1998-2017年中国萨尔温江流域5公里水资源时空分布数据集

本数据是基于气象观测数据、水文站点数据，结合各种同化数据和遥感数据，通过耦合积雪、冰川和冻土物理过程的青藏高原多圈层水文模型系统WEB-DHM（基于水和能量平衡的分布式水文模型）制备生成，时间分辨率为月尺度，空间分辨率为5km，原始数据格式为ASCII文本格式，数据种类包括格网径流与蒸发（若蒸发小于0, 则表示凝华；若径流小于0，则表示当月降水小于蒸发）。若asc无法在arcmap中正常打开，请将asc文件前5行顶格。

This dataset is generated based on meteorological observation data, hydrological station data, as well as various assimilation data and remote sensing data, using the Qinghai-Tibet Plateau multi-sphere hydrological modeling system WEB-DHM (Distributed Hydrological Model based on water and energy balance) which couples the physical processes of snow cover, glaciers and frozen soil. It has a temporal resolution of monthly scale, a spatial resolution of 5 km, and the original data format is ASCII text format. The data categories include grid-based runoff and evaporation: if evaporation is less than 0, it indicates sublimation; if runoff is less than 0, it means that monthly precipitation is less than evaporation. If the .asc files fail to open properly in ArcMap, please align the first 5 lines of each .asc file to the left margin.

搜集汇总

背景与挑战

背景概述

该数据集提供了1998年至2017年中国萨尔温江流域月尺度、5公里空间分辨率的水资源时空分布数据，包括径流与蒸发变量。数据基于多源观测和遥感数据，通过青藏高原多圈层水文模型系统WEB-DHM模拟生成，以ASCII文本格式存储，适用于水资源管理和气候变化研究。