Ice sheet topography from retracked ERS-1 altimetry

摘要: An objective of the ERS-1 radar altimeter is to measure surface topography polar ice sheets a precision on order meter. Waveform Altimeter Product (WAP) data was corrected for several processing errors. A range correction from WAP waveforms, using multiparameter retracking algorithm account tracking limitations inherent altimetry, derived. From crossover analysis, resulting shown be about 2.1 m in ocean mode and 2.2 mode. map, produced with 23 days data, shows details western part west Antarctic sheet Ross shelf including divides, stream boundaries, grounding lines.