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所在平台: Udemy |
课程主页: https://www.udemy.com/course/landslide-risk-analysis-with-arcgis-desktop-ahp-method/
课程评论：没有评论
**课程名称：** 利用遥感和GIS/AHP进行滑坡风险分析 **课程概述：** 本课程旨在教授学员如何利用地理信息系统（GIS）和层次分析法（AHP）进行滑坡风险分析。课程将重点讲解如何获取、处理和分析应用于风险分析的各类地理空间数据，包括： * **数据准备：** 学习如何下载和准备分析所需的数据，以及各种地理处理过程。 * **栅格与矢量数据处理：** 详细介绍栅格和矢量数据的准备方法，投影转换，字段添加，以及快速完成栅格与矢量相互转换的技巧。 * **滑坡风险模型构建：** 运用AHP多准则决策方法，计算10个不同影响因子的权重和效应。 * **GIS空间分析：** 利用GIS技术，对数字地图进行叠加分析（Weighted Overlay Analysis），包括高程、坡度、坡向、曲率、降水量、NDVI（归一化植被指数）、土地利用、相对起伏、距河流距离、距公路距离等图层。 * **结果解读：** 通过叠加分析和重力等级处理，识别和确定潜在的滑坡风险区域。 **学习目标：** 完成本课程后，学员将能够： * 独立获取和准备滑坡风险分析所需的各类地理空间数据。 * 熟练掌握GIS软件中的数据处理和空间分析工具。 * 运用AHP方法确定影响因子权重，并构建滑坡风险评估模型。 * 分析和解读滑坡风险图，识别高风险区域。 * 将所学知识应用于全球任何地区的类似研究。 **课程特色：** * 基于实际案例（Pithoragarh市）进行讲解。 * 提供所有使用过的数据供学员实践。 * 注重操作技巧和效率提升。 **推荐人群：** 地理信息科学、环境科学、地质学、土木工程等相关专业的学生及研究人员，以及对滑坡风险评估感兴趣的从业人员。
Hello,The weights and effects of 10 different layers were calculated for the landslide risk analysis with the AHP multiple decision making method. The use of Geographic Information Systems (GIS) in risk analysis studies is increasing day by day. Geographic Information Systems are used to collect, process and analyze existing data in order to identify potential risk areas. In this study, landslide susceptibility areas of the city of Pithoragarh were determined by GIS techniques. In the modeling phase, the Weighted Overlay Analysis method was applied and digital maps such as elevation, slope, aspect, curvature shape, precipitation, NDVI Analysis, Land Use, Relative Relief, distance to stream, distance to highway maps were used. All these maps were superimposed by processing the degrees of gravity, and as a result, the (risky) areas in the region that would be affected by the landslide were obtained.You will learn from where and how the data to be used in the analysis is downloaded, what geographical processes it goes through and how it is prepared for analysis. Raster and vector data how to be prepared one by one, projection conversion operations, adding fields and the shortcuts that will speed up your process when converting from raster to vector and from vector to raster will be especially useful for you. Based on this study, it has been prepared as a resource for you to do a similar study about any part of the world. By sharing the data I used throughout the study with you, I allow you to practice.
