IEDA: Marine Geoscience Data System

Antarctic & Southern Ocean Data Portal

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R/V Laurence M. Gould

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The Antarctic and Southern Ocean Data Portal, part of the NSF Antarctic & Arctic Data Consortium, provides access to geoscience data, primarily marine, from the Antarctic region. The synthesis began in 2003 as the Antarctic Multibeam Bathymetry and Geophysical Data Synthesis (AMBS) with a focus on multibeam bathymetry field data and other geophysical data from the Southern Ocean collected with the R/V N. B. Palmer. In 2005, the effort was expanded to include all routine underway geophysical and oceanographic data collected with both the R/V N. B. Palmer and R/V L. Gould, the two primary research vessels serving the US Antarctic Program.

Data available through the Antarctic and Southern Ocean Data Portal include seafloor bathymetry, subbottom profiling, trackline gravity and magnetics, meteorological, and water column data as well as basic cruise information for all Palmer and Gould expeditions. Seafloor bathymetry data are provided both as raw swath data as well as in gridded form through the Global Multi-Resolution Topography (GMRT) synthesis. This gridded compilation of seafloor bathymetry data can be accessed through GeoMapApp, Create Maps and Grids and through an OGC-compliant Web Map Service. GeoMapApp is an integrated mapping application that provides access to many additional regional bathymetric grids, seismic, radar, gravity and magnetics profiles as well as other map and grid compilations for the Antarctic continent including LIMA. This effort is supported by the Office of Polar Programs at the National Science Foundation.

The US Antarctic Program Data Coordination Center (USAP-DCC) is now hosted as part of the MGDS to help scientists find Antarctic scientific data of interest and to submit their data for curation and long term preservation in accordance with their obligations under the NSF Office of Polar Programs Guidelines for Scientific Data. Visit the USAP Data Center for more information.