基于DEM流域河网水系提取和面雨量计算研究——以赣江峡江枢纽流域为例

Research on Water System Extraction and Surface Rainfall Calculation of River Network Based on DEM Basin-Taking XiaJiang Hub Basin of Ganjiang River as An Example

基于DEM高程数据和ArcGIS 10.2工具软件,分析了赣江峡江枢纽流域水系的数据预处理、水系提取和面雨量计算的原理、过程和方法,通过水系的提取确定流域控制范围,为流域降水监测、面雨量计算和预报预警提供科学依据。

Based on DEM elevation data and ArcGIS 10.2 tool software,the principles,processes,and methods of data preprocessing,water system extraction,and surface rainfall calculation in the Ganjiang Xiajiang River Hub watershed were analyzed.By extracting the water system,the control range of the watershed was determined,providing a scientific basis for accurate and precise precipitation monitoring,surface rainfall calculation,and prediction and warning in the watershed.