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基于陆面物理过程模型VIC及中国内陆50km×50km分辨率网格,建立了大尺度陆面水文模型框架,生成了网格植被参数库和土壤参数库,完成了740个气象站点降水及温度数据在全国50km×50km格网上的插值。该模型考虑了陆气间的水分和能量平衡,径流机制同时考虑蓄满产流、超渗产流及土壤性质的空间非均匀性。利用所建立的模型框架对处于半干旱区的渭河部分子流域进行分析,结果表明所建模型框架具有一定的合理性和适应性。
Based on the model of terrestrial physical process model VIC and the resolution grid of 50km × 50km inland of China, a large-scale land surface hydrological model framework was established and the grid vegetation parameter database and soil parameter database were generated. The precipitation and temperature of 740 meteorological stations were completed. Interpolation of data over grid of 50km × 50km across the country. The model takes into account the balance between water and energy in the land, and the runoff mechanism takes into account the spatial inhomogeneity of runoff, over-runoff and soil properties. Using the model framework established, the analysis is carried out on some sub-basins of the Weihe River in the semi-arid region. The results show that the proposed model framework has some rationality and adaptability.