MITIGATION OF ATMOSPHERIC DELAY IN INSAR: THE ESA METAWAVE PROJECT
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員
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摘要In this work we report the main conclusions of the European Space Agency (ESA) Metawave project (Mitigation of Electromagnetic Transmission errors induced by Atmospheric Water Vapour Effects) for what concerns the Synthetic Aperture Radar Interferometry (InSAR) viewpoint. The Atmospheric Phase Screen (APS) estimated with the Permanent Scatterers (PS) technique in the test sites of Roma and Como has been compared with MM5 simulations, Meris Water Vapor (WV) data and GPS Zenith Wet Delays (ZWD). The experiment shows that, even though MM5, Meris and GPS data detect the similar absolute amount of WV, their accuracy is not enough to compensate the InSAR sensitivity to the WV spatial variability. In particular, Numerical Weather Prediction models look promising for correcting long WV spatial wavelengths in presence of topography; GPS measurements reveal the best performances toward short WV spatial wavelengths, while Meris data in the analyzed area show generally poor reliability.
著者Perissin D, Rocca F, Pierdicca M, Pichelli E, Cimini D, Venuti G, Rommen B
會議名稱IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
會議開始日24.07.2011
會議完結日29.07.2011
會議地點Vancouver
會議國家/地區加拿大
出版年份2011
月份1
日期1
出版社IEEE
頁次2558 - 2561
電子國際標準書號978-1-4577-1005-6
國際標準期刊號2153-6996
語言英式英語
關鍵詞atmospheric delay; GPS; Meris; MM5; PSInSAR
Web of Science 學科類別Engineering; Engineering, Electrical & Electronic; Geology; Geosciences, Multidisciplinary; Remote Sensing

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