Experimental study on the atmospheric delay based on GPS, SAR interferometry, and numerical weather model data

Abstract

In this paper, we present the results of an experimentaiming to compare measurements of atmospheric delay bysynthetic aperture radar (SAR) interferometry and GPS techniquesto estimates by numerical weather prediction. Maps of thedifferential atmospheric delay are generated by processing a setof interferometric SAR images acquired by the ENVISAT-ASARmission over the Lisbon region from April to November 2009. GPSmeasurements of the wet zenith delay are carried out over thesame area, covering the time interval between the first and the lastSAR acquisition. The Weather Research and Forecasting (WRF)model is used to model the atmospheric delay over the studyarea at about the same time of SAR acquisitions. The analysis ofresults gives hints to devise mitigation approaches of atmosphericartifacts in SAR interferometry applications.


Autore Pugliese

Tutti gli autori

  • P. Mateus; G. Nico; J. Catalão; R. Tome; P.M.A. Miranda

Titolo volume/Rivista

IEEE transactions on geoscience and remote sensing


Anno di pubblicazione

2013

ISSN

0196-2892

ISBN

Non Disponibile


Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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