| 俞海东,陈小红.多时序 InSAR技术在广州花都区地灾探测中的应用[J].矿产勘查,2025,16(S2):261-270 |
| 多时序 InSAR技术在广州花都区地灾探测中的应用 |
| Application of multi-temporal InSAR technique in disaster detection in Huadu District，Guangzhou |
| 投稿时间：2025-07-15 |
| DOI：10.20008/j.kckc.2025s2035 |
| 中文关键词: 广州花都区 时序 InSAR 地灾普查 形变解译 |
| 英文关键词: Huadu District in Guangzhou multi-temporal InSAR geological hazard census deformation interpretation |
| 基金项目:本文受广东省广州市花都区1∶5万地质灾害风险普查(调查)项目(GZ2201150556)资助。 |
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| 摘要点击次数: 25 |
| 全文下载次数: 25 |
| 中文摘要: |
| 广州市花都区地质构造复杂导致的地质灾害问题影响着该区域的人民安全和经济健康发展。 InSAR具有全天候、全天时、高分辨率、高精度、监测范围广等特点。为了分析研究区潜在地质灾害分布和演化规律，本文利用 MT-InSAR技术对广州市花都区 2007年 1月— 2011年 1月的 22景 ALOS-1 SAR影像以及 2017年 1月— 2022年 7月的 166景 Sentinel-1A/B SAR影像进行处理，基于以上两个时间段的监测结果和一种改进后的地灾智能识别方法对研究区进行识别和综合地灾解译，分别得到 22个和 112个形变区域，通过对重点区域分析结果表明:(1)研究区的城区形变产生的原因与人类的频繁活动有关，且主要为正在进行的城市施工建设活动区域，少部分为滑坡等自然地质灾害；(2)基于对 ALOS-1L波段的监测数据的识别结果进行野外调查，验证了一处滑坡灾害。本文方法也可为后续的防灾减灾提供技术指导和支持，保障了广州市花都区的可持续健康发展。 |
| 英文摘要: |
| The geological disasters caused by the complex geological structure in Huadu District，Guangzhou City，affects the safety of the people and the healthy economic development of the region. InSAR has the advantages of all-weather，all-time，high resolution，high accuracy，and large scale monitoring. In order to analyze the distribution and evolution pattern of potential geological disasters in the study area，this article uses MT-InSAR technology to process 22 ALOS-1 SAR images from January 2007 to January 2011 and 166 Sentinel-1 A/B SAR images from January 2017 to July 2022 in Huadu District to obtain the annual average deformation rate andtemporal deformation during these two time periods. Based on the monitoring results of the above two time periodsand an improved intelligent identification method for geological disasters，22 and 112 deformation areas were identified and comprehensively interpreted in the study area，respectively. The results of the analysis of the focus areas show that:(1)The causes of urban deformation in the study area are related to frequent human activities andare mainly in the area of ongoing urban construction activities，with a small number of natural geologic hazards such as landslides；(2)Based on the identification results of monitoring data in the ALOS-1 L band，a field investigation was conducted to verify a landslide disaster. The method proposed in this article also provides techni.cal guidance and support for subsequent disaster prevention and reduction，ensuring the sustainable and healthy development of Huadu District，Guangzhou City. |
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