Attribute

Value

LocalGranuleID

simpl_l2a_20110901t150805_20110901t151445_001_1.h5

ProductionDateTime

2013-07-18T16:44:49.000000Z

LocalVersionID

VersionID

InputPointer

new_cf, tai-utc.dat, simpl_flights.txt, simpl_scenarios.txt, gimp30m_20120709_01.h5, gmted75_20120706_01.h5, dtu10mss_20120705_01.h5, egm96_20120705_01.h5, 11090112.hdr, 11090112.hgt, 11090112.tmp, 11090112.rh, 11090112.pwat, 11090118.hdr, 11090118.hgt, 11090118.tmp, 11090118.rh, 11090118.pwat, SIMPL201124454485_201124454885_A_1.lstx, SIMPL201124454485_201124454885_A_2.lstx, SIMPL201124454485_201124454885_B_1.lstx, SIMPL201124454485_201124454885_B_2.lstx, SIMPL201124454485_201124454885_C_1.lstx, SIMPL201124454485_201124454885_C_2.lstx, SIMPL201124454485_201124454885_D_1.lstx, SIMPL201124454485_201124454885_D_2.lstx, SIMPL201124454485_201124454885_A_3.lstx, SIMPL201124454485_201124454885_A_4.lstx, SIMPL201124454485_201124454885_B_3.lstx, SIMPL201124454485_201124454885_B_4.lstx, SIMPL201124454485_201124454885_C_3.lstx, SIMPL201124454485_201124454885_C_4.lstx, SIMPL201124454485_201124454885_D_3.lstx, SIMPL201124454485_201124454885_D_4.lstx, BD960_01Sep11_PPPK.out, DsESDTGlSIMPLL2A.001.desc

RangeBeginningTime

15:08:05.988467Z

RangeEndingTime

15:14:46.791991Z

RangeBeginningDate

2011-09-01

RangeEndingDate

2011-09-01

Flight_Location

New Hampshire, Maine, South East Quebec, Maryland

Flight_Number

1

Scenario_Number

1

identifier_product_doi_authority

http://dx.doi.org

featureType

timeSeries

ShortName

SIMPL_L2A

title

SIMPL L2A Elevation Data (HDF5)

comment

Data granules consist of HDF5 data and include corrected and geolocated SIMPL 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.

summary

The elevation data are the primary distribution product intended for public use and are used to create the ATLAS simulated data product. Each granule was created from a set of range corrected SIMPL data files. The provenance metadata shows the history that created the granule.

license

https://icesat-2.gsfc.nasa.gov/data/simpl/simpl_docs.php

references

https://icesat-2.gsfc.nasa.gov/data/simpl/simpl_docs.php (Documentation set for this product at the ICESat-2 Website), https://icesat-2.gsfc.nasa.gov/data/simpl/data/browse/index.html (Browse data for SIMPL at the ICESat-2 Website)

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 SIMPL Science Project Office

CitationforExternalPublication

The data used in this study were produced by the SIMPL Science Project Office at NASA/GSFC. The data archive site is TBD.

contributor_role

Data Originator, Investigator, Producer, Producer

contributor_name

Phillip Dabney (philip.w.dabney@nasa.gov), David E Harding (david.j.harding@nasa.gov), John DiMarzio (JohnDiMarzio@sgt-inc.com), Thomas E Neumann (thomas.neumann@nasa.gov)

creator_name

ICESat Science Investigator-led Processing System (I-SIPS)

creator_email

David.W.Hancock@nasa.gov

publisher_name

ICESat Science Investigator-led Processing System (I-SIPS)

publisher_email

David.W.Hancock@nasa.gov

publisher_url

https://icesat-2.gsfc.nasa.gov/data/simpl/data/browse/index.html

platform

GRC Lear-25 (Aircraft)

instrument

Slope Imaging Multi-polarization Photon-counting Lidar (SIMPL)

processing_level

L2A

date_created

2013-07-18T16:44:49.000000Z

spatial_coverage_type

Horizontal

history

2013-07-18T16:44:49.000000Z simpl_l2a Version 1.6 October 2012 SIMPL L2A PGE

geospatial_lat_min

6.01347001699906849E-154

geospatial_lat_max

6.01347001699906849E-154

geospatial_lon_min

6.01347001699906849E-154

geospatial_lon_max

6.01347001699906849E-154

geospatial_lat_units

degrees_north

geospatial_lon_units

degrees_east

keywords

Earth Science > Spectral/Engineering > Infrared Wavelengths > Sensor Counts > Photons

keywords_vocabulary

GCMD Science Keywords Version 6.0

naming_authority

http://dx.doi.org

project

Slope Imaging Multi-polarization Photon-counting Lidar (SIMPL)

time_type

UTC

date_type

J2000

time_coverage_start

2011-09-01T15:08:05.988467Z

time_coverage_end

2011-09-01T15:14:46.791991Z

time_coverage_duration

60

source

Aircraft measurements

HDFVersion

HDF5 1.8.9

identifier_file_uuid

a6b84c89-9303-4e11-8b5a-d0ed8bc322ca

identifier_product_doi

TBD

identifier_product_type

SIMPL_L2A

identifier_product_format_version

1.3

Conventions

CF-1.6

institution

National Aeronautics and Space Administration (NASA)

l2a_format_version

1.3

l2a_format_version_desc

Version number of the L2A granule format. This number is incremented whenever a change to the format of the granule is made. This allows the data user to create code that can handle multiple versions for the L2A granule.

Attribute

Value

description

This group contains structured, computer-parseable ECHO-style collection and inventory-level metadata.

Attribute

Value

DLLName

libDsESDTGlGLASPoly.001Sh.so

GranuleTimeDuration

60

SpatialSearchType

NotSupported

DataFileFormat

HDF5

ScienceMimeType

application/x-hdfeos

BrowseMimeType

application/x-hdfeos

BrowseOnlineMimeType

image/jpeg

ShortName

SIMPL_L2A

LongName

SIMPL L2A Elevation Data (HDF5)

CollectionDescription

Data granules consist of HDF5 data and include corrected and geolocated SIMPL 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.

