Values of BCCλ calculated for the generalized coastline: the values of l are 493396.463 m, 458071.358 m, 359001.678, and the values of λ are equal to 1km,1.25km, 5km.

The generalized coastlines were the coastlines that were generalized by the SPTBB and WM methods at a threshold of 2500 m.概化海岸线（generalized coastlines）系经SPTBB与WM方法以2500米为阈值进行概化处理后得到的海岸线。