Interferometric synthetic aperture radar atmospheric correction: Medium Resolution Imaging Spectrometer and Advanced Synthetic Aperture Radar Integration

被引：81
|
作者：
Li, ZH
Fielding, EJ
Cross, P
Muller, JP
机构：
[1] UCL, Dept Geomat Engn, London WC1E 6BT, England
[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 06期
关键词：
D O I：
10.1029/2005GL025299
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
[1] Atmospheric water vapor effects represent one of the major limitations of repeat- pass InSAR, and limit the accuracy of deformation rates derived from InSAR. The use of contemporaneous MERIS data to correct ENVISAT ASAR measurements shows a significant reduction in water vapor effects. After correction, the RMS differences between GPS and InSAR range changes in the satellite line of sight direction decreased to 0.55 cm with a reduction of up to 0.35 cm. It is also shown that it is possible to implement an extra ' conservative' cloud mask and obtain better water vapor corrections than that from using the official ESA cloud mask product.
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页数：4
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