VersionID

8

CitationforExternalPublication

The data used in this study were produced by the SIMPL Science Project Office at NASA/GSFC. The data archive site is TBD.

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 SIMPL Science Project Office

TemporalKeyword

Day

SpatialKeyword

Global

Attribute

Value

Flightline

AdditionalAttributesContainer

identifier_product_doi

AdditionalAttributesContainer

identifier_file_uuid

AdditionalAttributesContainer

identifier_product_doi_authority

AdditionalAttributesContainer

Attribute

Value

AdditionalAttributeDatatype

string

AdditionalAttributeDescription

The unique number based on time of day assigned to each data.

AdditionalAttributeName

Flightline

ParameterUnitsofMeasurement

flightlines

ParameterRangeBegin

0

ParameterRangeEnd

3000

Attribute

Value

AdditionalAttributeDatatype

varchar

AdditionalAttributeDescription

Universally unique identifier for this data product's files

AdditionalAttributeName

identifier_file_uuid

Attribute

Value

AdditionalAttributeDatatype

varchar

AdditionalAttributeDescription

Digital object identifier that uniquely identifies this data product

AdditionalAttributeName

identifier_product_doi

Attribute

Value

ParameterValue

TBD

Attribute

Value

AdditionalAttributeDatatype

varchar

AdditionalAttributeDescription

URL of the digital object identifier resolving authority

AdditionalAttributeName

identifier_product_doi_authority

Attribute

Value

ParameterValue

http://dx.doi.org

Attribute

Value

PrimaryCSDT

n-Dim Array of Records

IndirectReference

flight-lines

Implementation

HDF5

CSDTComments

Data for each flight is divided into one minute granules.

Attribute

Value

SIMPL_L0

CollectionAssociationContainer

SIMPL_L1A

CollectionAssociationContainer

SIMPL_L1B

CollectionAssociationContainer

SATLAS_L2A

CollectionAssociationContainer

Attribute

Value

CollectionType

Dependent

CollectionUse

Data granules consist of HDF5 derived SIMPL data that simulate ICESat-2 ATLAS geolocated elevation data in meters. All measured/simulated parameters are in science units.

ShortName

SATLAS_L2A

VersionID

1

Attribute

Value

CollectionType

Science Associated

CollectionUse

The initial collection of time-of-flight, status and housekeeping data collected from the instrument.

ShortName

SIMPL_L0

VersionID

1

Attribute

Value

CollectionType

Science Associated

CollectionUse

Data granules consist of HDF5 data and include decommutated raw SIMPL data in engineering units reformatted into HDF5. Some parameters are converted for data handling and ordering.

ShortName

SIMPL_L1A

VersionID

1

Attribute

Value

CollectionType

Input

CollectionUse

Data granules consist of HDF5 data and include SIMPL range data in meters from measuring the distance from SIMPL to each detected photon. Also includes reformatted GPS/IMU position/attitude information. All measured parameters are converted to science units.

ShortName

SIMPL_L1B

VersionID

8

Attribute

Value

Data_Originator

ContactOrganizationContainer

Archive

ContactOrganizationContainer

Attribute

Value

Role

Archive

HoursofService

M-F, 8:00am to 5:00pm, Eastern Time

ContactInstructions

Contact by e-mail first.

ContactOrganizationName

ICESat Science Investigator-led Processing System (I-SIPS)

StreetAddress

Code 615.0 NASA Goddard Space Flight Center 8800 Greenbelt Road

City

Greenbelt

StateProvince

Maryland

PostalCode

20771

Country

USA

TelephoneNumber

757-824-1036

TelephoneNumberType

Facsimile

ElectronicMailAddress

David.W.Hancock@nasa.gov

Attribute

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

Code 615.0 NASA Goddard Space Flight Center 8800 Greenbelt Road

City

Greenbelt

StateProvince

Maryland

PostalCode

20771

Country

USA

TelephoneNumber

757-864-1238

TelephoneNumberType

Voice

ElectronicMailAddress

David.W.Hancock@nasa.gov

Attribute

Value

Dabney

ContactPersonContainer

Harding

ContactPersonContainer

DiMarzio

ContactPersonContainer

Neumann

ContactPersonContainer

Attribute

Value

Role

Data Originator

HoursofService

M-F, 8:00am to 4:30pm. Eastern Time.

ContactInstructions

None

ContactJobPosition

Instrument Engineer.

ContactFirstName

Phillip

ContactMiddleName

ContactLastName

Dabney

StreetAddress

Code 615.0 NASA Goddard Space Flight Center, 8800 Greenblet Road

City

Greenbelt

StateProvince

Maryland

PostalCode

20771

Country

USA

TelephoneNumber

301-614-5858

TelephoneNumberType

Voice

ElectronicMailAddress

philip.w.dabney@nasa.gov

Attribute

Value

Role

Producer

HoursofService

M-F, 8:00am to 4:30pm Eastern Time

ContactInstructions

None.

