the height span is < htspanmin then all photons not previously selected within +/- htspanmin/2 of the median height of the signal photons selected are marked with a confidence flag of 1. ATBD label: Htspanmin |
maxiter_gap (Compact Dataset) | INTEGER_4(1) | Max Gap Iterations (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | The maximum number of iterations for calculation of Egap. ATBD label: maxiter[sub]gapfit |
min_bins (Compact Dataset) | INTEGER_4(1) | Minimum Bins (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Minimum number of bins in a histogram required for the algorithm to be able to process the histogram. ATBD label: Nbin[sub]min |
n_dz1 (Compact Dataset) | INTEGER_4(1) | Num Binsize1 Increments (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | The number of [delta]z values used for first [delta]z interval [delta]zmin and [delta]zmax1. ATBD label: n[delta]z1 |
n_dz2 (Compact Dataset) | INTEGER_4(1) | Num Binsize2 increments (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | The number of [delta]z values used for second [delta]z interval [delta]zmax1 and [delta]zmax2. ATBD label: n[delta]z2 |
n_p_min (Compact Dataset) | INTEGER_4(1) | Min Photons (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | The minimum number of photons over which to perform a linear fit to estimate the surface profile across a gap. ATBD label:Nphot[sub]min |
r (Compact Dataset) | FLOAT(1) | Ratio for Signal (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Minimum ratio of max number of photons in histogram bin to mean noise value that must exist to consider a bin a signal bin. ATBD label: R |
r2 (Compact Dataset) | FLOAT(1) | Ratio of Signal to Total (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Minimum ratio of (maximum number of photons in any one bin of contiguous signal bins)/(Maximum number of photons in largest bin) in order to accept a group of signal bins as real signal. ATBD label: R2 |
seg_time_len (Compact Dataset) | FLOAT(1) | Segment Time Interval (not_set) | seconds ICESat 2 Global Geolocated Photons ATBD | Time increment at which to step through the photon cloud Histograms will be formed at each [delta]time to identify signal photon events. ATBD label: [delta]time |
snr_low (Compact Dataset) | FLOAT(1) | SNR Low (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Signal to noise ratio below which all selected signal has low confidence. ATBD label: snrlow |
snr_med (Compact Dataset) | FLOAT(1) | SNR Med (not_set) | counts ICESat 2 Global Geolocated Photons ATBD | Signal to noise ratio above which all selected signal has high confidence. Selected signal with signal to noise ratio between snrlow and snrmed is marked as medium confidence. ATBD label: snrmed |
Group: /ancillary_data/streak_removal | ||||
h5es_id | (Attribute) | 46 | ||
Description | (Attribute) | Contains ancillary data used by the streak-removal algorithm. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
remove_streaks_1064 (Compact Dataset) | INTEGER_4(1) | 1064 streak removal flag (not_set) | counts MABEL Detailed Design Doc | Indicates activation of streak removal algorithm. |
remove_streaks_532 (Compact Dataset) | INTEGER_4(1) | 532 streak removal flag (not_set) | counts MABEL Detailed Design Doc | Indicates activation of streak removal algorithm. |
streak_m (Compact Dataset) | FLOAT(1) | Streak M (not_set) | meters MABEL Detailed Design Doc | Minimum distance in meters between start and end photons to consider consecutive photons a streak. |
streak_n (Compact Dataset) | FLOAT(1) | Streak N (not_set) | meters MABEL Detailed Design Doc | Distance in meters between consecutive photons adequate to consider those photons not part of a streak. |
Group: /channel | ||||
h5es_id | (Attribute) | 64 | ||
Description | (Attribute) | Contains per-channel data. | ||
data_rate | (Attribute) | Parameters in this group at the data rate of each respective subgroup. | ||
Group: /channel/altimetry | ||||
h5es_id | (Attribute) | 37 | ||
Description | (Attribute) | Contains per-channel channel altimetry data. | ||
data_rate | (Attribute) | Parameters in this group at the altimetry segment rate (defined in /ancillary_data/segment_sizes/alt_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ch_latitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Channel Latitude (latitude) | degrees_north Derived (Geolocation ATBD) | Latitude at midpoint of the segment. Derived from geolocated photons, WGS84, North=+ |
ch_longitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Channel Longitude (longitude) | degrees_east Derived (Geolocation ATBD) | Channel Longitude at the midpoint of the segment. Derived from geolocated photons, WGS84, North=+ |
delta_time_end (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time End (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Exclusive elapsed time at the end of each (or the) data segment, referenced to granule_gps_epoch. |
delta_time_start (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time Start (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Inclusive elapsed time at the start of each (or the) data segment, referenced to granule_gps_epoch. |
noise_rate (Chunked Dataset) | FLOAT(UNLIMITED) | noise_rate (not_set) | hertz Derived | Noise Rate. Number of photons in the noise range window divided by segment time duration. |
Group: /channel/altimetry/histogram | ||||
h5es_id | (Attribute) | 40 | ||
Description | (Attribute) | Contains altimetry histograms for this channel derived from the number of photons detected within a region defined by the altimetry histogram range window (/ancillary_data/histograms) and the altimetry segment length (/ancillary_data/segment_sizes/alt_seg_shots). | ||
data_rate | (Attribute) | Parameters in this group at the altimetry segment rate (defined in /ancillary_data/segment_sizes/alt_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
alt_hist_ht_top (Chunked Dataset) | FLOAT(UNLIMITED) | Histogram Height (height) | meters Derived | Height to the top bin of the altimetry histogram |
alt_hist_n_shots (Chunked Dataset) | INTEGER_4(UNLIMITED) | n_hist_shots (not_set) | counts Derived | The n_hist_shots parameter is the number of unique shots, with at least one photon detection, found within the histogram time segment and histogram range window |
