SUBSAINTES AUV AsterX Bathymetry and backscatter (1m resolution)

Near-bottom multibeam bathymetry acquired at the French Antilles volcanic arc between Les Saintes et Dominica islands. High-resolution bathymetry data (1 m/pixel) were acquired by the autonomous underwater vehicle (AUV) AsterX, deployed during the 2017 Subsaintes cruise (https://doi.org/10.17600/17001000. The dataset consists of dives #394 through #404, after renavigation of the veichile. This dataset includes both grids of individual dives (bathymetry and backscatter, in GRD format), and mosaics combining these dives in 3 larger grids (GEOTIFF). All grids are provided in WGS 84 projection.本数据集为在法属安的列斯火山弧莱桑特群岛与多米尼克岛之间海域获取的近底多波束测深数据。该高分辨率测深数据（分辨率为1米/像素）由自主水下航行器（autonomous underwater vehicle, AUV）AsterX采集，该设备部署于2017年Subsaintes科考航次（数据DOI：https://doi.org/10.17600/17001000）。数据集涵盖经导航重校正后的第394至第404次下潜任务数据，包含两类数据成果：一是单次下潜的格网数据（包含测深与后向散射数据，格式为GRD）；二是将多次下潜数据拼接整合的3幅大尺寸格网镶嵌图（格式为GEOTIFF）。所有格网数据均采用WGS 84坐标系投影。