Distances from the vertexes of the buffer boundary (original coastline) to the buffer boundary of the generalized coastlines.
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The generalized coastlines were the coastlines that were generalized by the SPTBB and WM methods at a threshold of 5000 m.
广义海岸线（generalized coastlines）是指以5000米为阈值，采用SPTBB与WM方法进行概化处理后得到的海岸线。
创建时间：
2018-11-01
