Abstract
Sirjan located in Southwest of Kerman City, Iran, is a city with average annual rainfall of 132mm. Over-exploitation of groundwater used for irrigation of pistachios gardens has caused serious land subsidence in Sirjan Plain. In this research we have used the Interferometric Synthetic Aperture Radar technique to estimate the subsidence rate in Sirjan plain. 18 Interferograms extracted from 12 ENVISAT ASAR images spanning between April 2004 and September 2010, have been studied. The SBAS algorithm was then applied in order to estimate the mean subsidence velocity map. Maximum subsidence rate is estimated as 28cm/yr. Furthermore, groundwater level fluctuations in the study area has been investigated in the piezometer wells located in the study area. Comparing between the results obtained from the interferometry and groundwater level fluctuation maps, shows a strong correlation between head decline in groundwater and land subsidence.
| Original language | English |
|---|---|
| Pages (from-to) | 51-57 |
| Number of pages | 7 |
| Journal | International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives |
| Volume | 42 |
| Issue number | 4W4 |
| DOIs | |
| Publication status | Published - Sept 26 2017 |
| Event | Tehran's Joint ISPRS International Conferences of the 2nd Geospatial Information Research, GI Research 2017, the 4th Sensors and Models in Photogrammetry and Remote Sensing, SMPR 2017 and the 6th Earth Observation of Environmental Changes, EOEC 2017 - Tehran, Iran, Islamic Republic of Duration: Oct 7 2017 → Oct 10 2017 |
Keywords
- ENVISAT ASAR
- Insar
- Piezometric wells
- Satellite imagery
- Sirjan Plain
- Subsidence
ASJC Scopus subject areas
- Information Systems
- Geography, Planning and Development