IEDA: Marine Geoscience Data System

About MGDS

The Marine Geoscience Data System (MGDS) is a digital data repository and metadata catalog that provides free public access to marine geoscience data acquired throughout the global oceans. The data system currently provides direct web-based access to 38.5TB of data, corresponding to over 560,000 digital data files from more than 2,482 research programs dating back to the 1970’s. MGDS is operated as part of the IEDA Data Facility.

The MGDS data repository and metadata catalog is powered by a relational database, which can be queried through web-based keyword and map searches, and is accessible through web services that follow the specifications of the Open Geospatial Consortium (OGC). MGDS also provides community Data Portals for the NSF-supported Ridge 2000, MARGINS, and GeoPRISMS programs, the Antarctic and Southern Ocean Data Synthesis, the Global Multi-Resolution Topography Synthesis, and Seismic Reflection Field Data Portal. In addition, MGDS also hosts the US Antarctic Program Data Coordination Center (USAP-DCC) which provides tools to help scientists find Antarctic data of interest and satisfy their obligation to share data under the NSF Office of Polar Programs (OPP) data policy.

GeoMapApp, a standalone data visualization and analysis tool developed by the MGDS, permits dynamic data exploration from a map interface and the capability to generate and download custom grids and maps and other data. Through GeoMapApp, users can access data hosted at the MGDS, at other data repositories, and import their own data sets.

Our Global Multi-Resolution Topography (GMRT) is a continuously-updated compilation of seafloor bathymetry integrated with global land topography. Swath bathymetry data acquired with ships throughout the global oceans are cleaned, quality assured and curated by the MGDS Team for inclusion in GMRT. It can be used to create custom maps and grids and it can be accessed through several standard programmatic interfaces including GeoMapApp and Google Earth. The GMRT compilation can also be explored in 3D using Virtual Ocean.

The MGDS MediaBank contains high quality images, illustrations, animations and video clips that are organized into galleries. Media can be sorted by category, and keyword and map-based search options are provided. Each item in the MediaBank is accompanied by metadata that provides access to our cruise catalog and data repository.