Growth of Greenland Ice Sheet: Measurement

Measurements of ice-sheet elevation change by satellite altimetry show that the Greenland surface elevation south of 72 degrees north latitude is increasing. The vertical velocity of the surface is 0.20 $\pm $ 0.06 meters per year from measured changes in surface elevations at 5906 intersections bet...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1989-12, Vol.246 (4937), p.1587-1589
Hauptverfasser:	Zwally, H. Jay, Brenner, Anita C., Major, Judy A., Bindschadler, Robert A., Marsh, James G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Altimeters Artificial satellites Crossovers Earth, ocean, space Exact sciences and technology External geophysics Geology Geophysics Ice Ice sheets Mass balance Mass spectroscopy Measurement Oceans Orbits Snow. Ice. Glaciers Topographical elevation
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Beschreibung
Zusammenfassung:	Measurements of ice-sheet elevation change by satellite altimetry show that the Greenland surface elevation south of 72 degrees north latitude is increasing. The vertical velocity of the surface is 0.20 $\pm $ 0.06 meters per year from measured changes in surface elevations at 5906 intersections between Geosat paths in 1985 and Seasat in 1978, and 0.28 $\pm $ 0.02 meters per year from 256,694 intersections of Geosat paths during a 548-day period of 1985 to 1986.
ISSN:	0036-8075 1095-9203
DOI:	10.1126/science.246.4937.1587