ContactJobPosition

SIPS manager

ContactFirstName

John

ContactLastName

DiMarzio

StreetAddress

Code 615.0 NASA Goddard Space Flight Center 8800 Greenbelt Road

City

Greenbelt

StateProvince

Maryland

PostalCode

20771

Country

USA

TelephoneNumber

301-614-5893

TelephoneNumberType

Voice

ElectronicMailAddress

JohnDiMarzio@sgt-inc.com

Attribute

Value

Role

Investigator

HoursofService

M-F, 8:00am to 4:30pm Central Time

ContactInstructions

None

ContactJobPosition

Pricipal Investigator

ContactFirstName

David

ContactMiddleName

E

ContactLastName

Harding

StreetAddress

Code 615.0 NASA Goddard Space Flight Center 8800 Greenbelt Road

City

Greenbelt

StateProvince

Maryland

PostalCode

20771

Country

USA

TelephoneNumber

301-614-6503

TelephoneNumberType

Voice

ElectronicMailAddress

david.j.harding@nasa.gov

Attribute

Value

Role

Producer

HoursofService

M-F, 8:00am to 4:30pm Eastern Time

ContactInstructions

None

ContactJobPosition

ICESAt-2 Deputy Project Scientist

ContactFirstName

Thomas

ContactMiddleName

E

ContactLastName

Neumann

StreetAddress

Code 615.0 NASA Goddard Space Flight Center 8800 Greenbelt Road

City

Greenbelt

StateProvince

Maryland

PostalCode

20771

Country

USA

TelephoneNumber

301-614-5923

TelephoneNumberType

Voice

ElectronicMailAddress

thomas.neumann@nasa.gov

Attribute

Value

Engineering

DisciplineTopicParametersContainer

Attribute

Value

ECSDisciplineKeyword

Earth Science

ECSTopicKeyword

Spectral/Engineering

ECSTermKeyword

Infrared Wavelengths

ECSVariableKeyword

Sensor Counts

Attribute

Value

ECSParameterKeyword

Photons

Attribute

Value

RevisionDate

2012-06-25

SuggestedUsage

The elevation data are the primary distribution product intended for public use and are used to create the ATLAS simulated data product. Each granule was created from a set of range corrected SIMPL data files. The provenance metadata shows the history that created the granule.

ProcessingCenter

GSFC I-SIPS

ArchiveCenter

GSFC I-SIPS

VersionDescription

Reprocessed

DatasetDisclaimerPointer

https://icesat-2.gsfc.nasa.gov/data/simpl/simpl_docs.php

ECSCollectionGuidePointer

https://icesat-2.gsfc.nasa.gov/data/simpl/simpl_docs.php

ECSCollectionGuidePointerComment

Documentation set for this product at the ICESat-2 Website

MiscellaneousInformationPointer

https://icesat-2.gsfc.nasa.gov/data/simpl/data/browse/index.html

MiscellaneousInformationPointerComment

Browse data for SIMPL at the ICESat-2 Website

Attribute

Value

Aircraft

PlatformContainer

Attribute

Value

PlatformShortName

Aircraft

PlatformLongName

GRC Lear-25

PlatformType

Aircraft

Attribute

Value

SIMPL

InstrumentContainer

GPS

InstrumentContainer

IMU

InstrumentContainer

Attribute

Value

InstrumentShortName

GPS

InstrumentLongName

Global Positioning System Receiver

InstrumentTechnique

Radionavigation

NumberofSensors

1

Attribute

Value

GPS_Receiver

SensorContainer

Attribute

Value

SensorShortName

GPS Receiver

SensorLongName

Dual frequency GPS receiver

SensorTechnique

Pseudorange and carrier phase

Attribute

Value

InstrumentShortName

IMU

InstrumentLongName

Inertial Measurement Unit

InstrumentTechnique

Inertial Measurement

NumberofSensors

1

Attribute

Value

IMU

SensorContainer

Attribute

Value

SensorShortName

IMU

SensorLongName

Inertial Measurement Unit

SensorTechnique

Inertial Measurement

Attribute

Value

InstrumentShortName

SIMPL

InstrumentLongName

Slope Imaging Multi-polarization Photon-counting Lidar

InstrumentTechnique

Laser Altimetry and Light Detection and Radar

NumberofSensors

2

Attribute

Value

LA1064

SensorContainer

LA532

SensorContainer

Attribute

Value

SensorShortName

LA1064

SensorLongName

Laser Altimeter 1064

SensorTechnique

Exact Measurement of Time between Transmit Pulse and receive photon.

