GLAS/ICESat L1A Global Laser Pointing Data  View Catalog Page
Metadata Entity Set Information:
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Hierarchy Level:
Value: dataset
CodeList: MD_ScopeCode
Hierarchy Level Name:
GLAS/ICESat L1A Global Laser Pointing Data
Contact:
Responsible Party:
Individual Name: David Hancock
Organization Name: NASA Goddard Space Flight Center
Contact:
Contact Address:
Delivery Point: ISIPS Manager
Email: David.W.Hancock@nasa.gov
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Date Stamp:
2013-06-19
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/gla04.html
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Data Identification Information:
Citation:
Citation Information:
Title: GLAS/ICESat L1A Global Laser Pointing Data
Date:
Date: 2011
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition: 33
Edition Date: 2011-08-11
Identifier: GLA04
Cited Responsible Party: Responsible Party:
Individual Name: NSIDC DAAC User Services
Organization Name: NASA DAAC at the National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/daac/index.html
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Abstract:
The Geoscience Laser Altimeter System (GLAS) instrument on the Ice, Cloud, and Land Elevation Satellite (ICESat) provides global measurements of polar ice sheet elevation to discern changes in ice volume (mass balance) over time. Secondary objectives of GLAS are to measure sea ice roughness and thickness, cloud and atmospheric properties, land topography, vegetation canopy heights, ocean surface topography, and surface reflectivity.
GLAS has a 1064 nm laser channel for surface altimetry and dense cloud heights, and a 532 nm lidar channel for the vertical distribution of clouds and aerosols.
Level-1A global laser pointing data (GLA04) contain two orbits of attitude data from the spacecraft star tracker, instrument star tracker, gyro, and laser reference system, and other spacecraft attitude data required to calculate precise laser pointing. Data are in scaled integer binary format, big-endian (Unix) byte order, and are available via FTP.
Purpose:
Scientific Research
Credit:
The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.
Zwally, H., R. Schutz, and J. Abshire. 2011. GLAS/ICESat L1A Global Laser Pointing Data. Version 33. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center.
Status:
Value: complete
CodeList: MD_ProgressCode
Point of Contact:
Responsible Party:
Individual Name: David Hancock
Organization Name: NASA Goddard Space Flight Center
Contact:
Contact Address:
Delivery Point: ISIPS Manager
Email: David.W.Hancock@nasa.gov
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Responsible Party:
Individual Name: H. Jay Zwally
Organization Name: NASA/Goddard Space Flight Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 301 614-5643
Contact Address:
Delivery Point: Laboratory for Hydrospheric Processes
City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Email: Jay.Zwally@nasa.gov
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: H. Jay Zwally
Organization Name: NASA/Goddard Space Flight Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 301 614-5643
Contact Address:
Delivery Point: Laboratory for Hydrospheric Processes
City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Email: Jay.Zwally@nasa.gov
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Robert Schutz
Organization Name: University of Texas at Austin
Contact:
Contact Address:
Delivery Point: GLAS Science Team Lead
City: Austin
Administrative Area: TX
Postal Code: 78712-1085
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: James Abshire
Contact:
Contact Address:
Delivery Point: NASA/Goddard Space Flight Center
City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Maintenance Information:
Maintenance and Update Frequency:
Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode
Update Scope:
Value: dataset
CodeList: MD_ScopeCode
Value: series
CodeList: MD_ScopeCode
Value: attribute
CodeList: MD_ScopeCode
Contact:
Responsible Party:
Individual Name: David Hancock
Organization Name: NASA Goddard Space Flight Center
Contact:
Contact Address:
Delivery Point: ISIPS Manager
Email: David.W.Hancock@nasa.gov
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Descriptive Keywords:
Keywords
Keyword: Geographic Region > Global
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EARTH SCIENCE > Spectral/Engineering > Platform Characteristics > Attitude Characteristics
Keyword: EARTH SCIENCE > Spectral/Engineering > Platform Characteristics > Viewing Geometry
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: ICESAT > Ice, Cloud and Land Elevation Satellite
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Project Keywords
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: DAAC
Keyword: EOSDIS
Keyword: GLA04
Keyword: GLAS
Keyword: HRG Gyro
Keyword: ICESat
Keyword: Instrument Star Tracker
Keyword: ISIPS
Keyword: Laser Reference System
Keyword: NASA
Keyword: NSIDC
Keyword: Spacecraft Star Tracker
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Dataset Constraints:
Legal Constraints:
Access Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Use Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Other Constraints:
Access Constraints : none
Use Constraints : none
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Topic Category:
Value: geoscientificInformation
CodeList: MD_topicCategoryCode
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -180
Eastbound Longitude: 180
Southbound Latitude: -86
Northbound Latitude: 86
Temporal Element:
Time Period:
Begin Position: 20030220
End Position: 20091011
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Distribution Information:
Distributor Information:
Distributor Contact:
Responsible Party:
Individual Name: NSIDC DAAC User Services
Organization Name: NASA DAAC at the National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/daac/index.html
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Distribution Format(s):
Data File Format:
Name: Binary
Specification: FTP 2 to 386 MB
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: http://nsidc.org/data/icesat/order.html
Description: Data Access URL
Function:
Value: download
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Density: 2
Density Units: o 386 MB
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: ALTIMETERS
Type: sensor
Instrument:
Name: GLAS > Geoscience Laser Altimeter System
Type: sensor
Instrument:
Name: LIDAR > Light Detection and Ranging
Type: sensor
Platform Information:
Platform:
Name: ICESAT > Ice, Cloud and Land Elevation Satellite
Description: satellite
Instrument: N/A
Platform:
Name: SATELLITES
Description: satellite
Instrument: N/A
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