alt_histogram (Chunked Dataset) | INTEGER_4(200, UNLIMITED) | altimetry_histogram (not_set) | counts Derived | altimetry histogram - count of the number of photons in each defined height bin. Dimensions are time and bin_number. The first element of the bin dimension corresponds to the highest bin. |
Group: /channel/altimetry/signal_finding | ||||
h5es_id | (Attribute) | 63 | ||
Description | (Attribute) | Parameters related to the L2A signal finding routine. | ||
data_rate | (Attribute) | Parameters in this group at the altimetry segment rate (defined in /ancillary_data/segment_sizes/alt_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
bg_mean (Chunked Dataset) | FLOAT(UNLIMITED) | Background Mean (not_set) | counts Derived (signal finding) | The mean of the number of background counts expected in one elevation bin of the signal finding histogram. |
bg_sdev (Chunked Dataset) | FLOAT(UNLIMITED) | Background Standard Deviation (not_set) | counts Derived (signal finding) | The standard deviation of the number of background counts expected in one elevation bin of the signal finding histogram. |
delta_time (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Elapsed seconds since granule_gps_epoch. |
n_ph_signal (Chunked Dataset) | INTEGER_4(UNLIMITED) | Number of signal photons (not_set) | counts Derived (signal finding) | The number of photons determined as signal within the segment. This includes padding (ph_class=1). |
n_ph_total (Chunked Dataset) | INTEGER_4(UNLIMITED) | Total Photon count (not_set) | counts Derived (signal finding) | The total number of photons within the segment that fall within the photon range window. |
ph_end_index (Chunked Dataset) | INTEGER_8(UNLIMITED) | Photon End Index (not_set) | counts Derived | Index number into the associated array of photons for the last photon within this segment. The array indexing starts at 1, not 0. This is an index into the range-window-filtered photons stored on this product. It does not represent the photons used in noise and histogram computations since those computations use different range windows. |
ph_start_index (Chunked Dataset) | INTEGER_8(UNLIMITED) | Photon starting index (not_set) | counts Derived | Index number into the associated array of photons for the first photon within this segment. The array indexing starts at 1, not 0. This is an index into the range-window-filtered photons stored on this product. It does not represent the photons used in noise and histogram computations since those computations use different range windows. |
sig_dt (Chunked Dataset) | FLOAT(UNLIMITED) | signal finding time interval (not_set) | sec Derived (signal finding) | Integration time over which the majority of the signal photon cloud events within this segment were classified. |
sig_dz (Chunked Dataset) | FLOAT(UNLIMITED) | bin size for signal finding (not_set) | m Derived (signal finding) | Histogram size for which the majority of the photon events within this segment were classified. |
Group: /channel/atmosphere | ||||
h5es_id | (Attribute) | 49 | ||
Description | (Attribute) | Contains atmosphere histograms and related parameters for this channel. Histograms are derived from the number of photons detected within a region defined by the atmosphere histogram range window (/ancillary_data/histograms) and the atmosphere segment length (/ancillary_data/segment_sizes/atm_seg_shots). | ||
data_rate | (Attribute) | Parameters in this group at the atmosphere segment rate (defined in /ancillary_data/segment_sizes/atm_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
atm_hist_ht_top (Chunked Dataset) | FLOAT(UNLIMITED) | Histogram Top (height) | meters Derived | Height to the top bin of the atmosphere histogram |
atm_hist_n_shots (Chunked Dataset) | INTEGER_4(UNLIMITED) | n_hist_shots (not_set) | counts Derived | The n_hist_shots parameter is the number of unique shots, with at least one photon detection, found within the histogram time segment and histogram range window |
atm_histogram (Chunked Dataset) | INTEGER_4(500, UNLIMITED) | atmosphere_histogram (not_set) | counts Derived | atmosphere histogram - count of the number of photons in each defined height bin. Dimensions are time and bin_number. The first element of the bin dimension corresponds to the highest bin. |
bg_mean (Chunked Dataset) | FLOAT(UNLIMITED) | Atmosphere Background Mean (not_set) | counts Derived (Photon Classification ATBD) | Noise background mean of the atmosphere segment. This value is computed by the signal finding routine using its signal-removing technique to create background-only statistics. |
bg_sdev (Chunked Dataset) | FLOAT(UNLIMITED) | Background Standard Deviation (not_set) | counts Derived (Photon Classification ATBD) | Background standard deviation for the Atmosphere segment. This value is computed by the signal finding routine using its signal-removing technique to create background-only statistics. |
ch_latitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Channel Latitude (latitude) | degrees_north Derived (Geolocation ATBD) | Latitude at midpoint of the segment. Derived from geolocated photons, WGS84, North=+ |
ch_longitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Channel Longitude (longitude) | degrees_east Derived (Geolocation ATBD) | Channel Longitude at the midpoint of the segment. Derived from geolocated photons, WGS84, North=+ |
delta_time_end (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time End (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Exclusive elapsed time at the end of each (or the) data segment, referenced to granule_gps_epoch. |
delta_time_start (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time Start (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Inclusive elapsed time at the start of each (or the) data segment, referenced to granule_gps_epoch. |
Group: /channel/photon | ||||
h5es_id | (Attribute) | 52 | ||
Description | (Attribute) | Contains photon cloud data for this channel. | ||
data_rate | (Attribute) | Parameters in this group are at the photon detection rate. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
delta_time (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Elapsed seconds since granule_gps_epoch. |
ph_class (Chunked Dataset) | INTEGER_1(UNLIMITED) | Photon Classification Flag (not_set) | counts Derived (signal finding ATBD) | Photon classification flag. 0=noise, 1=buffer, 2=low, 3=medium, 4=high flag_values: 0, 1, 2, 3, 4 flag_meanings : noise buffer low medium high |
