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Evaluating the rate of subsidence of the Samalghan Plain using radar interferometry
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Ebrahim Amiri    , Mohammad Motamedirad * , Ali Sadeghi , Farzad Amiri |
| Assistant Professor, Department of Geography Education, Farhangian University, Tehran, Iran, Email: m.motamedirad@cfu.ac.ir |
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Abstract: (110 Views) |
| Subsidence can have many negative effects on infrastructure, the environment, and ecosystems. Therefore, an accurate and complete understanding of subsidence is essential to reduce the damage caused by the subsidence phenomenon. This research aimed to assess the subsidence rate of the Samalghan Plain using radar interferometry during the period from March 2021 to June 2024 using SNAP software. Ground data, such as piezometric wells and groundwater level drop rates during minimum and maximum periods, and exploitation wells, were used to calculate the discharge rate at the aquifer level using interpolation using the IDW method. The results of the study show that the subsidence rate in the study basin is within the desired range of 1 to 10 mm, and 35.18 percent of the basin area is in the very high critical zone and 36.88 percent is in the very critical zone, and in total, 72.06 percent of the study basin is in the very high critical and very critical subsidence zones. The subsidence rate in the very high critical zone is 4 to 10 mm, which indicates high subsidence rates in the south, center, west, and part of the north of the basin. The wells of Hyderabad-Ghale Khan Road, Mulla Hassan, Bagh Nodeh, and Ebtedaye Ghori are located in the very high critical zone. Due to its specific geological characteristics and excessive exploitation of groundwater resources, the Samalghan Plain is at risk of subsidence. To manage this phenomenon, it is necessary to take measures such as sustainable management of groundwater resources, reducing excessive groundwater extraction, artificially feeding aquifers, and carefully monitoring the water table and examining hydrogeological changes in the region to help control subsidence and prevent its increase. |
Article number: 4 |
| Keywords: Radar, Semlghan, Sentinel, Subsidence, SNAP |
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Full-Text [PDF 2804 kb]
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Type of Study: Research |
Subject:
Special
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