基于综合遥感的察隅县滑坡隐患识别及致灾机理分析  

Integrated remote sensing-based hazard identification and disaster-causing mechanisms of landslides in Zayu County

作　　者：蔡建澳 明冬萍[1,2] 赵文祎 凌晓 张雨 张星星 CAI Jian’ao;MING Dongping;ZHAO Wenyi;LING Xiao;ZHANG Yu;ZHANG Xingxing(School of Information Engineering,China University of Geosciences(Beijing),Beijing 100083,China;Frontiers Science Center for Deep-time Digital Earth,China University of Geosciences(Beijing),Beijing 100083,China;China Geological Environment Monitoring Institute,Beijing 100081,China)

机构地区：[1]中国地质大学(北京)信息工程学院,北京100083 [2]深时数字地球前沿科学中心,北京100083 [3]中国地质环境监测院,北京100081

出　　处：《自然资源遥感》2024年第1期128-136,共9页Remote Sensing for Natural Resources

基　　金：国家重点研发计划项目课题“边海重点区域安全态势预警智能技术”(编号:2022YFB3903604);国家自然科学基金项目“基于深度学习变化检测的高分遥感震后建筑物倒损识别”(编号:42371379);中央高校基本科研业务费“深时数字地球前沿科学中心“深时数字地球”中央高校科技领军人才团队项目”(编号:2652023001)共同资助。

摘　　要：察隅县地处青藏高原东南部,幅原辽阔,地形地貌与气候特征差异较大,滑坡灾害频发。针对该区域开展滑坡灾害隐患识别与早期预警对当地防灾减灾工作有重要意义。为此,收集2020年1月—2022年11月获取的162景升降轨Sentinel-1A雷达遥感影像数据及高分光学遥感影像数据,以Google Earth平台为辅助,采用综合遥感(integrated remote sensing,IRS)技术开展研究区内活动性滑坡隐患识别、编录制图和分析评价,共识别出活动性滑坡隐患237处,主要分布于贡日嘎布曲(察隅河支流西支)、察隅河、怒江两岸及察隅河东部至怒江西部的区域。将解译结果与地形地貌(高程、坡度、岩性)、自然环境(降雨、温度)等定量因子结合进行统计分析可知,左布村滑坡、阿扎村滑坡有极大的灾害风险,推荐进一步采取减灾措施。研究结果具有较高精度,可为当地防灾减灾工作提供参考。Zayu County,located in the southeastern portion of the Qinghai-Tibet Plateau,is characterized by a large area,significantly varying topographic and climatic characteristics,and frequent landslides.The hazard identification and early warning of landslides are critical to disaster prevention and mitigation in the county.Based on the data acquired from January 2020 to November 2022,including 162 scenes of Sentinel-1A Radar remote sensing images taken on ascending and descending passes and high-resolution optical remote sensing images,this study conducted hazard identification,cataloging,mapping,analysis,and assessment of active landslides in Zayu County using the integrated remote sensing(IRS)technique on the Google Earth platform.A total of 237 active landslide hazards were identified primarily along the Gongrigabuqu River(the western tributary of the Zayu River),Zayu River,both sides of the Nujiang River,and the eastern Zayu River to the western Nujiang River.As revealed by the statistical analysis of the interpretation results combined with quantitative factors such as topography(elevation,slope,lithology)and natural environment(rainfall,temperature),the landslides in Zuobu and Azha villages pose high disaster risks,necessitating further mitigation measures.With relatively accurate results,this study can serve as a reference for disaster prevention and mitigation in Zayu County.

关 键 词：综合遥感(IRS) 短基线集干涉合成孔径雷达(SBAS-InSAR) 察隅县 活动性滑坡 滑坡监测 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]