IEDA: Marine Geoscience Data System IEDA
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IEDA Data Browser

Explore IEDA's global interdisciplinary data holdings through an interactive map interface. The IEDA Data Browser uses the GMRT Synthesis as a backdrop, and allows you to zoom to areas of interest and search across IEDA systems to discover interdisciplinary research data.

IEDA Investigator Support

MGDS and its partner system EarthChem together provide a suite of services in support of observational solid earth research in the Ocean, Earth, and Polar Sciences.

We make data management easy!

Antarctic Data Resources

The Antarctic & Southern Ocean Data Portal provides access to geoscience data from the Antarctic region, primarily acquired with the R/Vs Nathaniel B. Palmer and Laurence M. Gould.

Search for Antarctic Data

Visualization Tools

Use our desktop apps GeoMapApp and Virtual Ocean to explore, visualize and analyze your own data within the context of hundreds of other earth science data from around the world.

Carry the world in your pocket with our mobile app EarthObserver

GMRT MapTool

Create your own custom maps & grids! GMRT MapTool provides instant access to our GMRT Synthesis, a global multi-resolutional data set which includes seafloor bathymetry data to 100-m resolution where data are available.

Recent Data Contributions

  • Raw Electromagnetic and Magnetotelluric Data from the Mid-Atlantic ridge and the Romanche/Chain fracture zones. View Data
  • Processed Acoustic Backscatter and Swath Bathymetry Data from the Pacific Ocean acquired during R/V Falkor expedition FK170124 (2017). View Data
  • Two-dimensional (2-D) tomographic P-wave velocity structure of the upper crust between the Mid-Atlantic Ridge and the Rio Grande Rise. View Data
  • Navigation files supplemental to tomographic velocity models from Kardell et al. (2019) - MGL1601 / CREST. View Data
  • Mask files supplemental to tomographic velocity models from Kardell et al. (2019) - MGL1601 / CREST. View Data
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Recent Citations

  • Mark et al., 2019, Azimuthal Seismic Anisotropy of 70-Ma Pacific-Plate Upper Mantle, J. Geophys. Res. Solid Earth. doi: 10.1029/2018JB016451.
  • Janiszewski et al., 2019, Amphibious surface-wave phase-velocity measurements of the Cascadia subduction zone. doi: 10.1093/gji/ggz051.
  • Wang et al., 2018, Implications of radiocarbon ages of organic and inorganic carbon in coastal lakes in Florida for establishing a reliable chronology for sediment-based paleoclimate reconstruction, Quat. Res., 1-12. doi: 10.1017/qua.2018.96.
  • Mittal and Delbridge, 2019, Detection of the 2012 Havre submarine eruption plume using Argo floats and its implications for ocean dynamics, Earth and Planetary Science Letters, 511, 105-116. doi: 10.1016/j.epsl.2019.01.035.
  • Medici et al., 2019, Groundwater flow velocities in a fractured carbonate aquifer-type: Implications for contaminant transport, J. of Contaminant Hydrology. doi: 10.1016/j.jconhyd.2019.02.001.
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