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Volume 39, Issue 2 (2024)
GeoRes 2024, 39(2): 149-159 |
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Received: 2024/03/18 | Accepted: 2024/05/7 | Published: 2024/05/20
Received: 2024/03/18 | Accepted: 2024/05/7 | Published: 2024/05/20
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Mehrabi A, Karimi S, Mohammadi Lahijani A. Monitoring of the Rafsanjan City Subsidence and Its Possible Causes. GeoRes 2024; 39 (2) :149-159
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1- Department of Geography and Urban Planning, Faculty of Literature, Shahid Bahonar University of Kerman, Kerman, Iran
Abstract (684 Views)
Aims: Subsidence is a significant environmental risk in the country's plains. Urban areas located in the plains are at risk of subsidence, posing a hazard to many communities. Hence, this study was conducted to examine the subsidence of Rafsanjan city region in the plain and analyze the potential elements contributing to it.
Methodology: This was a practical research study conducted in Rafsanjan, utilizing a specific approach. The research employed the technique of coherence pixels as its methodology. The utilized data from Sentinel 1 radar pictures pertain to the time period spanning from 2014 to 2022.
Findings: Rafsanjan city has seen a progressive sinking phenomenon, with the rate of subsidence intensifying between 2014 and 2022. The annual subsidence rate has escalated from 11 cm to 13 cm throughout this period. Furthermore, the scope of the affected regions has expanded, resulting in the progression of the development process from the outskirts of the city to the center districts. The subsidence pattern of the city is influenced by the combination of fault maps, changes in subterranean water levels during a 10-year period, and the subsidence map.
Conclusion: The city is experiencing a gradual sinking of the ground, which is spreading towards the inner areas and the center of the city. The uncontrolled extraction of subsurface water sources is a significant factor contributing to the sinking of the city of Rafsanjan. The subsidence of the city is mostly influenced by the Nogh fault.
Methodology: This was a practical research study conducted in Rafsanjan, utilizing a specific approach. The research employed the technique of coherence pixels as its methodology. The utilized data from Sentinel 1 radar pictures pertain to the time period spanning from 2014 to 2022.
Findings: Rafsanjan city has seen a progressive sinking phenomenon, with the rate of subsidence intensifying between 2014 and 2022. The annual subsidence rate has escalated from 11 cm to 13 cm throughout this period. Furthermore, the scope of the affected regions has expanded, resulting in the progression of the development process from the outskirts of the city to the center districts. The subsidence pattern of the city is influenced by the combination of fault maps, changes in subterranean water levels during a 10-year period, and the subsidence map.
Conclusion: The city is experiencing a gradual sinking of the ground, which is spreading towards the inner areas and the center of the city. The uncontrolled extraction of subsurface water sources is a significant factor contributing to the sinking of the city of Rafsanjan. The subsidence of the city is mostly influenced by the Nogh fault.
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References
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