Ocean Flows under the Pine Island Glacier, Antarctica

  • Released Thursday, November 5th, 2020
  • Updated Wednesday, November 15th, 2023 at 12:16AM
  • ID: 4871

This visualization shows the ocean currents circulating around the Pine Island Bay and flowing under the Pine Island Glacier.

Glaciers surrounding the Amundsen Sea in Antarctica have been rapidly melting. As glaciers flow out from land to the ocean, large expanses of ice behind their leading edges float on the seawater. The point on a glacier where it first loses contact with land is called the grounding line. Nearly all glacier melt occurs on the underside of the glacier beyond the grounding line, on the section floating on seawater as the warmer ocean currents erode the base of the floating ice.

This visualization shows the ocean currents in the Amundsen Sea derived from the "Estimating the Circulation and Climate of the Ocean" (ECCO) ocean circulation model. The visualization approaches the Pine Island Glacier, dives beneath the water and views the ocean flows circulating beneath the floating ice. The surface of the ice sheet is exaggerated by 4x while the topography below sea level is exaggerated by 15x for the purpose of clarity.

This image shows the ocean currents circulating in the Pine Island Bay.

This image shows the ocean currents circulating in the Pine Island Bay.

This image shows the ocean currents circulating in the water beneath the Pine Island Glacier.

This image shows the ocean currents circulating in the water beneath the Pine Island Glacier.

Credits

Please give credit for this item to:
NASA's Scientific Visualization Studio

Datasets used in this visualization

  • ECCO3 High Resolution Ocean and Sea Ice Model

    ID: 802
    Model NASA/JPL
    See all pages that use this dataset

  • Landsat 8 Mosaic of Amundsen Sea Embayment, Antarctica

    ID: 1098
    Mosaic Collected with OLI

    An image mosaic comprised of 20 LandSat 8 tiles on the Amundsen Sea Embayment, Antarctica

    Credit: Landsat 8 mission

    See all pages that use this dataset

  • BedMachine Antarctica V1

    ID: 1099
    Data Compilation

    A self-consistent dataset of the Antarctic Ice Sheet based on the conservation of mass

    Credit: Morlighem, M., Rignot, E., Binder, T. et al. Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet. Nature Geoscience 13, 132–137 (2020)

    See all pages that use this dataset

  • REMA (Reference Elevation Model of Antarctica - 100m)

    ID: 1110
    Data Compilation The Polar Geospatial Center (PGC)

    High resolution, time-stamped Digital Surface Model (DSM) of Antarctica at 100-meter spatial resolution

    Credit: DEMs provided by the Byrd Polar and Climate Research Center and the Polar Geospatial. Computer time provided through a Blue Waters Innovation Initiative. DEMs produced using data from DigitalGlobe, Inc.

    See all pages that use this dataset

Note: While we identify the data sets used in these visualizations, we do not store any further details, nor the data sets themselves on our site.