Attribute

Value

wavelength

SensorCharacteristicContainer

tof

SensorCharacteristicContainer

Attribute

Value

SensorCharacteristicName

tof

SensorCharacteristicDescription

detector

SensorCharacteristicDataType

varchar

SensorCharacteristicUnit

counts

SensorCharacteristicValue

0-TBD

Attribute

Value

SensorCharacteristicName

wavelength

SensorCharacteristicDescription

transmission

SensorCharacteristicDataType

varchar

SensorCharacteristicUnit

nanometer

SensorCharacteristicValue

1064 nm

Attribute

Value

SensorShortName

LA532

SensorLongName

Laser Altimeter 532

SensorTechnique

Exact Measurement of Time between Transmit Pulse and receive photon

Attribute

Value

wavelength

SensorCharacteristicContainer

tof

SensorCharacteristicContainer

Attribute

Value

SensorCharacteristicName

tof

SensorCharacteristicDescription

detector

SensorCharacteristicDataType

varchar

SensorCharacteristicUnit

counts

SensorCharacteristicValue

0-TBD

Attribute

Value

SensorCharacteristicName

wavelength

SensorCharacteristicDescription

transmission

SensorCharacteristicDataType

varchar

SensorCharacteristicUnit

nanometer

SensorCharacteristicValue

532nm

Attribute

Value

ProcessingLevelDescription

Sensor Measurements

ProcessingLevelID

L2A

Attribute

Value

SpatialCoverageType

Horizontal

WestBoundingCoordinate

-180.0

NorthBoundingCoordinate

90.0

EastBoundingCoordinate

180.0

SouthBoundingCoordinate

-90.0

Attribute

Value

StorageMedium

Online

Attribute

Value

TimeType

UTC

DateType

J2000

TemporalRangeType

Continuous Range

PrecisionofSeconds

2

EndsatPresentFlag

Y

RangeBeginningDate

2010-12-08

RangeBeginningTime

00:00:00

RangeEndingDate

2010-12-08

RangeEndingTime

00:00:00

Attribute

Value

ShortName

SIMPL_L2A

VersionID

RangeBeginningTime

15:08:05.988467Z

RangeEndingTime

15:14:46.791991Z

RangeBeginningDate

2011-09-01

RangeEndingDate

2011-09-01

Attribute

Value

LocalGranuleID

simpl_l2a_20110901t150805_20110901t151445_001_1.h5

ProductionDateTime

2013-07-18T16:44:49.000000Z

LocalVersionID

Attribute

Value

InputPointer

new_cf, tai-utc.dat, simpl_flights.txt, simpl_scenarios.txt, gimp30m_20120709_01.h5, gmted75_20120706_01.h5, dtu10mss_20120705_01.h5, egm96_20120705_01.h5, 11090112.hdr, 11090112.hgt, 11090112.tmp, 11090112.rh, 11090112.pwat, 11090118.hdr, 11090118.hgt, 11090118.tmp, 11090118.rh, 11090118.pwat, SIMPL201124454485_201124454885_A_1.lstx, SIMPL201124454485_201124454885_A_2.lstx, SIMPL201124454485_201124454885_B_1.lstx, SIMPL201124454485_201124454885_B_2.lstx, SIMPL201124454485_201124454885_C_1.lstx, SIMPL201124454485_201124454885_C_2.lstx, SIMPL201124454485_201124454885_D_1.lstx, SIMPL201124454485_201124454885_D_2.lstx, SIMPL201124454485_201124454885_A_3.lstx, SIMPL201124454485_201124454885_A_4.lstx, SIMPL201124454485_201124454885_B_3.lstx, SIMPL201124454485_201124454885_B_4.lstx, SIMPL201124454485_201124454885_C_3.lstx, SIMPL201124454485_201124454885_C_4.lstx, SIMPL201124454485_201124454885_D_3.lstx, SIMPL201124454485_201124454885_D_4.lstx, BD960_01Sep11_PPPK.out, DsESDTGlSIMPLL2A.001.desc

Attribute

Value

Flight_Location

New Hampshire, Maine, South East Quebec, Maryland

Flight_Number

1

Scenario_Number

1

identifier_product_doi

TBD

identifier_file_uuid

a6b84c89-9303-4e11-8b5a-d0ed8bc322ca

identifier_product_doi_authority

http://dx.doi.org

Attribute

Value

Description

This group contains groups of segmented altimeter-related parameters. The altimeter segment temporal length is defined by the number of laser shots specified in the metadata parameter [alt_seg_shots]. Parameters in each segment have a 1-to-1 correspondence with the parameters in other segments. For example the times with segment 2 of the time group correspond to the data within segment 2 of the hist subgroups. There is one instance of this group within this granule.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

delta_time_start

DOUBLE
(UNLIMITED)

delta_time_start
(time)

seconds

Elapsed seconds (since first data point in granule) at the start of this time interval

Derived (gps_seconds-gps_sec_offset)

NOT_SET

delta_time_stop

DOUBLE
(UNLIMITED)

delta_time_stop
(time)

seconds

Elapsed seconds (since first data point in granule) at the start of this time interval

Derived (gps_seconds-gps_sec_offset)

delta_time_start

Attribute

Value

Description

This group contains DEM and aircraft location information for each segment. The DEM elevation is derived from a computed reference track using the latitude and longitude parameters provided by the Applanix INS/GPS. In addition, this group contains the elevation window filters used for accepting photons for inclusion in the photon channel groups. There is one instance of this group within the file.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

dem_flag

INTEGER
(UNLIMITED)

dem_flag
(dem_flag)

UNITS

Flag indicating source of DEM. 0=none, 1=GIMP, 2=GMTED2010, 3=MSS

Derived, TBD

delta_time_start

elev_bot_window

FLOAT
(UNLIMITED)

elev_bot_window
(elev_bot_window)

meters

Minimum elevation for altimeter-reported photons

Derived (elev_dem-DEM_RANGE_BOT_OFF)

delta_time_start

elev_dem

FLOAT
(UNLIMITED)

elev_dem
(elev_dem)

meters

WGS84 DEM elevation

DEM ANC File

delta_time_start

elev_geoid

FLOAT
(UNLIMITED)

elev_geoid
(elev_geoid)

meters

WGS84 DEM elevation

DEM ANC File

delta_time_start

elev_top_window

FLOAT
(UNLIMITED)

elev_top_window
(elev_top_window)

meters

Maximum elevation for altimeter-reported photons

Derived (elev_dem+DEM_RANGE_TOP_OFF)

delta_time_start

latitude_dem

DOUBLE
(UNLIMITED)

lat_dem
(latitude)

degrees

GPS/INS latitude used to determine location for DEM

L1A INS

delta_time_start

longitude_dem

DOUBLE
(UNLIMITED)

lon_dem
(longitude)

degrees

GPS/INS longitude used to determine location for DEM

L1A INS

delta_time_start

noise_bot_window

FLOAT
(UNLIMITED)

noise_bot_window
(noise_bot_window)

meters

Minimum elevation for noise rate calculation.

Derived (elev_dem-NOISE_RANGE_BOT_OFF)

delta_time_start

noise_top_window

FLOAT
(UNLIMITED)

noise_top_window
(noise_top_window)

meters

Maximum elevation for noise rate calculation

Derived (elev_dem+NOISE_RANGE_TOP_OFF)

delta_time_start

transtime

FLOAT
(UNLIMITED)

transtime
(transtime)

seconds

Transit time of the laser light to photon bounce

Derived (ht_ell/(speed_light/2.0))

delta_time_start

Attribute

Value

Description

This group contains subgroups of per-channel histograms. There is one instance of this group within the Altimetry group.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

DS_Histogram_Bins

INTEGER
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

Attribute

Value

Description

This group contains subgroups of per-channel histograms. There is one instance of this group within the Altimetry group.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

elev_top_hist

FLOAT
(UNLIMITED)

elev_top_hist
(height)

meters

Elevation height to the top bin of the altimetry histogram

Derived

delta_time_start

histogram

INTEGER (800)
(UNLIMITED)

altimetry_histogram
(histogram)

count

altimetry histogram - count of the number of photons in each defined elevation bin. Dimensions are time and bin_number.

