Elevation Change of the Southern Greenland Ice Sheet from 1978-88 View Catalog Page Entry ID
NSIDC-0223
Summary
Southern Greenland ice sheet elevation change estimates are derived from SEASAT and GEOSAT radar altimetry data from 1978 to 1988. Data are confined to 61-72 deg N, 30-50 deg W, above 1700 m elevation. The addition of GEOSAT Geodetic Mission (GM) data results in twice as many crossover points and 50% greater coverage than previous studies. Coverage above 2000 m elevation is improved to 90%, and about 75% of the area between 1700 m and 2000 m is now covered. Data are in ASCII text format, available via FTP, and consist of elevation change rate (dH/dt, cm/year) and corresponding error estimates in 50 km grid cells.
Geographic Coverage
Spatial Coordinates: N: 72°
S: 61°
E: -30°
W: -52°
|
Data Set Citation
Dataset Creator: Curt Davis, Craig Kluever, Bruce Haines Dataset Title: Elevation Change of the Southern Greenland Ice Sheet from 1978-88 Dataset Release Date: 2001-01-01 Dataset Publisher: National Snow and Ice Data Center (NSIDC) Online Resource: http://nsidc.org/data/nsidc-0223.html
Temporal Coverage
Start Date: 1978-01-01 Stop Date: 1988-12-31
Location Keywords
- Continent
North America Greenland
Science Keywords
- Cryosphere
Glaciers/Ice Sheets Glacier Elevation/Ice Sheet Elevation
- Cryosphere
Glaciers/Ice Sheets Ice Sheets
- Terrestrial Hydrosphere
Glaciers/Ice Sheets Glacier Elevation/Ice Sheet Elevation
- Terrestrial Hydrosphere
Glaciers/Ice Sheets Ice Sheets
Ancillary Keywords
- Greenland
- Ice Sheet Elevation
- NASA
- NSIDC
- NSIDC DAAC
- PARCA
Platform
- GEOSAT
Geodetic Satellite
- SEASAT
Ocean Dynamics Satellite
Instrument
Project
- PARCA
Program in Arctic Regional Climate Assessment
Quality
Refer to Davis et al. 2000 for details of orbit error analysis with SEASAT and GEOSAT. Comparison with laser dH/dt results and other in-situ data indicates that a typical error value for elevation change estimates in a 50 km cell is approximately +/- 2 cm/yr (Davis et al. 2001).
Data Set Progress
COMPLETE
Data Center
National Snow and Ice Data Center Data Center URL: http://nsidc.org Data Set ID: NSIDC-0223
Data Center Personnel
Name: NSIDC User Services Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc@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
NSIDC Distributed Active Archive Center Data Center URL: http://nsidc.org/daac/index.html Data Set ID: NSIDC-0223
Data Center Personnel
Name: NSIDC DAAC User Services Phone: +1 (303) 492-6199 Fax: +1 (303) 492-2468 Email: nsidc@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: 10 KB Distribution Format: ASCII
Personnel
Curt H. Davis Role: INVESTIGATOR Phone: +1 573-884-3789 Fax: +1 573-882-0397 Email: DavisCH@missouri.edu Contact Address: 323 EBW City: Columbia Province or State: MO Postal Code: 65211 Country: USA
Craig A. Kluever Role: INVESTIGATOR Phone: +1 573-882-6764 Email: KlueverC@missouri.edu Contact Address: E3414engr Bldg East City: Columbia Province or State: MO Postal Code: 65211 Country: USA
Bruce Haines Role: INVESTIGATOR Phone: +1 818-354-0686 Fax: +1 818-393-4965 Email: bruce.j.haines@jpl.nasa.gov Contact Address: 4800 Oak Grove Dr.
MS 238-600 City: Pasadena Province or State: CA Postal Code: 91109-8099 Country: USA
Reference
Davis, C.H., J.R. McConnell, J. Bolzan, J.L. Bamber, R.H. Thomas, and E. Mosley-Thompson. 2001. Elevation change of the southern Greenland ice sheet from 1978 to 1998: interpretation. Journal of Geophysical Research 106(D24): 33743-33754.
Davis, C.H., C.A. Kluever, B.J. Haines, C. Perez, and Y. Yoon. 2000. Improved elevation change measurement of the southern Greenland ice sheet from satellite radar altimetry. IEEE Transactions on Geoscience and Remote Sensing 38(3): 1367-1378.
Davis, C.H, C.A. Kluever, and B.J. Haines. 1998a. Elevation change of the southern Greenland ice sheet. Science 279: 2086-2088. Davis, C.H., C.A. Kluever, and B.J. Haines. 1998b. Comment: Growth of the southern Greenland ice sheet. Science 281: 1251.
Krabill, W., W. Abdalati, E. Frederick, S. Manizade, C. Martin, J. Sonntag, R. Swift, R. Thomas, W. Wright, and J. Yungel. 2000. Greenland ice sheet: high-elevation balance and peripheral thinning. Science 289: 428-430.
Krabill, W., E. Frederick, S. Manizade, C. Martin, J. Sonntag, R. Swift, R. Thomas, W. Wright, and J. Yungel. 1999. Rapid thinning of parts of the southern Greenland ice sheet. Science 283: 1522-24. View PDF.
McConnell, J.R., R.J. Arthern, E. Mosley-Thompson, C.H. Davis, R.C. Bales, R. Thomas, J.F. Burkhart, and J.D. Kyne. 2000. Changes in Greenland ice sheet elevation attributed primarily to snow accumulation variability. Nature 406(6798): 877-879.
Thomas, R., T. Akins, B. Csatho, M. Fahnestock, P. Gogineni, C. Kim, and J. Sonntag. 2000. Mass balance of the Greenland ice sheet at high elevations. Science 289: 426-428.
Thomas, R.H., C.H. Davis, E. Frederick, S. Manizade, W. Krabill, J. McConnell, and J. Sonntag. 1999. Greenland ice-sheet elevation change since 1978 from radar and laser altimetry. Polar Geography 23(3): 169-184. Zwally, H.J. 1989. Growth of Greenland ice sheet: interpretation. Science 246: 1589-1591.
Zwally, H.J., A.C. Brenner, J.P. DiMarzio. 1998. Comment: Growth of the southern Greenland ice sheet. Science 281: 1251.
Zwally, H.J., A.C. Brenner, J.A. Major, R.A. Bindschadler, and J.G. Marsh. 1989. Growth of Greenland ice sheet: measurement. Science 246: 1587-1589.
Metadata Name and Version
Metadata Name: CEOS IDN DIF Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2004-04-21 Last DIF Revision Date: 2004-04-21
|