1887

Abstract

InSAR is a convenient method to uniformly map long term strain rate and was successfully used that way in fast deforming regions. However, because the radar signal might be subject to atmospheric perturbations and could equally register anthropic or hydrologic related deformations, the monitoring of slowly deforming areas remains challenging. The surface displacement may actually be described in the spatial frequency domain as a mix of these various components: the atmospheric term, the ground term and the tectonic term. Each of these terms have a specific bandwidth that can be identified and extracted from the velocity signal. This paper present an approach based on such a spatial frequency analysis that aims at extracting the specific tectonic wavelength signal in order to capture strain rate variability in slow deforming regions.

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/content/papers/10.3997/2214-4609.201801898
2018-06-10
2024-03-28
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201801898
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