Shapefile of Processed ship-based Navigation Data acquired during the Vema expedition V2906 (1972)

This data set was acquired with a ship-based Navigation system during Vema expedition V2906 conducted in 1972 (Chief Scientist: Dr. John Ladd). These data files are of Shapefile format and include Navigation data and were processed after data collection.本数据集由1972年开展的Vema航次V2906期间搭载的船载导航系统采集所得，本次航次首席科学家为约翰·拉德（John Ladd）博士。本数据集文件采用Shapefile格式，包含导航数据，且所有数据均在采集完成后经过处理。