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

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

doi:10.1016/j.jastp.2006.03.002

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 publication › Journal article › Academic research › peer-review

47 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 language	English
Pages (from-to)	1189-1194
Number of pages	6
Journal	Journal of Atmospheric and Solar-Terrestrial Physics
Volume	68
Issue number	11
DOIs	https://doi.org/10.1016/j.jastp.2006.03.002
Publication status	Published - 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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10.1016/j.jastp.2006.03.002

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title = "Modeling of atmospheric effects on InSAR measurements by incorporating terrain elevation information",

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.",

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T1 - Modeling of atmospheric effects on InSAR measurements by incorporating terrain elevation information

AU - Li, Z. W.

AU - Ding, Xiaoli

AU - Huang, C.

AU - Wadge, G.

AU - Zheng, D. W.

PY - 2006/7/1

Y1 - 2006/7/1

N2 - 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.

AB - 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.

KW - Atmospheric effects

KW - Calibratory method

KW - Elevation-dependent model

KW - SAR interferometry

KW - Simple kriging with varying local means

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DO - 10.1016/j.jastp.2006.03.002

M3 - Journal article

SN - 1364-6826

VL - 68

SP - 1189

EP - 1194

JO - Journal of Atmospheric and Solar-Terrestrial Physics

JF - Journal of Atmospheric and Solar-Terrestrial Physics

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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