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Analysis of Geomorphological Changes and Ground Dynamics in Greater Tunb Island Based on InSAR Data: An Approach Towards Sustainable Development
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Abolghasem Goorabi *   |
| University of Tehran , goorabi@ut.ac.ir |
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Abstract: (36 Views) |
Greater Tunb Island, as one of the active salt domes in the Persian Gulf, undergoes significant geomorphological changes that impact its ground stability and sustainable infrastructure development. In this study, the dynamics of ground deformation, including uplift and subsidence, were analyzed using Interferometric Synthetic Aperture Radar (InSAR) and Sentinel-1 satellite data processing during the period 2014 to 2020. The PSInSAR algorithm was applied to process the data and extract stable scatterer points, offering high precision in detecting subtle surface changes. The results revealed that the northern parts of the island experienced the highest rate of uplift, with a maximum value of 35.83 mm/year, attributed to salt tectonic activities of the subsurface salt dome. In contrast, land subsidence was observed in areas such as the port, with a rate of -7.2 mm/year, likely caused by human activities and structural loading. Furthermore, deformation at the airport runway exhibited a combination of uplift and subsidence, indicating the necessity for precise monitoring and stabilization measures.Analysis of deformation maps showed that, while the overall rate of changes remained stable, certain areas experienced sudden variations. These changes pose a serious threat to the island’s critical infrastructure and highlight the need for sustainable development planning and land-use management aligned with deformation rates. Finally, this study underscores the importance of continuous monitoring and the use of long-term InSAR data to predict the behavior of salt domes and manage unstable areas in similar islands across the Persian Gulf. The findings of this research can serve as a critical reference for planning sustainable development in islands with comparable geological structures.
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| Keywords: Radar Interferometry, PSInSAR, Geomorphological Changes, Salt Dome, Sustainable Development, Greater Tunb Island |
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Full-Text [PDF 1680 kb]
(19 Downloads)
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Type of Study: Research |
Subject:
General
Received: 2024/12/9 | Accepted: 2024/12/21 | Published: 2025/01/26
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| * Corresponding Author Address: Faculty of Geography, University of Tehran, Enqlab Avenue, P.O. Box: 1417853933, Tehran, Iran |
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