Ship-based Trackline Geophysical Data (MGD77) acquired during the Maurice Ewing expedition EW9901 (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 EW9901 conducted in 1999 (Chief Scientist: Dr. Deborah Smith). These data files are of MGD77 format and include Singlebeam Bathymetry, Gravity Field, and Magnetic Field data and were processed after data collection. Data were acquired as part of the project(s): Long Term Monitoring of Seismicity at the Mid-Atlantic Ridge Using Autonomous Underwater Hydrophones, and funding was provided by NSF grant(s): OCE98-11575 and OCE98-12237.