The Marine Geoscience Data System (MGDS) serves as a premier data repository dedicated to providing free public access to a wealth of curated marine geophysical data and metadata. Focused on the formation and evolution of the seafloor and sub-seafloor, MGDS facilitates a comprehensive exploration of research data from around the globe. Its extensive offerings include the Academic Seismic Portal, which acts as the primary hub for field and processed data from active source marine seismic experiments carried out by the U.S. academic community. Users can retrieve high-resolution geophysical data from submersibles, collected by esteemed institutions such as the National Deep Submergence Facility and the Schmidt Ocean Institute.

Additionally, MGDS features a variety of data systems previously operated under IEDA, including resources for global bathymetry and data from various marine research expeditions. With a commitment to data management and usability, MGDS empowers researchers and enthusiasts with tools to explore and contribute to the field of marine geoscience.