InSAR based validation of MERIS IWV cloud gap filling using GPS IWV

Conference paper (2009)
Department
Remote Sensing (Aerospace Engineering) (TU Delft)
Copyright: © 2009 The Author(s)
More Info
expand_more

Published Date

01-10-2009

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Source:

Proceedings of the 8th International Symposium on Tropospheric Profiling, October 2009, Delft, The Netherlands

ISBN:

9789069602332

Faculty

Aerospace Engineering

Department

Remote Sensing

Abstract

High spatial resolution integrated water vapor (IWV) estimates are available from the MERIS spectrometer on board of Envisat. Unfortunately cloud cover results in loss of a large amount of MERIS IWV pixels. Here methods are presented for filling cloud gaps in MERIS IWV scenes, first, by directly interpolating remaining pixels not affected by clouds, and second, by fusion with cloud insensitive IWV observations from ground stations of the GPS network. Results are validated by independent IWV estimates obtained from suited SAR interferograms. The results indicate that the procedure works mathematically in a correct way, but that the physical application of the results is strongly hampered by MERIS pixels affected by not automatically detected clouds.