Derived

delta_time_start

n_hist_shots

INTEGER
(UNLIMITED)

n_hist_shots
(n_points)

count

Number of shots within the histogram interval.

Derived

delta_time_start

noise_rate

FLOAT
(UNLIMITED)

noise_rate
(noise_rate)

NOT_SET

Derived (number of photons in the noise range window per seccond)

Derived

delta_time_start

Attribute

Value

Description

This group contains attributes which describe parameters and constants used in computations described by the SIMPL ATBDs.

egm96_dem_citation

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_dem_source

June 15, 2005; downloaded from http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm96/egm96.html

gmted_dem_citation

Danielson, J.J., and Gesch, D.B., 2011, Global multi-resolution terrain elevation data 2010 (GMTED2010): U.S. Geological Survey Open-File Report 2011

gmted_dem_source

GMTED 7.5 arc-second GEOTIFFs; downloaded from http://http://topotools.cr.usgs.gov/GMTED_viewer.

gimp_dem_citation

Howat I.M and A. Negrete, in prep, A high-resolution ice mask for the Greenland Ice Sheet and peripheral glaciers and icecaps.

gimp_dem_source

Version 1.2 (December 16, 2011), downloaded from ftp://ftp-bprc.mps.ohio-state.edu/downloads/gdg/gimpicemask

dtu10_dem_citation

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_dem_source

DTU10MSS_1min.mss; downloaded June 22, 2012 from http://www.space.dtu.dk/English/Research/Scientific_data_and_models/downloaddata.aspx

start_gpsweek

627

start_gpsweek_desc

GPS week number for the first data point in the granule.

end_gpsweek

627

end_gpsweek_desc

GPS week number for the last data point in the granule.

start_gpssow

400100.98846697807

start_gpssow_desc

GPS seconds-of-week for the first data point in the granule.

end_gpssow

400501.79199099541

end_gpssow_desc

GPS seconds-of-week for the last data point in the granule.

gps_sec_offset

998924900.98846698

gps_sec_offset_desc

Number of GPS seconds since GPS epoch (1980-01-06T00:00:00.000000Z UTC) corresponding to the first data point within the granule. Add this value to the data [delta_time] parameter to compute [gps_seconds] for each data point.

start_latitude

6.01347001699906849E-154

start_latitude_desc

Best-available latitude (product-specific) in degrees at first data point within the granule.

start_longitude

6.01347001699906849E-154

start_longitude_desc

Best-available longitude (product-specific) in degrees at first data point within the granule.

end_latitude

6.01347001699906849E-154

end_latitude_desc

Best-available latitude (product-specific) in degrees at last data point within the granule.

end_longitude

6.01347001699906849E-154

end_longitude_desc

Best-available longitude (product-specific) in degrees at last data point within the granule.

granule_beginning_time

15:08:05.988467Z

granule_beginning_time_desc

UTC time of the first data point within the granule.

granule_ending_time

15:14:46.791991Z

granule_ending_time_desc

UTC time of the last data point within the granule.

granule_beginning_date

2011-09-01

granule_beginning_date_desc

UTC date of the first data point within the granule.

granule_ending_date

2011-09-01

granule_ending_date_desc

UTC date of the last data point within the granule.

control

cf_name=new_cf
UUID=a6b84c89-9303-4e11-8b5a-d0ed8bc322ca
IN_ANC_DTU10=dtu10mss_20120705_01.h5 630720015 3786480015
IN_ANC_EGM96=egm96_20120705_01.h5 630720015 3786480015
IN_ANC_GIMP=gimp30m_20120709_01.h5 630720015 3786480015
IN_ANC_GMTED=gmted75_20120706_01.h5 630720015 3786480015
IN_ANC_FLIGHT=simpl_flights.txt 998924900.988467 998925301.791991
IN_ANC_SCENARIO=simpl_scenarios.txt 998924900.988467 998925301.791991
IN_ESDT=DsESDTGlSIMPLL2A.001.desc 998924900.988467 998925301.791991
IN_ANC_MET_HDR=11090112.hdr 998892015 998935214
IN_ANC_MET_HDR=11090118.hdr 998913615 998956814
IN_ANC_MET_HGT=11090112.hgt 998892015 998935214
IN_ANC_MET_HGT=11090118.hgt 998913615 998956814
IN_ANC_MET_PWAT=11090112.pwat 998892015 998935214
IN_ANC_MET_PWAT=11090118.pwat 998913615 998956814
IN_ANC_MET_RH=11090112.rh 998892015 998935214
IN_ANC_MET_RH=11090118.rh 998913615 998956814
IN_ANC_MET_TMP=11090112.tmp 998892015 998935214
IN_ANC_MET_TMP=11090118.tmp 998913615 998956814
IN_INS=BD960_01Sep11_PPPK.out 998870415 998956814
IN_ANC_TAIUTC=tai-utc.dat 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_A_1.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_A_2.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_B_1.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_B_2.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_C_1.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_C_2.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_D_1.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_D_2.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_A_3.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_A_4.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_B_3.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_B_4.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_C_3.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_C_4.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_D_3.lstx 998924900.988467 998925301.791991
IN_L1B_ASCII=SIMPL201124454485_201124454885_D_4.lstx 998924900.988467 998925301.791991
OUT_L2A_H5=simpl_l2a_20110901t150805_20110901t151445_001_1.h5 998924900.988467 998925301.791991

control_desc

PGE-specific control file used to generate this granule. To re-use, replace breaks (BR) with linefeeds.

Attribute

Value

Description

This group has attributes which contain general control parameters and constants.

simpl_clock_freq

0.0000000

simpl_clock_freq_desc

Nominal SIMPL clock frequency.

simpl_range_conv

0.0000000

simpl_range_conv_desc

SIMPL range conversion factor.

