Slope Stability Assessment of the Sarcheshmeh Landslide, Northeast Iran, Investigated Using InSAR and GPS Observations

Remote Sensing

Mehrdad Akbarimehr²  Mahdi Motagh¹ 

[1]Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, D-14473 Potsdam, Germany

[2] E-Mail:

[3]Department of Surveying and Geomatics Engineering, University of Tehran, Tehran 14395-515, Iran

[4] E-Mail:

关键词: landslide;    slope stability;    displacement;    InSAR;    GPS;   

DOI  :  10.3390/rs5083681

来源: mdpi

【 摘 要 】

The detection and monitoring of mass movement of susceptible slopes plays a key role in mitigating hazards and potential damage associated with creeping slopes and landslides. In this paper, we use observations from both Interferometric Synthetic Aperture Radar (InSAR) and Global Positioning System (GPS) to assess the slope stability of the Sarcheshmeh ancient landslide in the North Khorasan province of northeast Iran. InSAR observations were obtained by the time-series analysis of Envisat SAR images covering 2004–2006, whereas repeated GPS observations were conducted by campaign measurements during 2010–2012. Surface displacement maps of the Sarcheshmeh landslide obtained from InSAR and GPS are both indicative of slope stability. Hydrogeological analysis suggests that the multi-year drought and lower than average precipitation levels over the last decade might have contributed to the current dormancy of the Sarcheshmeh landslide.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland