Modeling of atmospheric effects on InSAR measurements by incorporating terrain elevation information

Z. W. Li, Xiaoli Ding, C. Huang, G. Wadge, D. W. Zheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)

Abstract

We propose an elevation-dependent calibratory method to correct for the water vapour-induced delays over Mt. Etna that affect the interferometric syntheric aperture radar (InSAR) results. Water vapour delay fields are modelled from individual zenith delay estimates on a network of continuous GPS receivers. These are interpolated using simple kriging with varying local means over two domains, above and below 2 km in altitude. Test results with data from a meteorological station and 14 continuous GPS stations over Mt. Etna show that a reduction of the mean phase delay field of about 27% is achieved after the model is applied to a 35-day interferogram.
Original languageEnglish
Pages (from-to)1189-1194
Number of pages6
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Volume68
Issue number11
DOIs
Publication statusPublished - 1 Jul 2006

Keywords

  • Atmospheric effects
  • Calibratory method
  • Elevation-dependent model
  • SAR interferometry
  • Simple kriging with varying local means

ASJC Scopus subject areas

  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science

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