Dynamics of Slow-Moving Landslides from Permanent Scatterer Analysis
作者： George E Hilley , Roland Burgmann , Alessandro Ferretti , Fabrizio Novali , Fabio Rocca
关键词: Precipitation 、 Geomorphology 、 Displacement (fluid) 、 Meteorology 、 Lead (sea ice) 、 Interferometric synthetic aperture radar 、 Pore water pressure 、 Creep 、 Active fault 、 Geology 、 Landslide 、 Multidisciplinary
摘要: High-resolution interferometric synthetic aperture radar (InSAR) permanent scatterer data allow us to resolve the rates and variations in of slow-moving landslides. Satellite-to-ground distances (range changes) on landslides increase at 5 7 millimeters per year, indicating average downslope sliding velocities from 27 38 year. Time-series analysis shows that displacement occurs mainly during high-precipitation season; 1997-1998 El Nino event, range change increased as much 11 The observed nonlinear relationship creep precipitation suggests pore fluid pressures within shallow subsurface may initiate accelerate these features. Changes slope a hill resulting increases pressure lithostatic stress gradients then lead
sciencemag.org
core.ac.uk
unirioja.es
harvard.edu参考文章(9)
Roland Bürgmann, Dominic Schmidt, RM Nadeau, M d'Alessio, E Fielding, D Manaker, TV McEvilly, MH Murray, Earthquake Potential Along the Northern Hayward Fault, California Science. ,vol. 289, pp. 1178- 1182 ,(2000) , 10.1126/SCIENCE.289.5482.1178
B. Fruneau, J. Achache, C. Delacourt, Observation and modelling of the Saint-Étienne-de-Tinée landslide using SAR interferometry Tectonophysics. ,vol. 265, pp. 181- 190 ,(1996) , 10.1016/S0040-1951(96)00047-9
John Conrad Jaeger, N. G. W. Cook, Fundamentals of rock mechanics ,(1969)
Karl Vonder Linden, The Portuguese bend landslide Engineering Geology. ,vol. 27, pp. 301- 373 ,(1989) , 10.1016/0013-7952(89)90037-9
James J. Lienkaemper, Jon S. Galehouse, Robert W. Simpson, Long-term monitoring of creep rate along the Hayward Fault and evidence for a lasting creep response to 1989 Loma Prieta Earthquake Geophysical Research Letters. ,vol. 28, pp. 2265- 2268 ,(2001) , 10.1029/2000GL012776
A. Ferretti, C. Prati, F. Rocca, Permanent scatterers in SAR interferometry IEEE Transactions on Geoscience and Remote Sensing. ,vol. 39, pp. 8- 20 ,(2001) , 10.1109/36.898661
Didier Massonnet, Kurt L. Feigl, Radar interferometry and its application to changes in the Earth's surface Reviews of Geophysics. ,vol. 36, pp. 441- 500 ,(1998) , 10.1029/97RG03139
C. Colesanti, A. Ferretti, F. Novali, C. Prati, F. Rocca, SAR monitoring of progressive and seasonal ground deformation using the permanent scatterers technique IEEE Transactions on Geoscience and Remote Sensing. ,vol. 41, pp. 1685- 1701 ,(2003) , 10.1109/TGRS.2003.813278
Roland Bürgmann, Paul A. Rosen, Eric J. Fielding, SYNTHETIC APERTURE RADAR INTERFEROMETRY TO MEASURE EARTH'S SURFACE TOPOGRAPHY AND ITS DEFORMATION Annual Review of Earth and Planetary Sciences. ,vol. 28, pp. 169- 209 ,(2000) , 10.1146/ANNUREV.EARTH.28.1.169