Attribute

Value

Description

This group has attributes which contain geolocation control parameters and constants.

SIMPL_BIAS_1064

-3.1299999999999999 -2.2799999999999998 0.0000000000000000

SIMPL_BIAS_1064_desc

1064 SIMPL bias coefficients (SIMPL frame to IMU); roll, pitch, yaw (mrad)

SIMPL_BIAS_532

-3.1299999999999999 -2.2799999999999998 0.0000000000000000

SIMPL_BIAS_532_desc

532 SIMPL bias coefficients (SIMPL frame to IMU); roll, pitch, yaw (mrad)

IMU_BIAS

0.0000000000000000 0.0000000000000000 0.0000000000000000

IMU_BIAS_desc

IMU bias coefficients (IMU to vehicle frame); roll, pitch, yaw (mrad)

SIMPL_LRP_OFF

0.0000000000000000 0.0000000000000000 0.0000000000000000

SIMPL_LRP_OFF_desc

Laser reference point offsets; roll, pitch, yaw (mrad)

SIMPL_IMU_OFF

0.0000000000000000 0.0000000000000000 0.0000000000000000

SIMPL_IMU_OFF_desc

IMU origin ofsets; roll, pitch, yaw (mrad)

Attribute

Value

Description

The group contains parameter attributes related tothe altimetry and atmosphere histograms.

alt_hist_bin_size

3.0000000

alt_hist_bin_size_desc

Size is meters of the altimetry histogram bins.

alt_hist_bin_top_off

500.00000

alt_hist_bin_top_off_desc

Meters added to the nominal elevation to define the top of the altimetry histogram range window.

alt_hist_bin_bot_off

100.00000

alt_hist_bin_bot_off_desc

Meters subtracted from the nominal elevation to define the top of the noise computation range window.

Attribute

Value

Description

The group contains parameter attributes related tothe photon range window settings

dem_range_top_off

800.00000

dem_range_top_off_desc

Meters added to the DEM elevation to define the top of the photon range window.

dem_range_bot_off

200.00000

dem_range_bot_off_desc

Meters subtracted from the DEM elevation to define the bottom of the photon range window.

mss_range_top_off

100.00000

mss_range_top_off_desc

Meters added to the MSS elevation to define the top of the photon range window.

mss_range_bot_off

100.00000

mss_range_bot_off_desc

Meters subtracted from the MSS elevation to define the bottom of the photon range window.

noise_range_top_off

-20.000000

noise_range_top_off_desc

Meters added to the nominal elevation to define the top of the noise computation range window.

noise_range_bot_off

120.00000

noise_range_bot_off_desc

Meters subtracted from the nominal elevation to define the bottom of the noise computation range window.

Attribute

Value

Description

The group contains parameter attributes defining the sizes of each segment on the product.

alt_seg_shots

800

alt_seg_shots_desc

Number of laser shots defining an altimetry segment.

Attribute

Value

Description

This group contains flight and instrument-related information provided by the SIMPLEL instrument team within the SIMPLEL Day-by-Day flight log.

flight_version

2013-07-17T00:00:00.000000Z 15

flight_version_desc

Version number of the ancillary flight file.

flight_number

1

flight_number_desc

Incremental flight number

scenario_number

1

scenario_number_desc

Associated simpl configuration scenario number

gps_rate

0

gps_rate_desc

Data rate of the GPS (Hz)

imu_rate

200

imu_rate_desc

Data rate of the IMU (Hz)

laser_rate

11400

laser_rate_desc

Data rate of the Laser (Hz)

flight_location

New Hampshire, Maine, South East Quebec, Maryland

flight_location_desc

Primary location of the flight

label

01Sep2011_SIMPL_NH_ME_QC_MD

label_desc

Unique label associated with the flight

comments

New Hampshire: Hubbard Brook and Bartlett Forests, DBSAR Lines 1 and 2 at 2.6 km (no SIMPL lines); Maine: Howland and Penobscot Forests, SIMPL Lines 1 and 4 at 2.0 km; South East Quebec: ICESat ground tracks, SIMPL Lines 1 and 3 at 2.6 km; Maryland: Chinco

comments_desc

Comments from the SIMPLEL flight team

flight_start_utc

2011-09-01T13:33:10.000000Z

flight_start_utc_desc

UTC start time of the flight in CCSDS-A format

flight_end_utc

2011-09-01T20:20:01.000000Z

flight_end_utc_desc

UTC stop time of the flight in CCSDS-A format

scenario_version

2013-07-17T00:00:00.000000Z 2

scenario_version_desc

Version number of the ancillary scenario file

scenario_utc_time

2011-09-01T00:00:00.000000Z

scenario_utc_time_desc

UTC start time of the scenario in CCSDS-A format

channel_comment_001

board malfunction; no data

channel_comment_002

board malfunction; no data

channel_comment_003

extremely weak water surface return, no volume scattering

channel_comment_004

water surface return only, no volume scattering signal echoes: moderately strong laser after-pulse at 1.4 m, extremely weak rcv reflections at 3.0 & 4.4 m

channel_comment_005

extremely weak water surface return, no volume scattering

channel_comment_006

water surface return only, no volume scattering signal echoes: moderately strong laser after-pulse at 1.4 m, extremely weak rcv reflections at 3.0 & 4.4 m

channel_comment_007

broken fiber; very few photons

channel_comment_008

water surface return only, no volume scattering signal echoes: moderately strong laser after-pulse at 1.4 m, extremely weak rcv reflections at 3.0 & 4.4 m

channel_comment_009

board malfunction; no data

channel_comment_010

board malfunction; no data

channel_comment_011

no water surface return, volume scattering only

channel_comment_012

both water surface return and volume scattering signal echoes: weak laser after-pulse at 1.4 m, extremely weak rcv reflection at 3.0 m

channel_comment_013

no water surface return, volume scattering only

channel_comment_014

both water surface return and volume scattering signal echoes: weak laser after-pulse at 1.4 m, extremely weak rcv reflection at 3.0 m

