DEM网格间距对重力远区地改精度的影响及效果

李忠平, 戴广凯, 张茂辉

The impact and effect of DEM grid spacing on the accuracy of gravity remote topographic correction

LI Zhong-Ping, DAI Guang-Kai, ZHANG Mao-Hui

表2 不同网格间距重力远Ⅰ区地改精度统计

Table 2 Statistical table of terrain correction accuracy in distant I area of gravity with different mesh spacing

节点距 重力远Ⅰ区地改时间 重力远Ⅰ区地改均方误差 25 m×25 m 1.52 h 0.000 360 50 m×50 m 15 min 0.000 360 100 m×100 m 6 min 0.000 385 200 m×200 m 4 min 0.000 408