Ship-based Trackline Geophysical Data (MGD77) acquired during the Maurice Ewing expedition EW9903 (1999)

This data set was acquired with a ship-based Atlas Hydrosweep DS Multibeam Sonar system, Geometrics G-886 Magnetometer, and BellAerospace BGM-3 Gravimeter during Maurice Ewing expedition EW9903 conducted in 1999 (Chief Scientist: Dr. Alistair Harding). These data files are of MGD77 format and include Gravity Field, Magnetic Field, and Singlebeam Bathymetry data and were processed after data collection. Data were acquired as part of the project(s): Structure of Oceanic Crust Formed at 200 mm/yr. Spreading Rate, and funding was provided by NSF grant(s): OCE98-11948 and OCE98-12612.