Title :
DInSAR applications to landslide studies
Author :
Refice, A. ; Bovenga, F. ; Guerriero, L. ; Wasowski, J.
Author_Institution :
Dipt. Interateneo di Fisica, Bari Univ., Italy
Abstract :
Operational monitoring of slope instabilities by SAR interferometry poses a number of challenges due to the limited spatial extent of the landsliding areas and the rainy conditions usually associated with mass movement events. In this work, we present applications of DInSAR techniques to the assessment of the stability of landslide-prone areas. A long-term analysis over single, stable scatterers can be attempted, in order to overcome the intrinsic low-coherence conditions associated with landslide sites. The technique, known as the permanent scatterers approach, has been shown to give excellent results over areas with high densities of man-made targets. In this work, some aspects of the PS processing are reviewed and possible improvements are proposed to bring the method to give reliable results over sites with low urbanization such as the rural settings associated with landslide-prone areas in Southern Italy
Keywords :
geomorphology; geophysical techniques; monitoring; radiowave interferometry; rain; remote sensing by radar; synthetic aperture radar; DInSAR applications; PS processing; SAR interferometry; Southern Italy; landslide studies; landslide-prone areas; mass movement events; monitoring; permanent scatterers approach; rainy conditions; rural settings; slope instabilities; Condition monitoring; Electromagnetic scattering; Image analysis; Information retrieval; Interferometry; Motion detection; Pixel; Stability; Synthetic aperture radar; Terrain factors;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976084