channel_comment_015

no water surface return, volume scattering only

channel_comment_016

both water surface return and volume scattering signal echoes: weak laser after-pulse at 1.4 m, extremely weak rcv reflection at 3.0 m

file_name_1064

A_1 A_2 B_1 B_2 C_1 C_2 D_1 D_2

file_name_532

A_3 A_4 B_3 B_4 C_3 C_4 D_3 D_4

reference_channel_1064

6

reference_channel_1064_desc

Representative channel for 1064

channel_1064

1 2 3 4 5 6 7 8

channel_1064_desc

Channel number for each 1064 channel

channel_1064_flag

1 1 0 0 0 0 0 0

channel_1064_flag_desc

Channel flag (0=processed, 1=skipped)

power_1064_mw

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

power_1064_mw_desc

Power for each 1064 channel (mW)

rec_power_1064_mw

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

rec_power_1064_mw_desc

Received power for each 1064 channel (mW)

filter_1064

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

filter_1064_desc

Filter for each 1064 channel

raw_energy_1064_u

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

raw_energy_1064_u_desc

Raw energy for each 1064 channel (u)

filt_energy_1064_u

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

filt_energy_1064_u_desc

Filtered energy for each 1064 channel (u)

path_length_1064_mm

0.0000000 0.0000000 -6880.0000 -6270.0000 -7310.0000 -6760.0000 0.0000000 -6690.0000

path_length_1064_mm_desc

Path length for each 1064 fiber (mm)

angle_1064_mrad

-3.3000000 -3.3000000 -1.1000000 -1.1000000 1.1000000 1.1000000 3.3000000 3.3000000

angle_1064_mrad_desc

Angle of each 1064 connector

offset_on_ground_1064_m

-8.2500000 -8.2500000 -2.7500000 -2.7500000 2.7500000 2.7500000 8.2500000 8.2500000

offset_on_ground_1064_m_desc

Roll offset on groundfor each 1064 channel (m)

elevation_1064_mrad

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

elevation_1064_mrad_desc

Elevation for each 1064 connector (mrad)

offset2_on_ground_1064_m

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

offset2_on_ground_1064_m_desc

Pitch offset on groundfor each 1064 channel (m)

reference_channel_532

14

reference_channel_532_desc

Representative channel for 532

channel_532

9 10 11 12 13 14 15 16

channel_532_desc

Channel number for each 532 channel

channel_532_flag

1 1 0 0 0 0 0 0

channel_532_flag_desc

Channel flag (0=processed, 1=skipped)

power_532_mw

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

power_532_mw_desc

Power for each 532 channel (mW)

rec_power_532_mw

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

rec_power_532_mw_desc

Received power for each 532 channel (mW)

filter_532

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

filter_532_desc

Filter for each 532 channel

raw_energy_532_u

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

raw_energy_532_u_desc

Raw energy for each 532 channel (u)

filtered_energy_532_u

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

filtered_energy_532_u_desc

Filtered energy for each 532 channel (u)

path_length_532_mm

0.0000000 0.0000000 -6200.0000 -6600.0000 -6770.0000 -6990.0000 -6800.0000 -7010.0000

path_length_532_mm_desc

Path length for each 532 fiber (mm)

angle_532_mrad

-3.3000000 -3.3000000 -1.1000000 -1.1000000 1.1000000 1.1000000 3.3000000 3.3000000

angle_532_mrad_desc

Angle of each 532 connector

offset_on_ground_532_m

-8.2500000 -8.2500000 -2.7500000 -2.7500000 2.7500000 2.7500000 8.2500000 8.2500000

offset_on_ground_532_m_desc

Roll offset on ground of each 532 channel (m)

elevation_532_mrad

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

elevation_532_mrad_desc

Elevation for each 532 connector (mrad)

offset2_on_ground_532_m

0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000 0.0000000

offset2_on_ground_532_m_desc

Pitch offset on ground for each 532 channel (m)

num_poi

0

num_poi_desc

Number of points-of-interest for the flight

Attribute

Value

Description

This group contains data from L1A INS files. The L1A INS is created by the ground processing performed by the Airborne Terrain Mapping (ATM) group located at the NASA Wallops Flight Facility using the Applanix (Applied Analytics Corporation) post processing software.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

delta_time

DOUBLE
(UNLIMITED)

elapsed time
(time)

seconds

Elapsed seconds since first TOF data point in granule

Derived (gps_seconds-metadata.gps_sec_offset)

delta_time

Attribute

Value

Description

This group contains attitude related parameters from L1A INS files. There is one instance of this group within the ins group.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

heading

DOUBLE
(UNLIMITED)

heading
(heading)

degrees

Platform heading angle (heading) computed by GPS/INS routines

L1A INS Data

delta_time

pitch

DOUBLE
(UNLIMITED)

pitch
(pitch)

degrees

Pitch angle computed by GPS/INS routines

L1A INS Data

delta_time

roll

DOUBLE
(UNLIMITED)

roll
(roll)

degrees

Roll angle computed by GPS/INS routines

L1A INS Data

delta_time

wander

DOUBLE
(UNLIMITED)

wander
(wander)

degrees

Platform wander angle computed by GPS/INS routines

L1A INS Data

delta_time

Attribute

Value

Description

This group contains gelocation-related parameters from L1A INS files. There is one instance of this group within the ins group.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

altitude

DOUBLE
(UNLIMITED)

altitude
(altitude)

meters

Height above WGS84 ellipsoid

L1A INS Data

delta_time

latitude

DOUBLE
(UNLIMITED)

latitude
(latitude)

degrees_north

Latitude, WGS84, North=+

L1A INS Data

delta_time

longitude

DOUBLE
(UNLIMITED)

longitude
(longitude)

degrees_east

Longitude, WGS84, East=+

L1A INS Data

delta_time

Attribute

Value

Description

This group contains location related parameters from L1A INS files. There is one instance of this group within the ins group.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

