GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland, Version 1

Dataset Identification:

Resource Abstract:
The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and land Elevation Satellite (ICESat) provides global measurements of elevation, and repeats measurements along nearly-identical tracks; its primary mission is to measure changes in ice volume (mass balance) over time. This digital elevation model (DEM) of Greenland is derived from GLAS/ICESat laser altimetry profile data and provides new surface elevation grids of the ice sheets and coastal areas, with greater latitudinal extent and fewer slope-related effects than radar altimetry. This DEM is generated from the first seven operational periods (from February 2003 through June 2005) of the GLAS instrument. It is provided on polar stereographic grids at 1 km grid spacing. The grid covers all of Greenland south of 83 N. Elevations are reported as centimeters above the datums, relative to both the WGS 84 ellipsoid and the EGM96 geoid, in two separate elevation data files. A data quality map of the interpolation distance is distributed in addition to the elevation data. ENVI header files are also provided. The data are in 4-byte (long) signed integer binary files (big endian byte order) and are available via FTP.
Citation
Title GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland, Version 1
publication  Date   2007-06-21
Edition 1
edition Date 2007-06-21
cited responsible party - principalInvestigator
individual Name John P. DiMarzio
cited responsible party - publisher
organisation Name  National Snow and Ice Data Center
Contact information
Address
, Boulder, Colorado,  Country USA
Linkage for online resource
name 
URL: http://nsidc.org
Description 
Topic Category:  elevation
Keywords:
Location keywords:
Continent > North America > Greenland
thesaurus name >
Title NASA / GCMD Location Keywords
revision  Date   2008-02-05
Theme keywords (theme):
EARTH SCIENCE > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
EARTH SCIENCE > Terrestrial Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
thesaurus name >
Title NASA / GCMD Science Keywords
revision  Date   2008-02-05
platform Keywords
Earth Observation Satellites > ICESAT
thesaurus name >
Title NASA / GCMD Platform Keywords
revision  Date   2016-06-10
instrument Keywords
GLAS > Geoscience Laser Altimeter System
thesaurus name >
Title NASA / GCMD Instrument Keywords
revision  Date   2016-06-01
project Keywords
ICESAT > Ice, Cloud and Land Elevation Satellite
thesaurus name >
Title NASA / GCMD Project Keywords
revision  Date   2008-01-24
Theme keywords (theme):
Cryosphere
Hydrosphere
thesaurus name >
Title Realm > Hydrosphere
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Continent
thesaurus name >
Title Realm > Geosphere
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Mass Balance
thesaurus name >
Title Method > Physical Method
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Elevation
thesaurus name >
Title Feature > Physiographic Feature
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Digital Elevation Model
thesaurus name >
Title Realm > Earth Surface
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Satellite
thesaurus name >
Title Realm > Planetary Structure
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Measurement
thesaurus name >
Title Activity > Observation
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Geoid
thesaurus name >
Title Realm > Critical Zone
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Ice Sheet
Glacier
thesaurus name >
Title Feature > glacial feature
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Measurement
Distance
North
thesaurus name >
Title Property > Measure
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
ICESAT
Earth Observation Satellite
thesaurus name >
Title Equipment > Satellites
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
Instrument
Laser
Radar
Altimeter
thesaurus name >
Title Equipment > Instrument
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
Theme keywords (theme):
National Snow and Ice Data Center
Goddard Space Flight Center
Scripps Institution of Oceanography
University of Texas at Austin
thesaurus name >
Title Virtual International Authority File (VIAF) Corporate Names
publication  Date   2018-11-21
other Citation Details  Cinergi keyword enhanced.File generated at Wed Nov 21 22:46:47 UTC 2018
purpose:
Scientific Research
Resource language:  eng; usa
Character set encoding of resource:  UTF8
Resource progress code:  completed
Resource Maintenance Information
maintenance or update frequency:  asNeeded
update scope:  dataset
update scope:  series
update scope:  attribute
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
use constraint:  otherRestrictions
Other constraints
Access Constraints : none
Other constraints
Use Constraints : none
Resource extent
Extent description
SpatialCoverageType=HORIZONTAL, SpatialGranuleSpatialRepresentation=GEODETIC, TemporalRangeType=Continuous Range, TimeType=UTC
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -73.0
eastBoundLongitude  -11.0
northBoundLatitude  83.0
southBoundLatitude  60.0
Temporal Extent
2003-02-01T00:00:00.000Z 2005-06-30T23:59:59.999Z
point of contact - principalInvestigator
individual Name John Dimarzio
organisation Name  NASA/Goddard Space Flight Center
Contact information
Telephone
Voice 1 301 614 5893
Address
SGT, Inc.NASA/Goddard Space Flight CenterCryospheric Sciences Branch Code 614.1, Greenbelt, MD, 20771 Country USA
electronic Mail Address john.dimarzio@gsfc.nasa.gov
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Anita Brenner
organisation Name  NASA/Goddard Space Flight Center
Contact information
Address
Code 614.5, Greenbelt, MD, 20771 Country USA
electronic Mail Address anita.brenner@gsfc.nasa.gov
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Helen Fricker
organisation Name  Scripps Institution of Oceanography
Contact information
Address
University of California, San Diego9500 Gilman Dr., La Jolla, California, 92093 Country USA
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Robert Schutz
organisation Name  University of Texas at Austin
Contact information
Address
GLAS Science Team LeadUniversity of Texas at AustinCenter for Space Research, Austin, TX, 78712-1085 Country USA
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name Christopher A. Shuman
organisation Name  NASA/Goddard Space Flight Center
Contact information
Telephone
Voice 1 301 614 5706
Address
Cryospheric Sciences BranchCode 614.1NASA/Goddard Space Flight Center, Greenbelt, MD, 20771 Country USA
electronic Mail Address Christopher.A.Shuman@nasa.gov
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - principalInvestigator
individual Name H. Jay Zwally
organisation Name  NASA/Goddard Space Flight Center
Contact information
Telephone
Voice 1 301 614 5643
Fax 1 301 614 5644
Address
Laboratory for Hydrospheric ProcessesNASA/Goddard Space Flight CenterCode 971, Greenbelt, MD, 20771 Country USA
electronic Mail Address Jay.Zwally@nasa.gov
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - pointOfContact
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
CIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - custodian
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - distributor
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
point of contact - processor
point of contact - originator
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Reference system information

