نوع مقاله : پژوهشی
نویسندگان
1 استاد ژئومورفولوژی، گروه ژئومورفولوژی، دانشکده برنامهریزی و علوم محیطی، دانشگاه تبریز
2 دانشیار، گروه سنجش از دور و سیستم اطلاعات جغرافیایی، دانشکده برنامهریزی و علوم محیطی، دانشگاه تبریز،
3 دانشجوی دکتری ژئومورفولوژی، گروه ژئومورفولوژی، دانشکده برنامهریزی و علوم محیطی، دانشگاه تبریز، تبریز،
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
, this investigation was conducted with the primary objective of assessing the ground deformation potential (subsidence) in the Tabriz Plain, encompassing the period from 2017 to 2024, as an integral part of the Lake Urmia catchment basin. To achieve this objective, forty-three (43) Sentinel-1 Synthetic Aperture Radar (SAR) images acquired within the aforementioned temporal span were utilized, employing the Small BAseline Subset (SBAS) Time-Series Interferometry technique. The results obtained from the time-series interferometric analysis indicate that the study area experienced vertical displacements ranging from +9 cm (uplift) to -72 cm (subsidence) between 2017 and 2024. Based on these findings, it can be stated that the marginal areas of the Tabriz Plain are experiencing uplift of approximately 1 to 3 cm annually, which signifies the region’s active tectonics. Concurrently, the central Tabriz Plain is undergoing subsidence at a rate of approximately 10 cm per year. The results of the spatial analysis of the occurred subsidence indicate that the highest rates of subsidence are associated with the central regions of the Tabriz Plain and the northern sections of the main Tabriz-Urmia highway. The examination of the groundwater level data also clearly demonstrated that the severe decline in primary groundwater resources is the main driver (or primary trigger) for the observed land subsidence.
کلیدواژهها [English]
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