Community Data Portals - MGDS provides Community Data Portals for several NSF-supported research programs and facilities based on disciplinary and programmatic themes. Each portal provides custom resources and access to comprehensive data collections assembled for each community. Data Portals are available for the GeoPRISMS, MARGINS, and Ridge 2000 research initiatives, the Academic Seismic Portal ASP@LDEO and ASP@UTIG collections supporting marine seismic research, the GMRT synthesis of global bathymetry, a collection of submersible data, and a newly initiated Coastal data collection.