Reference System Identifier
Identifier string: CARTESIAN
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Scope of quality information
scope level  series
Resource lineage description

Resource distribution information

Distributor
distributor contact - distributor
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
Digital Transfer Options
Linkage for online resource
name HTTPS
URL: https://daacdata.apps.nsidc.org/pub/DATASETS/DEM/nsidc0305_icesat_greenland_dem
link function function
Description Direct download via HTTPS protocol.
Linkage for online resource
name Documentation
URL: http://dx.doi.org/10.5067/FYMKT3GJE0TM
link function function
Description Documentation explaining the data and how it was processed.
Format
Format name Binary
Format version 
specification > FTP 24 MB

Description of extensions to base metadata standard

ExtendedElementInformation
Elementname Metadata Create Date
definition Create Date
dataType  Date
domainValue 2007-06-21
parentEntity 
rule 
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Description of extensions to base metadata standard

ExtendedElementInformation
Elementname Metadata Update Date
definition Update Date
dataType  Date
domainValue 2017-02-03
parentEntity 
rule 
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Metadata data stamp:  2017-02-03
Metadata contact - custodian
individual Name NSIDC User Services
organisation Name  National Snow and Ice Data Center
Contact information
Telephone
Voice 1 303 492 6199
Fax 1 303 492 2468
Address
National Snow and Ice Data CenterCIRES, 449 UCBUniversity of Colorado, Boulder, CO, 80309-0449 Country USA
electronic Mail Address nsidc@nsidc.org
Linkage for online resource
name 
URL: http://nsidc.org
Description 
Metadata scope code  series
Metadata hierarchy level name:  GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland
Metadata language  eng; usa
Metadata character set encoding:   UTF8
Metadata standard for this record:  ISO 19115-2 Geographic Information 2009 Metadata
standard version:  ISO 19115-2:2009
Metadata record identifier:  GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland, Version 1

Metadata record format is ISO19139-2 XML (MI_Metadata)