Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1778380 | Journal of Atmospheric and Solar-Terrestrial Physics | 2006 | 6 Pages |
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 2Â 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.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
Z.W. Li, X.L. Ding, C. Huang, G. Wadge, D.W. Zheng,