Document Type : Applied Article
Authors
1
Department of Physical Geography, PhD student, Faculty of Geography, University of Tehran, Tehran, Iran
2
Department of Physical Geography, Geomorphology, Faculty of Geography, University of Tehran, Tehran, Iran
3
Department of Physical Geography, Water Resources Engineering, Faculty of Geography, University of Tehran, Tehran, Iran
10.22059/jhsci.2024.386086.853
Abstract
The Persepolis World Heritage Site, located in the northern part of Fars Province, is one of Iran’s most significant historical landmarks, dating back to the Achaemenid period (300–560 BC). Studies have shown that the surrounding areas are experiencing land subsidence due to prolonged drought, dam construction, and excessive groundwater extraction. Therefore, this study aims to investigate and map the stability/instability patterns of Persepolis from October 27, 2016, to February 22, 2020, using radar interferometry. To analyze the time series of subsidence in the study area, we applied Persepolis Time Series Analysis (PS-InSAR). The analysis was based on 180 SENTINEL-1A images, covering both ascending and descending orbits, to assess the rate of land deformation at the Persepolis archaeological site. Specifically, we focused on the Takht-e Jamshid region, located on the southern slope of Mount Ko Rahmat, and identified and measured land deformation phenomena there. Our results show that Takht-e Jamshid has not experienced significant subsidence during the observation period (2016–2020), with an estimated rate of -5 to -10 mm per year. This study provides evidence that the observed deformation at the site is not related to the subsidence of the Marvdasht aquifers, which are underlain by Quaternary sediments. These findings contribute to a deeper understanding of land subsidence dynamics in the Takht-e Jamshid region and underscore the need for continued monitoring and management of this invaluable archaeological site.
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