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Validation and comparison of advanced differential interferometry techniques: Murcia metropolitan area case study / G. Herrera in ISPRS Journal of photogrammetry and remote sensing, vol 64 n° 5 (September - October 2009)

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 64 n° 5 (September - October 2009) . - pp 501 - 512 Titre : Validation and comparison of advanced differential interferometry techniques: Murcia metropolitan area case study Type de document : Article/Communication Auteurs : G. Herrera, Auteur ; R. Tomas, Auteur ; Juan M. Lopez-Sanchez, Auteur ; J. Delgado, Auteur ; F. Vicente, Auteur ; et al., Auteur Année de publication : 2009 Article en page(s) : pp 501 - 512 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications [Termes IGN] analyse comparative [Termes IGN] aquifère [Termes IGN] déformation de la croute terrestre [Termes IGN] extensomètre [Termes IGN] image Envisat-ASAR [Termes IGN] image ERS-SAR [Termes IGN] interferométrie différentielle [Termes IGN] interféromètrie par radar à antenne synthétique [Termes IGN] métropole [Termes IGN] Murcie (Espagne) [Termes IGN] série temporelle [Termes IGN] surveillance géologique [Termes IGN] vitesse [Termes IGN] zone urbaine Résumé : (Auteur) This paper is focused on the analysis of the performance of Stable Point Network (SPN) and Coherent Pixel Technique (CPT), which are Advanced Differential Interferometry Techniques (A-DInSAR) that estimate, among other results, mean deformation velocity maps of the ground surface and displacement time series from a SAR dataset. The test site is the metropolitan area of the city of Murcia (Spain) where a moderate slow subsidence induced by the overexploitation of aquifers is present. SAR data acquired between July 1995 and August 2005 from ERS and ENVISAT sensors have been processed by the SPN and CPT techniques and compared with in situ instrumental measurements assumed as reference. Experimental results have shown that both SPN and CPT techniques provide estimates of the deformation evolution in time with an absolute difference below 6 mm consistently in all comparisons: SPN vs extensometer, CPT vs extensometer and SPN vs CPT. The proposed validation and comparison experiment between both A-DInSAR techniques has been useful to observe their differences and complementarities. Copyright ISPRS Numéro de notice : A2009-403 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30034 [article]

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