Scholarlink

<p>This research utilizes satellite data to analyze the land displacement in the region. The PS-InSAR technique utilizes long-term coherent radar measurements from synthetic aperture radar (SAR) images to produce high-resolution maps of surface displacement, making it an effective tool for monitoring and assessing ground subsidence in regions with high urbanization and industrial activities. In this research, 166 Sentinel-1 images were taken in the study area between 2016 and 2021. All the images collected are in ascending path. For processing the Persistent Scatterer Interferometry Synthetic Aperture Radar (PS-InSAR) data, Sarproz software is used&#xa0;for analysis. According to the results, a high amount of subsidence was recorded in the urban part of the research area, where urbanization takes place. The high rate of cumulative displacement monitored in the study area is 12&#xa0;mm/year. The remaining part of the study area show lower subsidence or no subsidence as compared to the urban part. According to the report of the Kanchipuram district, displacement is caused by a decrease in groundwater levels due to over-extraction of under&#xa0;groundwater. This study indicates that in the study area, major management planning should be implemented for using the groundwater.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Estimation of Subsidence Over a Part of Kanchipuram District Using Sentinel-1 SAR Data

  • 期刊论文

  • 发表日期：

    2025年1月10日

查看全文
  • Smruti Ranjan Sahu,
  • Kishan Singh Rawat,
  • Sudhir Kumar Singh,
  • Kapil Malik

摘要

This research utilizes satellite data to analyze the land displacement in the region. The PS-InSAR technique utilizes long-term coherent radar measurements from synthetic aperture radar (SAR) images to produce high-resolution maps of surface displacement, making it an effective tool for monitoring and assessing ground subsidence in regions with high urbanization and industrial activities. In this research, 166 Sentinel-1 images were taken in the study area between 2016 and 2021. All the images collected are in ascending path. For processing the Persistent Scatterer Interferometry Synthetic Aperture Radar (PS-InSAR) data, Sarproz software is used for analysis. According to the results, a high amount of subsidence was recorded in the urban part of the research area, where urbanization takes place. The high rate of cumulative displacement monitored in the study area is 12 mm/year. The remaining part of the study area show lower subsidence or no subsidence as compared to the urban part. According to the report of the Kanchipuram district, displacement is caused by a decrease in groundwater levels due to over-extraction of under groundwater. This study indicates that in the study area, major management planning should be implemented for using the groundwater.