1. 成都理工大学地质灾害防治与地质环境保护国家重点实验室
2. 应急管理部滑坡灾害风险预警与防控实验室
纸质出版:2026
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秦佳松, 李为乐, 单云锋, 等. 融合时序InSAR形变的石棉县滑坡易发性评价[J]. 地质科技通报, 2026,45(1):199-211.
秦佳松, 李为乐, 单云锋, et al. 融合时序InSAR形变的石棉县滑坡易发性评价[J]. Bulletin of Geological Science and Technology, 2026, 45(1): 199-211.
秦佳松, 李为乐, 单云锋, 等. 融合时序InSAR形变的石棉县滑坡易发性评价[J]. 地质科技通报, 2026,45(1):199-211. DOI: 10.19509/j.cnki.dzkq.tb20240342.
秦佳松, 李为乐, 单云锋, et al. 融合时序InSAR形变的石棉县滑坡易发性评价[J]. Bulletin of Geological Science and Technology, 2026, 45(1): 199-211. DOI: 10.19509/j.cnki.dzkq.tb20240342.
滑坡作为一种对自然和社会环境造成极大破坏的地质灾害,其易发性评价对防灾减灾至关重要。现有的滑坡数据库常作为滑坡易发性评价的数据基础,由于更新不及时,存在时效性差和不全面等问题。此外,传统的滑坡易发性评价方法主要依赖于静态数据(如地形、地质、水文),缺乏动态数据(如地表形变),难以全面捕捉正在变形的滑坡特征,导致评价的可靠性较差。结合光学遥感技术和合成孔径雷达干涉测量(InSAR)技术识别研究区滑坡并获取地表形变作为动态评价因子,结合静态评价因子,采用联合训练和加权叠加2种方法,耦合最大熵(MaxEnt)模型,并使用迭代自组织(ISO)聚类算法对石棉县进行了滑坡易发性评价及分区。结果表明:(1)综合光学遥感技术和InSAR技术2种方法,在研究区共识别出139处滑坡,研究区滑坡灾害高易发区主要分布于河流和道路两侧,滑坡灾害点的分布与所划分区域有很好的吻合性。(2)补充InSAR形变因子在一定程度上提高了6.1%的易发性精度(受试者工作特征曲线(ROC)下面积AUC=0.921),同时显著地降低了评估结果中出现假阳性和假阴性的情况,提高了模型的精确性。该研究突出了将InSAR形变信息融入滑坡易发性模型中的优势,可为石棉县滑坡灾害预防提供重要支撑。
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