Analysis with C- and X-band satellite SAR data of the Portalet landslide area

作者：Herrera Gerardo^*; Notti Davide; Carlos Garcia Davalillo Juan; Mora Oscar; Cooksley Geraint; Sanchez Monica; Arnaud Alain; Crosetto Michele

来源：Landslides, 2011, 8(2): 195-206.

DOI：10.1007/s10346-010-0239-3

• Landslides
• Deformation
• Interferometry
• SAR
• X-band

This paper describes the use of the Stable Point Network technique, a Persistent Scatterer Interferometry SAR technique, for the analysis of the Portalet landslide area (Central Pyrenees, Spain). For this purpose, different SAR datasets acquired by ERS-1, ERS-2, ENVISAT and TerraSAR-X satellites have been analysed. The use of different SAR images acquired by satellite radar sensors operating at different microwave lengths has allowed for a comparative assessment and illustration of the advantages and disadvantages of these satellites for landslide detection and monitoring. In the introduction, differential interferometry and the study area are briefly described. Then the specifics of the SPN processing and the results of the different datasets are described and compared. In Analysis of the results: the Portalet landslide area, the Portalet landslide area is introduced and the radar displacement measurements are analysed with available geo-information data. Additionally, X-band measurements are compared with those gathered by a ground-based SAR for a previous project. Finally, the most relevant conclusions of this work are discussed.

• 出版日期2011-6