Through analysis of the sensitive parameter CN of the SCS model, the sensitivity of runoff modeling to DEM resolution is described from the perspective of slope change.
根据SCS模型敏感参数cn，从坡度参数变化角度分析了不同分辨率的DEM对流域径流量影响。
The experimental result shows that simulated astronomic radiation increases gradually with the decrease of DEM resolution.
实验结果显示，随着DEM栅格分辨率的降低，天文辐射逐渐增大；
According to the result, grid size affects the accuracy of derived information, especially in the flat areas. We should choose the DEM with right resolution.
研究表明，DEM的水平分辨率对地形信息的精确性有影响，网格的增大增加了DEM对地形信息的概括，应根据不同的需要选择不同分辨率的DEM。
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