Journal of Remote Sensing & GIS

Ilan Azaria

Publications

• Research Article
  Using Combined Close-Range Active and Passive- Remote Sensing Methods to Detect Sinkholes
  Author(s): Naftly Goldshleger, Uri Basson, Ilan Azaria and Shlomo FastigNaftly Goldshleger, Uri Basson, Ilan Azaria and Shlomo Fastig
  
  In the Dead Sea region of Israel, sinkholes collapse can be observed easily due to the large number of sites. The continuous decrease in Dead Sea level over the last 30 years, caused a substantial increases the sinkhole activity (more than 3,000 sinkholes upper layer collapse). Sinkholes of up to 50 m diameter are found to be clustered in sites with variable characteristics. In this research, we have developed methods for prediction of sinkholes appearance by using mapping and monitoring methods based on active and passive remote-sensing means. These methods are based on measurements from several instruments including field spectrometry, geophysical ground-penetration radar (GPR) and a frequency domain electromagnetic (FDEM) instrument. Field spectrometry was used to compare the spectral signatures of soil samples collected near progressing sinkholes and those taken in regions with no.. View More»
  DOI: 10.4172/2469-4134.1000222

  Abstract PDF