| 泥石流调查遥感解译新方法研究 |
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| 引用本文： | 冯杭建,唐小明,游省易.泥石流调查遥感解译新方法研究[J].中国地质灾害与防治学报,2008,19(3):124-129. |
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| 作者姓名： | 冯杭建 唐小明 游省易 |
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| 作者单位： | 浙江省地质矿产研究所,浙江,杭州,310007 |
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| 基金项目： | 浙江省重大科技专项重点项目 |
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| 摘 要： | 文章在分析总结近年来遥感技术在地质灾害调查评价工作应用的基础上,针对存在的不足,就区域小流域泥石流地质灾害调查评价的遥感解译应用,提出了基于虚拟GIS和水文空间分析的遥感解译方法（RSVH）。该方法综合利用虚拟GIS、遥感图像数字处理技术和空间分析技术,将大尺度区域降级为较小尺度的空间逻辑单元。针对各单元应用遥感影像和高精度DEM数据创建三维虚拟场景。同时叠加地形、地质、岩性、土壤、灾害等具有丰富属性信息的图层,较好地解决了大尺度区域范围内遥感解译工作面临的困难。为小流域地质灾害的调查工作提供了新思路。
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| 关 键 词： | 遥感解译 虚拟GIS 空间分析 小流域 沟谷 三维场景 泥石流 |
New method on remote sensing interpretation for debris flow investigation |
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| FENG Hang-jian,TANG Xiao-ming,YOU Sheng-yi.New method on remote sensing interpretation for debris flow investigation[J].The Chinese Journal of Geological Hazard and Control,2008,19(3):124-129. |
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| Authors: | FENG Hang-jian TANG Xiao-ming YOU Sheng-yi |
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| Institution: | FENG Hang-jian, TANG Xiao-ming, YOU Sheng-yi (Zhejiang Institute of Geology and Mineral Resources, Hangzhou 310007, china) |
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| Abstract: | Through analysis of remote sensing technology＇ s application in the investigation and assessment of geological disaster, in view of the application of remote sensing interpretation about debris flow in small basin area, this paper presents the remote sensing interpretation method （RSVH） based on virtual GIS and hydrology spatial analysis. RSVH integrates virtual GIS, digital processing of remote sensing image and spatial analysis. Through degrades the large scale area to small spatial logic unit （SSLU）, it creates three - dimension virtual scene on the SSLU using remote sensing image and high accuracy DEM data, and overlap layers that has rich attribute information such as terrain, geology, lithology, soil, disaster and so on. It solved the problem well about the remote sensing interpretation in the large scale area, provided a new way for geology disaster investigation work in small basin. |
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| Keywords: | remote sensing interpretation virtual GIS flow spatial analysis small basin valley three-dimension scene debris |
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