横断山地径流深数据集（1970-2000年多年平均）

利用横断山地范围的长江、澜沧江、怒江流域水文资料，统计多年平均径流系数与地形（地形起伏度、坡度）、气候（气温、蒸散量、干燥度）、土地利用、植被参数（植被指数、叶面积指数）之间的相关性，建立径流系数空间模拟多元线性回归方程，模拟得到1km分辨率多年平均径流系数，然后利用“径流量=降水量×径流系数”关系模拟得到多年平均径流量数据。Using hydrological data from the Yangtze River, Lancang River and Nu River basins within the Hengduan Mountains region, this study statistically analyzed the correlations between multi-year average runoff coefficient and topographic factors (topographic relief, slope), climatic factors (air temperature, evapotranspiration, aridity index), land use types, and vegetation parameters (vegetation index, leaf area index). A multiple linear regression equation for spatial simulation of runoff coefficient was established, and the multi-year average runoff coefficient with a spatial resolution of 1 km was obtained through simulation. Finally, multi-year average runoff data were generated via simulation based on the relationship: "Runoff = Precipitation × Runoff Coefficient".

搜集汇总

背景与挑战

背景概述

该数据集提供了横断山地1970-2000年多年平均径流深的1km分辨率模拟数据，基于多元线性回归方法结合地形、气候、土地利用和植被参数计算得出，数据质量可靠，相对误差控制在10%以内。