Global Change Master Directory (GCMD)

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GLAS/ICESat L1A Global Laser Pointing Data

Entry ID: GLA04

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Summary

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 ...

Related URL

Link: VIEW PROJECT HOME PAGE

Description: ICESat/GLAS web site at NSIDC

Link: VIEW RELATED INFORMATION

Description: ICESat/GLAS web site at University of Texas

Link: VIEW RELATED INFORMATION

Description: ICESat/GLAS web site at NASA Wallops Flight Facility

Link: VIEW RELATED INFORMATION

Description: ICESat/GLAS web site at NASA Goddard Space Flight Center

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

	N: 86.0	S: -86.0	E: 180.0	W: -180.0
Min Altitude: 593 KM Max Altitude: 623 KM

Data Set Citation

Dataset Originator/Creator: H.J. Zwally, R. Schutz, J. Abshire

Dataset Title: GLAS/ICESat L1A Global Laser Pointing Data

Dataset Release Date: 2003-01-01

Dataset Release Place: Boulder, CO U.S.A.

Dataset Publisher: National Snow and Ice Data Center (NSIDC)

Version: 18

Online Resource: http://nsidc.org/data/gla04.html

Temporal Coverage

Start Date: 2003-02-20

Location Keywords

GEOGRAPHIC REGION > GLOBAL

Data Resolution

Temporal Resolution: 6 hours

Science Keywords

SPECTRAL/ENGINEERING > PLATFORM CHARACTERISTICS > ATTITUDE CHARACTERISTICS

SPECTRAL/ENGINEERING > PLATFORM CHARACTERISTICS > VIEWING GEOMETRY

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Platform

ICESAT > Ice, Cloud and Land Elevation Satellite

SATELLITES

Instrument

Altimeters

GLAS > Geoscience Laser Altimeter System

LIDAR > Light Detection and Ranging

Project

EOSDIS > Earth Observing System Data Information System

ICESAT > Ice, Cloud and Land Elevation Satellite

ESIP > Earth Science Information Partners Program

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Ancillary Keywords

DAAC

EOSDIS

Data Set Progress

IN WORK

Data Center

NSIDC Distributed Active Archive Center

Data Center URL: http://nsidc.org/daac/index.html
Dataset ID: GLA04

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

National Snow and Ice Data Center

Data Center URL: http://nsidc.org
Dataset ID: GLA041

Data Center Personnel
Name: NSIDC USER SERVICES Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc at nsidc.org Contact Address: National Snow and Ice Data Center CIRES, 449 UCB University of Colorado City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA

Distribution

Distribution Media: FTP

Distribution Size: 2 MB to 386 MB

Distribution Format: binary

Personnel

DAVID HANCOCK

Role: TECHNICAL CONTACT

Email: David.W.Hancock at nasa.gov

Contact Address:

ISIPS Manager

NASA Goddard Space Flight Center

Wallops Flight Facility

USA

City: Wallops Island

Province or State: VA

Country: USA

Publications/References

Bae, S. and B.E. Schutz. 2002. Precision attitude determination (PAD). GLAS algorithm theoretical basis document. Version 2.2. Austin, TX: Center for Space Research, University of Texas at Austin. Center for Space Research. 'ICESat/GLAS.' January 2002. http://www.csr.utexas.edu/glas/. Earth Science Data and Information System (ESDIS). 1996. EOS Ground System (EGS) Systems and Operations Concept. ... Greenbelt, MD: Goddard Space Flight Center. Farrell, W.E. 1972. Deformation of the Earth by surface loads. Review of Geophysics and Space Physics 10: 761-797. GLAS Science Team. 2000. Mission Operations Requirement Document (MORD) for the Ice, Cloud and Land Elevation Satellite (ICESat) Mission. Greenbelt, MD: Goddard Space Flight Center. GLAS Science Team. 1997. GLAS Science Requirements. Version 2.01. Greenbelt, MD: Goddard Space Flight Center. Heroux, D. 2000. Progress report on GLAS interface effort with ECS NOSE. Rev. 29 December 2000. Landover, MD: Emergent-IT/Raytheon. Herring, T.A. and K. Quinn. 1999. Atmospheric delay correction to GLAS laser altimeter ranges. GLAS algorithm theoretical basis document. Version 1.0. Lanham, MD: Science Systems and Applications, Inc. Jester, P., and D. Hancock. 2002. The Algorithm Theoretical Basis Document for Level 1A Processing, Version 1.2. Wallops Island, VA: Raytheon ITSS. Jester, P., and J. Lee. 2002. GLAS standard data products specification - level 1. Version 6.0. Wallops Island, VA: Raytheon ITSS. Lee, J. 2002. GSAS user's guide: Version 4.0. Wallops Island, VA: Raytheon ITSS. McGarry, J.F., J. Abshire, X. Sun, J. Saba, A. Brenner, and D. Yi. 2002. GLAS flight science data selection algorithms for the altimeter (1064 nm), Version 4.15. Unpublished report. Rim, H., and B. Schutz. 2002. Precision orbit determination. GLAS algorithm theoretical basis document. Version 2.2. Austin, TX: Center for Space Research, University of Texas at Austin. Schutz, B. 2002. Laser footprint location (geolocation) and surface profiles. GLAS algorithm theoretical basis document. Version 3.0. Austin, TX: Center for Space Research, University of Texas at Austin. Yi, D., J. Minster, and C. Bentley. 1999. Ocean tidal loading corrections. GLAS algorithm theoretical basis document. Version 1.0. Greenbelt, MD: Goddard Space Flight Center. Zwally, H.J., B. Schutz, W. Abdalati, J. Abshire, C. Bentley, A. Brenner, J. Bufton, J. Dezio, D. Hancock, D. Harding, T. Herring, B. Minster, K. Quinn, S. Palm, J. Spinhirne, and R. Thomas. 2002. ICESAT's laser measurements of polar ice, atmosphere, ocean, and land. Journal of Geodynamics 34: 405-445. Zwally, H.J., B. Schutz, D. Hancock, and A. Brenner. 2000. ICESat/GLAS Standard Data Products in HDF and SCF Formats. Version 1.2. Greenbelt, MD: Goddard Space Flight Center.

Extended Metadata Properties

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Creation and Review Dates

DIF Creation Date: 2002-10-28

Last DIF Revision Date: 2011-02-04

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