ph_class_src (Chunked Dataset) | INTEGER_1(UNLIMITED) | Photon Classification Source (not_set) | counts Derived (signal finding ATBD) | Source of the Photon classification flag. 0=none or no background, 1=ellipsoidal histogram, 2=slant histogram, 3=padding flag_values: 0, 1, 2, 3, 4 flag_meanings : none ellipsoidal slant pad no_bg |
ph_h (Chunked Dataset) | FLOAT(UNLIMITED) | elev (height) | meters Derived (Geolocation ATBD) | Photon height above the WGS84 ellipsoid derived from geolocation. |
ph_id (Chunked Dataset) | INTEGER_2(UNLIMITED) | photon_id (not_set) | counts Derived | Photon-per-shot counter. Increments for each photon detected within a shot. Together with shot_num, forms a unique identifier for each photon. However, be aware of shot_num rollover. |
ph_latitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Photon Latitude (latitude) | degrees_north Derived (Geolocation ATBD) | Photon Latitude derived from geolocation, WGS84, North=+ |
ph_longitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Photon Longitude (longitude) | degrees_east Derived (Geolocation ATBD) | Photon Longitude derived from geolocation, WGS84, North=+ |
ph_shot (Chunked Dataset) | INTEGER_4(UNLIMITED) | Photon shot number (not_set) | counts L1A Shottag packet | Shot Number, copied from the L1A shottag packet. |
Group: /channel/quality_assessment | ||||
h5es_id | (Attribute) | 53 | ||
Description | (Attribute) | Contains per-channel QA statistics. | ||
data_rate | (Attribute) | Parameters in this group at 0.1Hz. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
delta_time_end (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time End (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Exclusive elapsed time at the end of each (or the) data segment, referenced to granule_gps_epoch. |
delta_time_start (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time Start (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Inclusive elapsed time at the start of each (or the) data segment, referenced to granule_gps_epoch. |
first_lat (Chunked Dataset) | DOUBLE(UNLIMITED) | Initial latitude (not_set) | degrees_north Derived (QA) | Latitude computed for initial photon. |
first_lon (Chunked Dataset) | DOUBLE(UNLIMITED) | Initiallongitude (not_set) | degrees_east Derived (QA) | Longitude computed for initial photon. |
last_lat (Chunked Dataset) | DOUBLE(UNLIMITED) | final latitude (not_set) | degrees_north Derived (QA) | Latitude computed for final photon. |
last_lon (Chunked Dataset) | DOUBLE(UNLIMITED) | final longitude (not_set) | degrees_east Derived (QA) | Longitude computed for final photon. |
n_ht (Chunked Dataset) | INTEGER_4(UNLIMITED) | number of heights (not_set) | counts Derived (QA) | Number of height measurements computed. |
shots_w_streak (Chunked Dataset) | INTEGER_4(UNLIMITED) | shots with streaks (not_set) | counts Derived (QA) | Number of shots with streaks. |
streak_n_del (Chunked Dataset) | INTEGER_4(UNLIMITED) | streaks deleted (not_set) | counts Derived (QA) | Number of streaks deleted. |
streaklen (Chunked Dataset) | DOUBLE(5, UNLIMITED) | streak length (not_set) | meters Derived (QA) | Streak length statistics. Values are in the order number_of_points, minimum, maximum, average, standard_deviation. |
Group: /flight_parameters | ||||
h5es_id | (Attribute) | 4 | ||
Description | (Attribute) | Contains flight/scenario characteristics derived from information provided by the MABEL instrument team. | ||
data_rate | (Attribute) | Parameters in this group are single-instances valid for the entire file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
angle_1064_mrad (Compact Dataset) | FLOAT(50) | 1064 Angle (not_set) | mrad Ancillary Scenario File | Angle of each 1064 connector |
angle_532_mrad (Compact Dataset) | FLOAT(50) | 532 Angle (not_set) | mrad Ancillary Scenario File | Angle of each 532 connector |
channel_1064 (Compact Dataset) | INTEGER_4(50) | 1064 Channel Numbers (not_set) | counts Ancillary Scenario File | Channel number for each 1064 channel |
channel_1064_flag (Compact Dataset) | INTEGER_4(50) | 1064 Channel Flag (not_set) | counts Ancillary Scenario File | Channel flag (0=processed, 1=skipped) |
channel_532 (Compact Dataset) | INTEGER_4(50) | 532 Channel Numbers (not_set) | counts Ancillary Scenario File | Channel number for each 532 channel |
channel_532_flag (Compact Dataset) | INTEGER_4(50) | 532 Channel Flag (not_set) | counts Ancillary Scenario File | Channel flag (0=processed, 1=skipped) |
comments (Compact Dataset) | STRING:255(1) | Flight Comments (not_set) | not_set Ancillary Flight File | Comments from the MABEL flight team |
connector_1064 (Compact Dataset) | INTEGER_4(50) | 1064 Connector Numbers (not_set) | counts Ancillary Scenario File | Connector number for each 1064 channel |
connector_532 (Compact Dataset) | INTEGER_4(50) | 532 Connector Numbers (not_set) | counts Ancillary Scenario File | Connector number for each 532 channel |
ds_pulse_shape (Contiguous Dataset) | INTEGER_1(20) | Pulse Shape Index (not_set) | ns MABEL Flight Team | index of the Transmit Pulse Shape (tx_pulse_shape_x) |
ds_tof_port (Contiguous Dataset) | INTEGER_1(50) | TOF channel port (not_set) | not_set not_set | Dimension scale for TOF channels. |
elevation_1064_mrad (Compact Dataset) | FLOAT(50) | 1064 Elevation (not_set) | mrad Ancillary Scenario File | Elevation for each 1064 connector (mrad) |
elevation_532_mrad (Compact Dataset) | FLOAT(50) | 532 Elevation (not_set) | mrad Ancillary Scenario File | Elevation for each 532 connector (mrad) |
fiber_1064 (Compact Dataset) | INTEGER_4(50) | 1064 Fiber Numbers (not_set) | counts Ancillary Scenario File | Fiber number for each 1064 channel |
fiber_532 (Compact Dataset) | INTEGER_4(50) | 532 Fiber Numbers (not_set) | counts Ancillary Scenario File | Fiber number for each 532 channel |
filt_energy_1064_u (Compact Dataset) | FLOAT(50) | 1064 Filtered Energy (not_set) | uJ Ancillary Scenario File | Filtered energy for each 1064 channel (uJ) |
filter_1064 (Compact Dataset) | FLOAT(50) | 1064 Filter per Channel (not_set) | mm Ancillary Scenario File | Filter for each 1064 channel |
filter_532 (Compact Dataset) | FLOAT(50) | 532 Filter per Channel (not_set) | mm Ancillary Scenario File | Filter for each 532 channel |
filter_density_1064 (Compact Dataset) | FLOAT(2) | 1064 Filter Density (not_set) | counts Ancillary Scenario File | Density of the 1064 filters |
filter_density_532 (Compact Dataset) | FLOAT(2) | 532 Filter Density (not_set) | counts Ancillary Scenario File | Density of the 532 filters |
