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。
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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