Snap Raster used to create interpolated digital elevation models (DEMs) in the nearshore around Ship, Horn, and Petit Bois Islands, Mississippi: 1916 to 1920, 2008 to 2009 and 2016

To characterize coastal change, historical maps and complementary records were compiled including: topographic sheets (T-sheets), hydrographic sheets (H-sheets,...为表征海岸变化特征，研究人员汇编了历史地图及补充记录，其中涵盖地形图图幅（T-sheets）、海图图幅（H-sheets……）