filter_size_1064 (Compact Dataset) | FLOAT(2) | 1064 Filter Size (not_set) | mm Ancillary Scenario File | Size of 1064 filter(s) |
filter_size_532 (Compact Dataset) | FLOAT(2) | 532 Filter Size (not_set) | mm Ancillary Scenario File | Size of 532 filter(s) |
filtered_energy_532_u (Compact Dataset) | FLOAT(50) | 532 Filtered Energy (not_set) | uJ Ancillary Scenario File | Filtered energy for each 532 channel (uJ) |
flight_end_utc (Compact Dataset) | STRING:28(1) | Ending Time of Flight (not_set) | not_set Ancillary Flight File | UTC stop time of the flight in CCSDS-A format |
flight_location (Compact Dataset) | STRING:255(1) | Flight Location (not_set) | counts Ancillary Flight File | Primary location of the flight |
flight_number (Contiguous Dataset) | INTEGER_4(1) | Flight Number (not_set) | counts Ancillary Flight File | Incremental flight number |
flight_start_utc (Compact Dataset) | STRING:28(1) | Start Time of Flight (not_set) | not_set Ancillary Flight File | UTC start time of the flight in CCSDS-A format |
flight_version (Compact Dataset) | STRING:80(1) | Flight File Version (not_set) | counts Ancillary Flight File | Version number of the ancillary flight file. |
gps_rate (Compact Dataset) | INTEGER_4(1) | GPS Rate (not_set) | hertz Ancillary Flight File | Data rate of the GPS (Hz) |
imu_bias (Compact Dataset) | DOUBLE(3) | IMU Bias (not_set) | mrad Ancillary Scenario File | IMU bias coefficients (IMU to vehicle frame); roll, pitch, yaw (mrad) |
imu_rate (Compact Dataset) | INTEGER_4(1) | IMU Rate (not_set) | hertz Ancillary Flight File | Data rate of the IMU (Hz) |
label (Compact Dataset) | STRING:255(1) | Flight Label (not_set) | not_set Ancillary Flight File | Unique label associated with the flight |
laser_rate (Compact Dataset) | INTEGER_4(1) | Laser Rate (not_set) | hertz Ancillary Flight File | Data rate of the Laser (Hz) |
mab_bias_1064 (Compact Dataset) | DOUBLE(3) | MABEL Bias 1064 (not_set) | mrad Ancillary Scenario File | 1064 MABEL bias coefficients (MABEL frame to IMU); roll, pitch, heading (mrad) |
mab_bias_532 (Compact Dataset) | DOUBLE(3) | MABEL Bias 532 (not_set) | mrad Ancillary Scenario File | 532 MABEL bias coefficients (MABEL frame to IMU); roll, pitch, heading (mrad) |
mab_imu_off (Compact Dataset) | DOUBLE(3) | MABEL IMU Offset (not_set) | mrad Ancillary Scenario File | IMU origin ofsets; roll, pitch, heading (mrad) |
mab_lrp_off (Compact Dataset) | DOUBLE(3) | MABEL Laser Reference Point Offset (not_set) | mrad Ancillary Scenario File | Laser reference point offsets; roll, pitch, heading (mrad) |
num_channels_1064 (Compact Dataset) | INTEGER_4(1) | Number of 1064 Channels (not_set) | counts Derived | Number of 1064 channels present during the flight. |
num_channels_532 (Compact Dataset) | INTEGER_4(1) | Number of 532 channels (not_set) | counts Derived | Number of 532 channels present during the flight. |
num_filter_1064 (Compact Dataset) | INTEGER_4(1) | Number of 1064 Filters (not_set) | counts Derived | Number of 1064 filters present during the flight. |
num_filter_532 (Compact Dataset) | INTEGER_4(1) | Number of 532 filters (not_set) | counts Derived | Number of 532 filters present during the flight. |
num_poi (Compact Dataset) | INTEGER_4(1) | Number of POIs (not_set) | counts Ancillary Flight File | Number of points-of-interest for the flight |
offset2_on_ground_1064_m (Compact Dataset) | FLOAT(50) | 1064 Offset 2 (not_set) | m Ancillary Scenario File | Pitch offset on ground for each 1064 channel (m) |
offset2_on_ground_532_m (Compact Dataset) | FLOAT(50) | 532 Offset 2 (not_set) | m Ancillary Scenario File | Pitch offset on ground for each 532 channel (m) |
offset_on_ground_1064_m (Compact Dataset) | FLOAT(50) | 1064 Offset (not_set) | m Ancillary Scenario File | Roll offset on ground for each 1064 channel (m) |
offset_on_ground_532_m (Compact Dataset) | FLOAT(50) | 532 Offset (not_set) | m Ancillary Scenario File | Roll offset on ground of each 532 channel (m) |
path_length_1064_mm (Compact Dataset) | FLOAT(50) | 1064 Path Length (not_set) | mm Ancillary Scenario File | Path length for each 1064 fiber (mm) |
path_length_532_mm (Compact Dataset) | FLOAT(50) | 532 Path Length (not_set) | mm Ancillary Scenario File | Path length for each 532 fiber (mm) |
platform_longname (Compact Dataset) | STRING:255(1) | Platform Longname (not_set) | not_set Ancillary Scenario File | Long name of platform (aircraft) carrying the MABEL instrument. |
platform_shortname (Compact Dataset) | STRING:255(1) | Platform Shortname (not_set) | not_set Ancillary Scenario File | Short name of platform (aircraft) carrying the MABEL instrument. |
point_of_interest (Compact Dataset) | STRING:255(1) | Point of Interest (not_set) | not_set Ancillary Flight File | Points of interest identified by the mabel flight team |
power_1064_mw (Compact Dataset) | FLOAT(50) | 1064 Power (not_set) | mW Ancillary Scenario File | Power for each 1064 channel (mW) |
power_532_mw (Compact Dataset) | FLOAT(50) | 532 Power (not_set) | mW Ancillary Scenario File | Power for each 532 channel (mW) |
raw_energy_1064_u (Compact Dataset) | FLOAT(50) | 1064 Raw Energy (not_set) | uJ Ancillary Scenario File | Raw energy for each 1064 channel (uJ) |
raw_energy_532_u (Compact Dataset) | FLOAT(50) | 532 Raw Energy (not_set) | uJ Ancillary Scenario File | Raw energy for each 532 channel (uJ) |
rec_power_1064_mw (Compact Dataset) | FLOAT(50) | 1064 Received Power (not_set) | mW Ancillary Scenario File | Received power for each 1064 channel (mW) |
rec_power_532_mw (Compact Dataset) | FLOAT(50) | 532 Received Power (not_set) | mW Ancillary Scenario File | Received power for each 532 channel (mW) |
reference_channel_1064 (Compact Dataset) | INTEGER_4(1) | 1064 Reference Channel (not_set) | counts Ancillary Scenario File | Representative channel for 1064 |
reference_channel_532 (Compact Dataset) | INTEGER_4(1) | 532 Reference Channel (not_set) | counts Ancillary Scenario File | Representative channel for 532 |
scenario_number (Contiguous Dataset) | INTEGER_4(1) | Scenario Number (not_set) | counts Ancillary Flight File | Associated mabel configuration scenario number |
scenario_utc_time (Compact Dataset) | STRING:17(1) | Start Time of Scenario (not_set) | not_set Ancillary Scenario File | UTC start time of the scenario in CCSDS-A format |
scenario_version (Compact Dataset) | STRING:80(1) | Scenario Version (not_set) | not_set Ancillary Scenario File | Version number of the ancillary scenario file |