xBdyF

DOUBLE
(UNLIMITED)

xBdyF
(xBdyF)

meters/second2

x body specific force computed by GPS/INS routines

L1A INS Data

delta_time

xBdyVel

DOUBLE
(UNLIMITED)

xBdyVel
(xBdyVel)

degrees/second

x body angular rate computed by GPS/INS routines

L1A INS Data

delta_time

x_waVelocity

DOUBLE
(UNLIMITED)

xVel
(xVel)

meters/second

x w.a. velocity

L1A INS Data

delta_time

yBdyF

DOUBLE
(UNLIMITED)

yBdyF
(yBdyF)

meters/second2

y body specific force computed by GPS/INS routines

L1A INS Data

delta_time

yBdyVel

DOUBLE
(UNLIMITED)

yBdyVel
(yBdyVel)

degrees/second

y body angular rate computed by GPS/INS routines

L1A INS Data

delta_time

y_waVelocity

DOUBLE
(UNLIMITED)

yVel
(yVel)

meters/second

y w.a. velocity

L1A INS Data

delta_time

zBdyF

DOUBLE
(UNLIMITED)

zBdyF
(zBdyF)

meters/second2

z body specific force computed by GPS/INS routines

L1A INS Data

delta_time

zBdyVel

DOUBLE
(UNLIMITED)

zBdyVel
(zBdyVel)

degrees/second

z body angular rate computed by GPS/INS routines

L1A INS Data

delta_time

z_waVelocity

DOUBLE
(UNLIMITED)

zVel
(zVel)

meters/second

z w.a. velocity

L1A INS Data

delta_time

Attribute

Value

Description

This group contains tropospheric parameters used to correct the Novatel INS range prior to performing the geolocation of each photon. These parameters are calculated at a shot interval defined by the metadata parameter [MET_SEG_SHOTS]. There is one instance of this group within the granule

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

delta_time

DOUBLE
(UNLIMITED)

delta_time
(time)

seconds

Elapsed seconds (since first data point in granule)

Derived (gps_seconds-gps_sec_offset)

NOT_SET

range_1064_dry_trop_corr

FLOAT
(UNLIMITED)

range_1064_dry_trop_corr
(range_1064_dry_trop_corr)

meters

Additive 1064 dry troposphere range correction

Derived (Trop ATBD)

delta_time

range_1064_wet_trop_corr

FLOAT
(UNLIMITED)

range_1064_wet_trop_corr
(range_1064_wet_trop_corr)

meters

Additive 1064 wet troposphere range correction

Derived (Trop ATBD)

delta_time

range_532_dry_trop_corr

FLOAT
(UNLIMITED)

range_532_dry_trop_corr
(range_532_dry_trop_corr)

meters

Additive 532 dry troposphere range correction

Derived (Trop ATBD)

delta_time

range_532_wet_trop_corr

FLOAT
(UNLIMITED)

range_532_wet_trop_corr
(range_532_wet_trop_corr)

meters

Additive 532 wet troposphere range correction

Derived (Trop ATBD)

delta_time

Attribute

Value

Description

This group contains subgroups of per-channel photon parameters. Each photon has been located by geolocation routines which account for pointing angle and aircraft roll/pitch/yaw. Preliminary ranges input to the geolocation routines have been corrected for frequency-dependent wet and dry tropospheric delays. The resulting elevations retain these corrections. There is one instance of this group within the granule. There is one instance of the photon channel subgroups for each channel configured on the instrument.

Attribute

Value

Description

This group contains individual geolocated photons. Each photon has been located by geolocation routines which account for pointing angle and aircraft roll/pitch/yaw. Preliminary ranges input to the geolocation routines have been corrected for frequency-dependent wet and dry tropospheric delays. The resulting elevations retain these corrections. There is one instance of this subgroup for each channel configured on the instrument.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

delta_time

DOUBLE
(UNLIMITED)

delta_time
(time)

seconds

Elapsed seconds since first data point in granule

Derived (gps_seconds-gps_second_offset)

NOT_SET

elev

FLOAT
(UNLIMITED)

elev
(elevation)

meters

Height above the WGS84 ellipsoid

Derived (Geolocation ATBD)

delta_time

flag

INTEGER_1
(UNLIMITED)

flag
(flag)

NA

Undefined 1-byte Flag

Derived (TBD)

delta_time

latitude

DOUBLE
(UNLIMITED)

lat
(latitude)

degrees_north

Latitude, WGS84, North=+

Derived (Geolocation ATBD)

delta_time

longitude

DOUBLE
(UNLIMITED)

lon
(longitude)

degrees_east

Longitude, WGS84, East=+

Derived (Geolocation ATBD)

delta_time

photon_id

INTEGER_2
(UNLIMITED)

photon_id
(photon_id)

NA

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.

Derived

delta_time

shot_num

INTEGER
(UNLIMITED)

shot_number
(counter)

counts

Shot Number, copied from the L1A shottag packet.

L1A Shottag packet

delta_time

Attribute

Value

Description

This group contains quality assessment data which contains counters and summary statistics which can be used to assess the quality of the data

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

DS_statistics

INTEGER
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

end_of_interval

DOUBLE
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

start_of_interval

DOUBLE
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

Attribute

Value

Description

This group contains per-channel photon statistics.

Attribute

Value

Description

This group contains per-channel photon statistics.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

first_lat

DOUBLE
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

first_lon

DOUBLE
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

last_lat

DOUBLE
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

last_lon

DOUBLE
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

n_elev

INTEGER
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET

Attribute

Value

Description

This group contains summary quality assessment information.

Label

Datatype
(Dimensions)

long_name
(standard_name)

units

description

source

coordinates

elev_dem

DOUBLE (5)
(UNLIMITED)

NOT_SET
(NOT_SET)

NOT_SET

NOT_SET

NOT_SET

NOT_SET