Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21881
Title: Atmospheric effects on repeat-pass InSAR measurements over Shanghai region
Authors: Li, ZW
Ding, XL 
Huang, C
Zou, ZR
Chen, YL
Keywords: Anisotropy
Atmospheric effects
Non-Gaussian
Power law
SAR interferometry
Issue Date: 2007
Publisher: Elsevier
Source: Journal of atmospheric and solar-terrestrial physics, 2007, v. 69, no. 12, p. 1344-1356 How to cite?
Journal: Journal of Atmospheric and Solar-Terrestrial Physics 
Abstract: It is well known that interferometric synthetic aperture radar (InSAR) measurements are affected by the atmosphere especially the troposphere. We use Shanghai as an example to analyze the properties of the effects based on a number of SAR interferograms over the region. First, Radon transform is used to examine the isotropic property of the effects. The results show that the effects in all the interferograms are anisotropic although they exhibit different patterns. Two different methods, the Jarque-Bera and the Hinich tests, are then applied to test the Gaussianity of atmospheric effects. Both of the tests reveal that the atmospheric effects are non-Gaussian. Finally, spectral analysis of the atmospheric effects is carried out and the results show that the power spectra of the atmospheric signatures in all the interferograms studied follow approximately the power law distribution. The scaling exponents estimated show that the atmospheric signatures in all the interferograms are non-stationary but with stationary increments. It is estimated based on the estimated scaling exponents that external data with spatial resolutions as high as about 0.3 km, are required to determine and correct for over 90% of the atmospheric effects in the SAR interferograms.
URI: http://hdl.handle.net/10397/21881
ISSN: 1364-6826
DOI: 10.1016/j.jastp.2007.04.007
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

17
Last Week
0
Last month
0
Citations as of Sep 24, 2017

WEB OF SCIENCETM
Citations

15
Last Week
0
Last month
0
Citations as of Sep 21, 2017

Page view(s)

52
Last Week
3
Last month
Checked on Sep 24, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.