transmit_efficiency_1064 (Compact Dataset) | FLOAT(50) | Transmit Efficiency 532 (not_set) | percent MABEL Flight Team | The laboratory-measured efficiency of the transmit path, for each beam, from the point the transmit power was measured to its output point from MABEL. |
transmit_efficiency_532 (Compact Dataset) | FLOAT(50) | Transmit Efficiency 532 (not_set) | percent MABEL Flight Team | The laboratory-measured efficiency of the transmit path, for each beam, from the point the transmit power was measured to its output point from MABEL. |
tx_pulse_shape_1064 (Compact Dataset) | FLOAT(20) | Transmit Pulse Shape 1064 (not_set) | ns MABEL Flight Team | The laboratory-measured shape of the 1064 Transmit Pulse. Values are provided every 0.5 ns. |
tx_pulse_shape_532 (Compact Dataset) | FLOAT(20) | Transmit Pulse Shape 532 (not_set) | ns MABEL Flight Team | The laboratory-measured shape of the 532 Transmit Pulse. Values are provided every 0.5 ns. |
Group: /meteorology | ||||
h5es_id | (Attribute) | 59 | ||
Description | (Attribute) | This group contains meteorological information interpolated from GEOS5 FP_IT data produced by the Global Modeling and Assimilation Office (GMAO) at NASA Goddard Space Flight Center. A set of values is stored for each atmosphere segment (defined by /ancillary_data/segment_sizes/atm_seg_shots). | ||
data_rate | (Attribute) | Parameters in this group at the atmosphere segment rate (defined in /ancillary_data/segment_sizes/atm_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
cloud (Chunked Dataset) | FLOAT(48, UNLIMITED) | cloud_fraction_for_radiation (cloud_fraction_for_radiation) | 1 GEOS5 FP_IT | The horizontal fractional cloud cover for each layer as seen by the radiation. In the vertical, clouds are assumed to fill the layer. This fraction is the combination of the models predicted large-scale and convective fractions that is used for radiative purposes. Interpolated to the midpoint of the atmosphere segment. Reported at the native GEOS5-FPIT levels up to approximately 30Km. |
delta_time_end (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time End (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Exclusive elapsed time at the end of each (or the) data segment, referenced to granule_gps_epoch. |
delta_time_start (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time Start (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Inclusive elapsed time at the start of each (or the) data segment, referenced to granule_gps_epoch. |
ds_met_levels (Contiguous Dataset) | INTEGER_4(48) | met_levels_dim_scale (not_set) | counts not_set | Dimension scale for native GEOS5 FT-IP levels up to approximately 30Km. Actual height values vary due to the geoid. |
h (Chunked Dataset) | FLOAT(48, UNLIMITED) | mid_layer_heights (mid_layer_heights) | m GEOS5 FP_IT | Geopotential height of the layer. Interpolated to the midpoint of the atmosphere segment. Reported at the native GEOS5-FPIT levels up to approximately 30Km. |
o3 (Chunked Dataset) | FLOAT(48, UNLIMITED) | ozone_mass_mixing_ration (ozone_mass_mixing_ration) | kg kg-1 GEOS5 FP_IT | Ozone mass mixing ratio. Interpolated to the midpoint of the atmosphere segment. Reported at the native GEOS5-FPIT levels up to approximately 30Km. |
pl (Chunked Dataset) | FLOAT(48, UNLIMITED) | mid_level_pressure (mid_level_pressure) | Pa GEOS5 FP_IT | The layer pressure defined as the average of the upper and lower edge pressures, PLE, in Pa. Interpolated to the midpoint of the atmosphere segment. Reported at the native GEOS5-FPIT levels up to approximately 30Km. |
qv (Chunked Dataset) | FLOAT(48, UNLIMITED) | Specific Humidity (specific_humidity) | kg kg-1 GEOS5 FP_IT | Specific humidity. Interpolated to the midpoint of the atmosphere segment. Reported at native GEOS5 FP-IT levels up to approximately 30Km. |
rt_latitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Reference Track Latitude (latitude) | degrees_north Derived (Reference Track) | Latitude of the location on a center-beam, altitude-based reference track used for determining the DEM, geoid, surface_type, and photon/noise windows. |
rt_longitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Reference Track Longitude (longitude) | degrees_east Derived (Reference Track) | Longitude of the location on a center-beam, altitude-based reference track used for determining the DEM, geoid, surface_type, and photon/noise windows. |
slp (Chunked Dataset) | FLOAT(UNLIMITED) | sea_level_pressure (sea_level_pressure) | Pa GEOS5 FP_IT | The surface pressure reduced to sea level, in Pa. Over topography the reduction is done by assuming a lapse rate of 6.5 K km-1 from a free atmospheric temperature. Interpolated to the midpoint of the atmosphere segment. |
t (Chunked Dataset) | FLOAT(48, UNLIMITED) | temperature (air_temperature) | K GOES5_FP_IT | Air temperature in Kelvin. Interpolated to the midpoint of the atmosphere segment. Reported at native GEOS5 FP-IT levels up to approximately 30Km. |
u (Chunked Dataset) | FLOAT(48, UNLIMITED) | Eastward Wind Velocity (eastward_wind) | m s-1 GEOS5 FP_IT | Eastward wind velocity Interpolated to the midpoint of the atmosphere segment. Reported at native GEOS5 FP-IT levels up to approximately 30Km. |
v (Chunked Dataset) | FLOAT(48, UNLIMITED) | northward_wind (northward_wind) | m s-1 GEOS5 FP_IT | Northward wind velocity. Interpolated to the midpoint of the atmosphere segment. Reported at native GEOS5 FP-IT levels up to approximately 30Km. |
Group: /novatel_ins | ||||
h5es_id | (Attribute) | 22 | ||
Description | (Attribute) | Contains parameters provided within the L1A Novatel INS input file. | ||
data_rate | (Attribute) | Most parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz). The imu2gps and s2body parameters are single instance values for the whole file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
delta_time (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Elapsed seconds since granule_gps_epoch. |
ds_xyz (Contiguous Dataset) | INTEGER_4(3) | Dimension scale for XYZ axes. (not_set) | counts Geolocation ATBD | Dimension scale for XYZ axes (x, y, z) flag_values: 1, 2, 3 flag_meanings : X Y Z |
imu2gps_lever (Compact Dataset) | FLOAT(3) | Lever Arm XYZ (not_set) | m L1A INS Data File | IMU to GNSS Antenna Lever Arm X,Y,Z. This parameter may not be available for early MABEL flights (check FillValue). |
