Ship-based Trackline Geophysical Data (MGD77) acquired during the Vema expedition V2809 (1971)

This data set was acquired with a ship-based Echosounder Sonar, Gravimeter, and Magnetometer during Vema expedition V2809 conducted in 1971 (Chief Scientist: Dr. Thomas Aitken). These data files are of MGD77 format and include Magnetic Field, Gravity Field, and Singlebeam Bathymetry data and were processed after data collection.本数据集由1971年开展的Vema航次V2809（首席科学家：Thomas Aitken博士）所搭载的船载回声测深声呐（Echosounder Sonar）、重力仪（Gravimeter）与磁力仪（Magnetometer）获取所得。该批数据文件采用MGD77格式，包含磁场、重力场与单波束测深数据，且均在数据采集后完成了处理。