模型构建器在地质灾害易发性评价中的应用

Application of Model Builder in Susceptibility Assessment of Geological Hazards

地质灾害的发生受到地形地貌、地质构造等因素的影响,在进行易发性评价时通常选择坡向、道路、地层岩性和斜坡结构作为评价因子。以自然斜坡单元为评价单元,借助于ArcGIS平台的模型构建器和Python脚本语言,结合平台自带的多种分析、统计工具,以输出为输入方式构建评价因子模型。从简单模型和模型构建器+Python 2个角度,分析栅格、线型和面状类评价因子的生成与赋值,探索模型构建器在地质灾害易发性评价中的应用,为评价提供一种流程化、自动化的数据处理方式。

The occurrence of geological hazards was affected by landform,geological structure and other factors.Therefore,slope,aspect,road,lithology and slope structure were often used as evaluation factors in the evaluation of susceptibility.With the help of model builder,Python language and tools of ArcGIS,and the way of taking output as input,it constructed several evaluation factor models by using natural slope unit as evaluation unit.Meanwhile,it analyzed the generation and assignment of raster,linear and plane evaluation factors from both simple model and model builder+Python,explored the application of model builder in geological hazard susceptibility assessment in order to provide a processization and automatic data processing method.