s2body_rot (Compact Dataset) | FLOAT(3) | SC to Body XYZ (not_set) | m L1A INS Data File | Sensor-to-Body rotation X, Y, Z. This parameter may not be available for early MABEL flights (check FillValue). |
Group: /novatel_ins/attitude | ||||
h5es_id | (Attribute) | 23 | ||
Description | (Attribute) | Contains aircraft orientation parameters from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_heading (Chunked Dataset) | DOUBLE(UNLIMITED) | heading (not_set) | degrees L1A INS Data | Heading angle computed by GPS/INS routines |
ins_heading_sd (Chunked Dataset) | FLOAT(UNLIMITED) | heading_sd (not_set) | degrees L1A INS Data | standard deviation of heading |
ins_pitch (Chunked Dataset) | DOUBLE(UNLIMITED) | pitch (not_set) | degrees L1A INS Data | Pitch angle computed by GPS/INS routines |
ins_pitch_sd (Chunked Dataset) | FLOAT(UNLIMITED) | pitch_sd (not_set) | degrees L1A INS Data | standard deviation of pitch |
ins_roll (Chunked Dataset) | DOUBLE(UNLIMITED) | roll (not_set) | degrees L1A INS Data | Roll angle computed by GPS/INS routines |
ins_roll_sd (Chunked Dataset) | FLOAT(UNLIMITED) | roll_sd (not_set) | degrees L1A INS Data | standard deviation of roll |
Group: /novatel_ins/covariance | ||||
h5es_id | (Attribute) | 60 | ||
Description | (Attribute) | Contains velocity-related parameters. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_cx11 (Chunked Dataset) | DOUBLE(UNLIMITED) | Position X-X covariance (not_set) | m2 L1A INS Data | Position X-X covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cx21 (Chunked Dataset) | DOUBLE(UNLIMITED) | Position Y-X covariance (not_set) | m2 L1A INS Data | Position Y-X covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cx22 (Chunked Dataset) | DOUBLE(UNLIMITED) | Position Y-Y covariance (not_set) | m2 L1A INS Data | Position Y-Y covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cx31 (Chunked Dataset) | DOUBLE(UNLIMITED) | Position Z-X covariance (not_set) | m2 L1A INS Data | Position Z-X covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cx32 (Chunked Dataset) | DOUBLE(UNLIMITED) | Position Z-Y covariance (not_set) | m2 L1A INS Data | Position Z-Y covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cx33 (Chunked Dataset) | DOUBLE(UNLIMITED) | Position Z-Z covariance (not_set) | m2 L1A INS Data | Position Z-Z covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxee (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxee (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxeh (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxeh (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxen (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxen (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxhh (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxhh (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxnh (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxnh (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxnn (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxnn (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxvee (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxvee (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxveh (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxveh (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxven (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxven (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxvhh (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxvhh (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxvnh (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxvnh (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_cxvnn (Chunked Dataset) | DOUBLE(UNLIMITED) | ins_cxvnn (not_set) | m2 L1A INS Data | cx11 covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_vel_cx11 (Chunked Dataset) | DOUBLE(UNLIMITED) | Velocity X-X covariance (not_set) | m2/s2 L1A INS Data | Velocity X-X covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_vel_cx21 (Chunked Dataset) | DOUBLE(UNLIMITED) | Velocity Y-X covariance. (not_set) | m2/s2 L1A INS Data | Velocity Y-X covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_vel_cx22 (Chunked Dataset) | DOUBLE(UNLIMITED) | Velocity Y-Y covariance (not_set) | m2/s2 L1A INS Data | Velocity Y-Y covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_vel_cx31 (Chunked Dataset) | DOUBLE(UNLIMITED) | Velocity Z-X covariance. (not_set) | m2/s2 L1A INS Data | Velocity Z-X covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_vel_cx32 (Chunked Dataset) | DOUBLE(UNLIMITED) | Velocity Z-Y covariance (not_set) | m2/s2 L1A INS Data | Velocity Z-Y covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
ins_vel_cx33 (Chunked Dataset) | DOUBLE(UNLIMITED) | Velocity Z-Z covariance (not_set) | m2/s2 L1A INS Data | elocity Z-Z covariance. This parameter may not be available on early MABEL flights. Check FillValue. |
Group: /novatel_ins/ecef | ||||
h5es_id | (Attribute) | 24 | ||
Description | (Attribute) | Contains Earth-centered, earth-facing (ECEF) parameters from the Novatel INS instrument. | ||
data_rate | (Attribute) | Most parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz). The imu2gps and s2body parameters are single instance values for the whole file. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_x_ecef (Chunked Dataset) | DOUBLE(UNLIMITED) | x_ecef (not_set) | meters L1A INS Data | X, earth-centered earth-fixed frame |
ins_x_ecef_sd (Chunked Dataset) | FLOAT(UNLIMITED) | x_ecef_sd (not_set) | meters L1A INS Data | standard deviation of x_ecef |
ins_y_ecef (Chunked Dataset) | DOUBLE(UNLIMITED) | y_ecef (not_set) | meters L1A INS Data | Y, earth-centered earth-fixed frame |
ins_y_ecef_sd (Chunked Dataset) | FLOAT(UNLIMITED) | y_ecef_sd (not_set) | meters L1A INS Data | standard deviation of y_ecef |
ins_z_ecef (Chunked Dataset) | DOUBLE(UNLIMITED) | z_ecef (not_set) | meters L1A INS Data | Z, earth-centered earth-fixed frame |
ins_z_ecef_sd (Chunked Dataset) | FLOAT(UNLIMITED) | z_ecef_sd (not_set) | meters L1A INS Data | standard deviation of z_ecef |
Group: /novatel_ins/flags | ||||
h5es_id | (Attribute) | 25 | ||
Description | (Attribute) | Contains flag data from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_bad_field_count (Chunked Dataset) | INTEGER_4(UNLIMITED) | bad_field_count (not_set) | counts L1A INS Data | Number of fields in this INS record that were determined as bad uponinput of the L1A INS data. These fields are generally filled with a value of -9999.99 |
