海洋测绘2024，Vol.44Issue(1)：31-35,5.DOI:10.3969/j.issn.1671-3044.2024.01.007
基于PS-InSAR的广西北部湾沿岸形变探测及成因分析
Deformation detection and cause analysis of Beibu gulf based on PS-InSAR in Guangxi
罗天宇 1高二涛 1赵威 1肖云志 1李淑娴1
作者信息
- 1. 桂林理工大学测绘地理信息学院,广西桂林 541006
- 折叠
摘要
Abstract
Affected by extreme weather conditions,subsidence geological disasters occur frequently in Guangxi region.To ensure regional sustainable development,36 Sentient-1A images were used to explore the land deformation situation and analyze its causes.Based on PS InSAR and SB AS technology,surface subsidence information from January 2018 to December 2020 in the Beibu Gulf region of Guangxi was obtained.The results show that the two methods have good consistency,the maximum cumulative settlement is-78.1 mm and the maximum average deformation rate is-22.664 mm/a.Combining rainfall data with human activity intensity,the causes of surface deformation were analyzed.The results indicate that the cumulative subsidence in the Beibu Gulf region of Guangxi is positively correlated with human activity intensity;Human activities and rainfall are important reasons for the large-scale irregular subsidence in the Beibu Gulf region of Guangxi.关键词
SAR卫星遥感/合成孔径雷达干涉测量/永久散射体雷达干涉测量/不均匀地面沉降/沉降成因分析Key words
SAR/D-InSAR/PS-InSAR/uneven land subsidence/analysis of subsidence causes分类
天文与地球科学引用本文复制引用
罗天宇,高二涛,赵威,肖云志,李淑娴..基于PS-InSAR的广西北部湾沿岸形变探测及成因分析[J].海洋测绘,2024,44(1):31-35,5.
