| タイトル | Ice sheet topography from retracked ERS-1 altimetry |
| 著者（英） | Zwally, H. Jay; Brenner, Anita C.; Dimarzio, John; Seiss, Timothy |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1994-01-01 |
| 言語 | eng |
| 内容記述 | An objective of the ERS-1 radar altimeter is to measure the surface topography of the polar ice sheets to a precision on the order of a meter. ERS-1 Waveform Altimeter Product (WAP) data was corrected for several processing errors. A range correction from the WAP waveforms, using the multiparameter retracking algorithm to account for range tracking limitations inherent to radar altimetry, was derived. From crossover analysis, the resulting precision is shown to be about 2.1 m in ocean mode and 2.2 m in ice mode. A topography map, produced with 23 days of corrected data, shows details of the western part of west Antarctic ice sheet and part of the Ross ice shelf including ice divides, ice stream boundaries, and ice shelf grounding lines. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 94N34493 |
| 権利 | Copyright, Distribution within the U.S. granted by agreement |
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