ins_flag (Chunked Dataset) | INTEGER_4(UNLIMITED) | imu_flag (not_set) | counts L1A INS Data | IMU Status - (0=ideal), where : 0=GPS position computed and used; 1=GPS range update applied; 2=no update applied (free mode); 3=zero velocity update applied (not moving); 4=phase update applied. flag_values: 0, 1, 2, 3, 4 flag_meanings : position_used position_update free_mode not_moving phase_update |
ins_num_gps_sat (Chunked Dataset) | INTEGER_4(UNLIMITED) | Number of GPS Satellites (not_set) | counts L1A INS Data | Number of GPS satellites in observation |
ins_quality_num (Chunked Dataset) | INTEGER_4(UNLIMITED) | quality_num (not_set) | counts L1A INS Data | Quality factor (integer: 1=best; 6=worst) |
Group: /novatel_ins/geolocation | ||||
h5es_id | (Attribute) | 26 | ||
Description | (Attribute) | Contains geolocation-related parameters from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_comb_sd (Chunked Dataset) | FLOAT(UNLIMITED) | Combined standard deviation (not_set) | meters L1A INS Data | Combined N, E, and Hgt standard deviation |
ins_ht_ell (Chunked Dataset) | DOUBLE(UNLIMITED) | Height above ellipsoid (height) | meters L1A INS Data | Height above WGS84 ellipsoid |
ins_latitude (Chunked Dataset) | DOUBLE(UNLIMITED) | latitude (latitude) | degrees_north L1A INS Data | Latitude, WGS84, North=+ |
ins_longitude (Chunked Dataset) | DOUBLE(UNLIMITED) | longitude (longitude) | degrees_east L1A INS Data | Longitude, WGS84, East=+ |
Group: /novatel_ins/rms | ||||
h5es_id | (Attribute) | 28 | ||
Description | (Attribute) | Contains RMS values from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_ca_rms (Chunked Dataset) | FLOAT(UNLIMITED) | ca_rms (not_set) | counts L1A INS Data | C/A code RMS error |
ins_l1_rms (Chunked Dataset) | FLOAT(UNLIMITED) | l1_rms (not_set) | counts L1A INS Data | L1 RMS error |
Group: /novatel_ins/solar_angle | ||||
h5es_id | (Attribute) | 29 | ||
Description | (Attribute) | Contains solar angle parameters from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_solar_azimuth (Chunked Dataset) | FLOAT(UNLIMITED) | Solar Azimuth (not_set) | degrees L1A INS Data | Azimuth of the sun from true north, at position and time |
ins_solar_elevation (Chunked Dataset) | FLOAT(UNLIMITED) | Solar Elevation (not_set) | degrees L1A INS Data | elevation of sun above horizon, at position and time |
Group: /novatel_ins/sta | ||||
h5es_id | (Attribute) | 30 | ||
Description | (Attribute) | Contains status parameters from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_pdop (Chunked Dataset) | FLOAT(UNLIMITED) | position dilution of precision (not_set) | counts L1A INS Data | position dilution of precision (indicator of x, y, z geometry) |
Group: /novatel_ins/time | ||||
h5es_id | (Attribute) | 31 | ||
Description | (Attribute) | Contains GPS time parameters from the Novatel INS instrument. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_gps_sow (Chunked Dataset) | DOUBLE(UNLIMITED) | gps seconds of week (not_set) | seconds L1A INS Data | GPS seconds of week corrected for receiver clock bias |
ins_gps_week (Chunked Dataset) | INTEGER_4(UNLIMITED) | gps week (not_set) | weeks L1A INS Data | GPS week number |
Group: /novatel_ins/velocity | ||||
h5es_id | (Attribute) | 27 | ||
Description | (Attribute) | Contains velocity-related parameters. | ||
data_rate | (Attribute) | Parameters in this group are at the data rate of the L1B Novatel INS data packet (nominally 100hz) | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ins_v_east (Chunked Dataset) | FLOAT(UNLIMITED) | v_east (not_set) | meters per second L1A INS Data | Velocity component in the local level east axis |
ins_v_north (Chunked Dataset) | FLOAT(UNLIMITED) | v_north (not_set) | meters per second L1A INS Data | Velocity component in the local level north axis |
ins_v_up (Chunked Dataset) | FLOAT(UNLIMITED) | v_up (not_set) | meters per second L1A INS Data | Velocity component in the local level vertical axis |
Group: /quality_assessment | ||||
h5es_id | (Attribute) | 6 | ||
Description | (Attribute) | Contains quality assessment data. This may include QA counters, QA along-track data and/or QA summary data. | ||
data_rate | (Attribute) | Parameters in this group at the data rate defined in each quality_assessment subgroup. | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
delta_time_end (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time End (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Exclusive elapsed time at the end of each (or the) data segment, referenced to granule_gps_epoch. |
delta_time_start (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time Start (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Inclusive elapsed time at the start of each (or the) data segment, referenced to granule_gps_epoch. |
Group: /reference_track | ||||
h5es_id | (Attribute) | 35 | ||
Description | (Attribute) | Contains parameters derived from the location given by the reference track (or at the same data rate as the reference track data) Segment size is defined by /ancillary_data/segment_sizes/alt_seg_shots. | ||
data_rate | (Attribute) | Parameters in this group are at the altimetry segment rate (defined in /ancillary_data/segment_sizes/alt_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
delta_time_end (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time End (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Exclusive elapsed time at the end of each (or the) data segment, referenced to granule_gps_epoch. |
delta_time_start (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time Start (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Inclusive elapsed time at the start of each (or the) data segment, referenced to granule_gps_epoch. |
rt_latitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Reference Track Latitude (latitude) | degrees_north Derived (Reference Track) | Latitude of the location on a center-beam, altitude-based reference track used for determining the DEM, geoid, surface_type, and photon/noise windows. |
rt_longitude (Chunked Dataset) | DOUBLE(UNLIMITED) | Reference Track Longitude (longitude) | degrees_east Derived (Reference Track) | Longitude of the location on a center-beam, altitude-based reference track used for determining the DEM, geoid, surface_type, and photon/noise windows. |
Group: /reference_track/corrections | ||||
h5es_id | (Attribute) | 61 | ||
