میز خدمت الکترونیک
دوره ویراستاری

  اخبار و اعلانات

 آمار

تعداد نشریات127
تعداد شماره‌ها7,119
تعداد مقالات76,512
تعداد مشاهده مقاله152,912,606
تعداد دریافت فایل اصل مقاله115,034,390
Imanpour, Fatemeh, Akhoondzadeh, Mehdi, Fathollahi, Arash. (1405). Monitoring Surface Displacement at the Tang Mud Volcano (Southern Iran) Using SBAS-InSAR and Sentinel-1 Time Series Analysis. , 9(2), -. doi: 10.22059/eoge.2025.398932.1182
Fatemeh Imanpour; Mehdi Akhoondzadeh; Arash Fathollahi. "Monitoring Surface Displacement at the Tang Mud Volcano (Southern Iran) Using SBAS-InSAR and Sentinel-1 Time Series Analysis". , 9, 2, 1405, -. doi: 10.22059/eoge.2025.398932.1182
Imanpour, Fatemeh, Akhoondzadeh, Mehdi, Fathollahi, Arash. (1405). 'Monitoring Surface Displacement at the Tang Mud Volcano (Southern Iran) Using SBAS-InSAR and Sentinel-1 Time Series Analysis', , 9(2), pp. -. doi: 10.22059/eoge.2025.398932.1182
Imanpour, Fatemeh, Akhoondzadeh, Mehdi, Fathollahi, Arash. Monitoring Surface Displacement at the Tang Mud Volcano (Southern Iran) Using SBAS-InSAR and Sentinel-1 Time Series Analysis. , 1405; 9(2): -. doi: 10.22059/eoge.2025.398932.1182

Monitoring Surface Displacement at the Tang Mud Volcano (Southern Iran) Using SBAS-InSAR and Sentinel-1 Time Series Analysis

Earth Observation and Geomatics Engineering
دوره 9، شماره 2، اسفند 2025
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22059/eoge.2025.398932.1182
نویسندگان
Fatemeh Imanpour1؛ Mehdi Akhoondzadeh* 2؛ Arash Fathollahi3
1University Of Tehran, Tehran, Iran
2University of Tehran
3Department of Remote Sensing, Faculty of Social Sciences, Mohaghegh Ardabili University, Ardabil
چکیده
Mud volcanoes are dynamic surface expressions of deep over pressured fluids and gases, requiring precise monitoring to understand their behavior and related hazards. This study investigates ground deformation at the Tang Mud Volcano in southeastern Iran using the Small Baseline Subset (SBAS) InSAR technique applied to 16 Sentinel-1 IW SLC images acquired from December 31, 2023, to December 13, 2024.
Data were processed using the GMTSAR toolbox under a Linux environment, supported by SNAP and GMT. Both Ascending and Descending tracks were analysed to validate deformation signals across viewing geometries. Interferometric analysis included co-registration, baseline estimation, interferogram generation, Goldstein filtering, phase unwrapping, and time-series inversion using Singular Value Decomposition (SVD). Coherence and standard deviation maps ensured data quality.
Results show minimal displacement at the main vent (P1), with cumulative deformation limited to approximately +5 mm, indicating a stable structure. In contrast, a nearby flank area (P2) experienced significant uplift (~+47 mm), suggesting active subsurface processes such as fluid migration or sediment extrusion. Despite the relatively stable behavior observed at the Tang mud volcano itself, the adjacent areas demonstrated significant uplift of up to 6 cm. This level of deformation, occurring over a one-year observation period, highlights the geodynamic activity in parts of the Kahir region. Velocity maps revealed localized deformation rates in mm/year, correlating with fault structures and internal pressure variations.
Time-series analysis highlighted contrasting deformation trends at P1 and P2. The integrated interpretation confirms the effectiveness of SBAS-InSAR in detecting subtle, spatially variable deformation and enhances understanding of the volcano’s internal dynamics. These findings provide valuable insight for geohazard assessment and long-term monitoring of mud volcanoes in tectonically active regions.
کلیدواژه‌ها
Surface Displacement؛ Tang Mud Volcano؛ SBAS-InSAR؛ Sentinel-1 SAR؛ Time Series Analysis
آمار
تعداد مشاهده مقاله: 53





سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب