1. GSHHS 홈페이지 https://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html Shoreline/Coastline Databases | NCEI Shoreline / Coastline Resources Global Self-consistent, Hierarchical, High-resolution Geography Database (GSHHG) is a high-resolution geography data set, amalgamated from two databases: World Vector Shorelines (WVS) and CIA World Data Bank II (WDBII). The www.ngdc.noaa.gov 2. 표시된 부분 클릭 3. 표지된 z..