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

Lookup NU author(s): Professor Zhenhong Li

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Abstract

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.


Publication metadata

Author(s): Li Z, Fielding E, Cross P, Muller J-P

Publication type: Article

Publication status: Published

Journal: Geophysical Research Letters

Year: 2006

Volume: 33

Issue: 6

Print publication date: 01/03/2006

Online publication date: 25/03/2006

ISSN (print): 0094-8276

ISSN (electronic): 1944-8007

Publisher: Wiley-Blackwell

URL: http://dx.doi.org/10.1029/2005GL025299

DOI: 10.1029/2005GL025299


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