| 联合升降轨InSAR 与高分辨率光学遥感的滑坡隐患早期识别 |
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| 引用本文： | 涂宽, 王文龙, 谌华, 李樵民, 耿丹, 王川, 郑健, 杨影. 联合升降轨InSAR 与高分辨率光学遥感的滑坡隐患早期识别——以宁夏隆德为例[J]. 中国地质灾害与防治学报, 2021, 32(6): 72-81. doi: 10.16031/j.cnki.issn.1003-8035.2021.06-09 |
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| 作者姓名： | 涂宽 王文龙 谌华 李樵民 耿丹 王川 郑健 杨影 |
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| 作者单位： | 1.二十一世纪空间技术应用股份有限公司，北京 100096;; 2.宁夏回族自治区遥感测绘勘查院(宁夏回族自治区遥感中心)，宁夏 银川 750021;; 3.高分辨率对地观测系统宁夏数据与应用中心，宁夏 银川 750021 |
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| 基金项目： | 国家重点研发计划项目 “星机协同的震后灾情信息快速动态调查技术系统”（2017YFC1500901）；宁夏科技厅重点研发计划项目“宁夏智慧遥感大数据服务平台关键技术研究及应用示范项目”（2020BFG92013） |
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| 摘 要： | 宁夏隆德县地处六盘山西麓，地质条件复杂，受季节性强降雨影响，滑坡地质灾害频发，给当地人民生命财产安全造成了严重威胁。针对宁夏东部和南部植被覆盖率高的特点，文章利用合成孔径雷达升降轨差分干涉测量（Synthetic Aperture Radar Difference Interferometry, D-InSAR）技术与高分辨率光学遥感相结合，对隆德县展开滑坡隐患早期识别与探测研究。首先通过干涉叠加技术（Stacking）分别获得2019年1月—2020年5月隆德县升轨和降轨方向的雷达视向形变速率，然后结合高分辨率光学遥感影像产品和数字高程模型（DEM），基于专家判识经验建立适用于该研究区的滑坡隐患形态和变形解译标志，完成全县范围的滑坡隐患综合遥感识别和地面调查工作。本次遥感调查工作共识别滑坡隐患47处，野外调查验证21处，其中核实16处，准确率为71.4%。实地调查结果验证了综合遥感识别与探测技术在宁夏南部地质灾害隐患遥感调查的适用性和可行性，同时也验证了识别结果的准确性，为宁夏南部地区滑坡防治和突发地质灾害应急提供了重要的科学依据。
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| 关 键 词： | 隆德县 滑坡隐患识别 升降轨结合 差分干涉测量技术 高分辨率光学遥感 |
| 收稿时间： | 2021-02-09 |
| 修稿时间： | 2021-07-06 |
Early identification of hidden dangers of lanslides based on the combination of ascending and descending orbits InSAR and high spatial resolution optical remote sensing: A case study of landslides in Longde County,southern Ningxia |
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| TU Kuan, WANG Wenlong, CHEN Hua, LI Qiaomin, GENG Dan, WANG Chuan, ZHENG Jian, YANG Ying. Early identification of hidden dangers of lanslides based on the combination of ascending and descending orbits InSAR and high spatial resolution optical remote sensing: A case study of landslides in Longde County, southern Ningxia[J]. The Chinese Journal of Geological Hazard and Control, 2021, 32(6): 72-81. doi: 10.16031/j.cnki.issn.1003-8035.2021.06-09 |
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| Authors: | TU Kuan WANG Wenlong CHEN Hua LI Qiaomin GENG Dan WANG Chuan ZHENG Jian YANG Ying |
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| Affiliation: | 1.Twenty First Century Aerospace Technology Co. Ltd., Beijing 100096, China.;; 2.Ningxia Institute of Remote Sensing Surveying and Mapping, Yinchuan, Ningxia 750021, China;; 3.Ningxia Data and Application Center of High Resolution Earth Observation System, Yinchuan, Ningxia 750021, China |
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| Abstract: | Longde County in southern Ningxia is located at the western foot of Liupan mountain. Geological conditions is complicated. Affected by seasonal heavy rainfall, landslides and geological disasters occur frequently in the area, which poses a serious threat to local people's lives and property. In consideration of the high fractional vegetation in study area, integrated remote sensing technologies combined of Synthetic Aperture Radar Difference Interferometry technology and high spatial resolution optical remote sensing have been used in early detection of Landslides in the Longde county. Stacking technology has been used to calculate the rate of deformation from 2019.01 to 2021.05, in the direction of ascending and descending orbit. Combining high spatial resolution optical remote sensing images and digital elevation model (DEM), the interpretation key of landslide in the area deformation has been established. Then the early detection of landslides and ground survey in Longde county have been done. Through the integrated remote sensing technologies, 47 landslides were detected. 21 landslides were surveyed by field, of which 16 were verified, with an accuracy rate of 71.4%. The results of field survey demonstrated the applicability and feasibility of integrated remote sensing technology in the detection of landslides in southern Ningxia. Meanwhile, and the accuracy of the results in Longde county has been testified. The results of the early detection through integrated remote sensing technology provided significant scientific bases for the landslide protection and emergency response to sudden geological disasters in southern Ningxia. |
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| Keywords: | Longde County early detection of landslide combined ascending and descending synthetic aperture radar difference interferometry technology high spatial resolution optical remote sensing |
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