UTM中央经线的长度比为()。A:0.9996B:0.9998C:1D:0.9994
UTM中央经线的长度比为()。
A:0.9996
B:0.9998
C:1
D:0.9994
B:0.9998
C:1
D:0.9994
参考解析
解析:UTM为通用横轴墨卡托投影,它改善了高斯一克吕格投影的低纬度地区变形,使得在纬度为0°、经差3°处的最大长度变形小于±0.001,于是中央经线的长度变形为-0.0004,即中央经线长度比为0.9996。故选A。
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