Description | (Attribute) | Contains corrections derived from the location on the reference track at the altimetry segment rate. (/ancillary_data/segment_sizes/alt_seg_shots). Ancillary data used in the derivations are found in the group /ancillary_data/photon_range_window. | ||
data_rate | (Attribute) | Parameters in this group at the altimetry segment rate (defined in /ancillary_data/segment_sizes/alt_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
atm_dd_dh1064 (Chunked Dataset) | DOUBLE(UNLIMITED) | Atmosphere Delay Ratio 1064 (not_set) | meters Derived (Atmosphere Delay ATBD) | Ratio of atmosphere delay to height for 1064. Used to compute an additive per-shot atmosphere delay that is applied to 1064 heights after geolocation. |
atm_dd_dh532 (Chunked Dataset) | DOUBLE(UNLIMITED) | Atmosphere Delay Ratio 532 (not_set) | meters Derived (Atmosphere Delay ATBD) | Ratio of atmosphere delay to height for 532. Used to compute an additive per-shot atmosphere delay that is applied to 532 heights after geolocation. |
atm_delay1064 (Chunked Dataset) | DOUBLE(UNLIMITED) | Atmosphere Delay 1064 (not_set) | meters Derived (Atmosphere Delay ATBD) | 1064 delay due to atmosphere, computed from the platform altitude to the the DEM height. Used to compute an additive per-shot atmosphere delay that is applied to 1064 heights after geolocation. |
atm_delay532 (Chunked Dataset) | DOUBLE(UNLIMITED) | Atmosphere Delay 532 (not_set) | meters Derived (Atmosphere Delay ATBD) | 532 delay due to atmosphere, computed from the platform altitude to the the DEM height. Used to compute an additive per-shot atmosphere delay that is applied to 532 heights after geolocation. |
transtime (Chunked Dataset) | FLOAT(UNLIMITED) | Transit Time (not_set) | seconds Derived (ht_ell/(speed_light/2.0)) | Transit time of the laser light to photon bounce. Not applied to heights. |
Group: /reference_track/geophysical | ||||
h5es_id | (Attribute) | 38 | ||
Description | (Attribute) | Contains geophysical parameters derived from the location on the reference track at the altimetry segment data rate. Includes MSS (mean sea surface), geoids, suface type, and range windows for each altimetry segment. The duration of an altimetry segment is defined by /ancillary_data/segment_sizes/alt_seg_shots. | ||
data_rate | (Attribute) | Parameters in this group at the altimetry segment rate (defined in /ancillary_data/segment_sizes/alt_seg_shots). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
ds_surf_type (Contiguous Dataset) | INTEGER_4(5) | Dimension scale for surf_type (not_set) | counts not_set | Dimension scale for surf_type. Defines the meaning of each surf_type array element. flag_values: 1, 2, 3, 4, 5 flag_meanings : LAND OCEAN SEA_ICE LAND_ICE INLAND_WATER |
egm2008_geoid (Chunked Dataset) | FLOAT(UNLIMITED) | egm2008_hgt (not_set) | meters EGM2008 ANC File | Interpolated geoid values from the EGM2008 1min grid. |
egm96_geoid (Chunked Dataset) | FLOAT(UNLIMITED) | egm96_geoid (not_set) | meters EGM96 ANC File | Interpolated geoid values from the EGM96 15min grid. |
mss_h (Chunked Dataset) | FLOAT(UNLIMITED) | mean_sea_surface (height) | meters DTU10 ANC File | Mean Sea Surface height. Values interpolated from the 1-min DTU10 MSS (global ocean), referenced to T/P ellipsoid. The value is not adjusted since there are only small differences between the WGS84 and TOPEX ellipsoids ( about 0.71 meters). |
noise_window_bot (Chunked Dataset) | FLOAT(UNLIMITED) | Bottom of the Noise Window (not_set) | meters Derived (dem_h-NOISE_RANGE_BOT_OFF) | Bottom height of the noise window used for noise rate calculation. (ht_dem-NOISE_RANGE_BOT_OFF) |
noise_window_top (Chunked Dataset) | FLOAT(UNLIMITED) | noise_top_window (not_set) | meters Derived (dem_h+NOISE_RANGE_TOP_OFF) | Top height of the noise window used for noise rate calculation. (ht_dem+NOISE_RANGE_TOP_OFF) |
photon_window_bot (Chunked Dataset) | FLOAT(UNLIMITED) | Photon Window Bottom (not_set) | meters Derived (dem_h-DEM_RANGE_BOT_OFF) | Bottom of the height window for altimeter-reported photons. (dem_ht-DEM_RANGE_BOT_OFF) |
photon_window_top (Chunked Dataset) | FLOAT(UNLIMITED) | Top of the photon window (not_set) | meters Derived (h_dem+DEM_RANGE_TOP_OFF) | Top of the height window for altimeter-reported photons. (dem_ht+DEM_RANGE_TOP_OFF) |
surf_type (Chunked Dataset) | INTEGER_4(5, UNLIMITED) | Surface Type Flag (not_set) | counts Derived (ICESat-2 Surface Masks) | The surface type flag indicates the presence of a particular surface type at the coordinates of the reference track (rt_latitude, rt_longitude). Since a particular location may indicate multiple surface types, this flag is an array of 5 values in the order LAND, OCEAN, SEA_ICE, LAND_ICE, INLAND_WATER. 0=surface type not present; 1=surface type present. These values are derived from surface masks provided by the ICESat-2 Project Science Office. flag_values: 0, 1 flag_meanings : NOT_PRESENT PRESENT |
Group: /tof | ||||
h5es_id | (Attribute) | 12 | ||
Description | (Attribute) | Contains Time-of-Flight packet data for each TOF card in use. | ||
data_rate | (Attribute) | Parameters in this group are at the rate defined in each tof subgroup. | ||
Group: /tof/osc_corr | ||||
h5es_id | (Attribute) | 34 | ||
Description | (Attribute) | Contains oscillator correction data for each TOF card in use. | ||
data_rate | (Attribute) | Parameters in this group are at the oscillator-correction rate (0.1 hz). | ||
Label (Layout) |
Datatype (Dimensions) | long_name (standard_name) | units source | description |
delta_time (Chunked Dataset) | DOUBLE(UNLIMITED) | Delta Time (not_set) | seconds since granule_gps_epoch Derived (gps_seconds-granule_gps_epoch) | Elapsed seconds since granule_gps_epoch. |
osc_corr (Chunked Dataset) | DOUBLE(UNLIMITED) | oscillator correction (not_set) | hertz Derived: osc_corr=(2.95d8*delta_gps_sow)/(32*delta_PPSTag) | osc_corr is a hardware-dependent frequency-based correction for range. It is derived by computing the deltas of corresponding TOF status gps_sow and PPSTag values and using the equation provided. |
osc_flag (Chunked Dataset) | UINT_1_LE(UNLIMITED) | oscillator correction flag (not_set) | counts Derived: set to 1 if 1.05 < osc_corr > 0.95 | The osc_corr flag is use to determine if the corresponding osc_corr is within valid bounds. A non-zero value indicates the corresponding osc_corr should not be used as a range correction flag_values: 0, 1 flag_meanings : osc_corr_valid osc_corr_not_valid |