1. Insar atmospheric delays compensation: Case study in tenerife island
- Author
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Javier Duro, Jordi J. Mallorqui, Zhongbo Hu, Giuseppe Centolanza, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, and Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
- Subjects
Synthetic aperture radar ,Teledetecció ,010504 meteorology & atmospheric sciences ,differential interferograms ,Atmospheric model ,010502 geochemistry & geophysics ,01 natural sciences ,Tenerife island ,Differential Interferometry SAR ,ground deformation ,geoscience community ,Interferometric synthetic aperture radar ,mountainous areas ,InSAR atmospheric delays compensation ,0105 earth and related environmental sciences ,Remote sensing ,Group delay and phase delay ,conventional empirical linear model ,Radar ,Atmospheric models ,Linear model ,Enginyeria de la telecomunicació [Àrees temàtiques de la UPC] ,stratified atmospheric phase delay ,Azimuth ,Atmospheric Phase Screen ,Interferometry ,Environmental science ,Global Atmospheric Models ,largest challenges ,advanced technique - Abstract
Differential Interferometry SAR (DInSAR) is an advanced technique to retrieve ground deformation in the geoscience community. Atmospheric Phase Screen (APS) is one of the largest challenges limiting the application of DInSAR especially in mountainous areas. In this paper we propose an approach based on an empirical linear model for compensating stratified atmospheric phase delay in differential interferograms. Compared with conventional empirical linear model, the influence of turbulent APS is taken into consideration in our work. With this, the modelled stratified APS is more accurate. We test our algorithm using Envisat dataset and Sentinel dataset over Tenerife island (Spain). The performance of the approach is compared with Global Atmospheric Models (GAMs).
- Published
- 2017
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