Investigation of Land Subsidence in Orzuiyeh Plain of Kerman Using Radar Differential Interference Method (DINSAR)

The phenomenon of subsidence of the earth occurrence causes wide–raging problems and dangers. The occurrence of this phenomenon causes problems for farmers, the destruction of communication lines and infrastructures and some other issues. In this research from differential interference (DINSAR) and using ASAR sensor data from 2009 to 2010 and sensors sentinel 1 in 2014 – 2015 in relation to the Kerman's Orzuiyeh plain, it is tried to depict the phenomenon of desertification in the picture of the Kerman valley. Temporal and spatial changes have been made in this plain. Seascape software is used to process the image. The results of the series analysis shows that the region is continuously subsiding; the amount of subsidence per year 2008 to 2009 is 15 centimeters, the most abandoned has been in the northwest and central plain; and in 2009 by 9, and 100 cm in 2010, which is still the highest amount of subsidence in the northwest and central plain. For the year 2014 and 2015 it is 8.2 cm which is in the southeast part of the Orzuiyeh plain. Observing the subsidence images of these years it can be concluded that Orzuiyeh's desertification is dynamic and a trend from the north to west of the plain.