Paper Info
Title
SAR Interferometry for Sinkhole Early Warning and Susceptibility Assessment along the Dead Sea, Israel.
Abstract
During the past three decades, the Dead Sea (DS) water level has dropped at an average rate of 1 m/year, resulting in the formation of thousands of sinkholes along its coastline that severely affect the economy and infrastructure of the region. The sinkholes are associated with gradual land subsidence, preceding their collapse by periods ranging from a few days to about five years. We present the results of over six years of systematic high temporal and spatial resolution interferometric synthetic aperture radar (InSAR) observations, incorporated with and refined by detailed Light Detection and Ranging (LiDAR) measurements. The combined data enable the utilization of interferometric pairs with a wide range of spatial baselines to detect minute precursory subsidence before the catastrophic collapse of the sinkholes and to map zones susceptible to future sinkhole formation. We present here four case studies that illustrate the timelines and effectiveness of our methodology as well as its limitations and complementary methodologies used for sinkhole monitoring and hazard assessment. Today, InSAR-derived subsidence maps have become fundamental for sinkhole early warning and mitigation along the DS coast in Israel and are incorporated in all sinkhole potential maps which are mandatory for the planning and licensing of new infrastructure.
Year
DOI
Venue
2019
10.3390/rs11010089
REMOTE SENSING
Keywords
Field
DocType
Dead Sea,sinkholes,COSMO-SKYMED,InSAR,subsidence,monitoring
Warning system,Sinkhole,Remote sensing,Interferometry,Geology
Journal
Volume
Issue
Citations 
11
1
0
PageRank 
References 
Authors
0.34
5
7
Name
Order
Citations
PageRank
Ran N. Nof100.34
Meir Abelson200.34
Eli Raz300.34
Yochay Magen400.34
Simone Atzori5215.54
Stefano Salvi6134.55
Gidon Baer700.34