On the Use of the WRF Model to Mitigate Tropospheric Phase Delay Effects in SAR Interferograms

Author

Nico, G. ; Tome, R. ; Catalao, Joao ; Miranda, P.M.A.

Author_Institution

Ist. per le Applicazioni del Calcolo (IAC), Consiglio Naz. delle Ric. (CNR), Bari, Italy

Volume

49

Issue

12

fYear

2011

Firstpage

4970

Lastpage

4976

Abstract

A method that is used to generate synthetic interferograms of the atmospheric phase delay temporal changes is presented. The Weather Research and Forecasting Model is used to forecast the spatial distribution of the main atmospheric parameters at the acquisition times of synthetic aperture radar (SAR) images. The method is applied to mitigate atmospheric artifacts in SAR interferograms. The Lisbon Region and the Pico and Faial Islands in the Azores archipelago are chosen as case studies. They are characterized by a different temporal behavior of atmospheric phase delay properties. Results are assessed by means of a statistical analysis.

Keywords

atmospheric techniques; radar interferometry; synthetic aperture radar; troposphere; weather forecasting; Azores archipelago; Faial Island; Lisbon region; Pico Island; SAR interferogram; WRF model; atmospheric phase delay temporal changes; spatial distribution; statistical analysis; synthetic aperture radar image; synthetic interferogram; temporal behavior; tropospheric phase delay effect; weather research and forecasting model; Atmospheric measurements; Atmospheric modeling; Meteorology; Numerical models; Predictive models; Surfaces; SAR interferometry (InSAR); Weather Research and Forecasting (WRF) Model; synthetic aperture radar (SAR); tropospheric delay;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/TGRS.2011.2157511

Filename

5951757