{
    "count": 4,
    "next": null,
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    "results": [
        {
            "id": 11540,
            "url": "https://svs.gsfc.nasa.gov/11540/",
            "result_type": "Produced Video",
            "release_date": "2014-06-03T00:00:00-04:00",
            "title": "Unstoppable",
            "description": "Most glaciers in West Antarctica sit on a bed that is below sea level. The massive ice sheet’s exposure to ocean water makes it inherently unstable, a fact that scientists have warned about for decades. In recent years, scientists have observed the glaciers that flow into West Antarctica's Amundsen Sea are shedding ice at a faster rate. Now, new research shows there is nothing to stop these glaciers from being lost to the ocean—an event that will likely take centuries to unfold, but raise global sea level by four feet. Watch the video to learn more. || ",
            "hits": 40
        },
        {
            "id": 4168,
            "url": "https://svs.gsfc.nasa.gov/4168/",
            "result_type": "Visualization",
            "release_date": "2014-05-29T12:00:00-04:00",
            "title": "West Antarctic Collapse",
            "description": "A new study by researchers at NASA and the University of California, Irvine, finds a rapidly melting section of the West Antarctic Ice Sheet appears to be in an irreversible state of decline, with nothing to stop the glaciers in this area from melting into the sea according to glaciologist and lead author Eric Rignot, of UC Irvine and NASA's Jet Propulsion Laboratory in Pasadena, California.Three major lines of evidence point to the glaciers' eventual demise: the changes in their flow speeds, how much of each glacier floats on seawater, and the slope and depth of the terrain they are flowing over.  In a paper in April, Rignot's research group discussed the steadily increasing flow speeds of these glaciers over the past 40 years. This new study examines the other two lines of evidence.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.  The Antarctic glaciers studied have thinned so much they are now floating above places where they used to sit solidly on land, which means their grounding lines are retreating inland.—><!——><!—Above: Move bar to compare the grounding line of the Smith Glacier from 1996 (left) to the location in 2011 (right) which has retreated inland 35 km during this time. The green line indicates the location of the 1996 grounding line.  Download HTML to embed this in your web page.The bedrock topography is another key to the fate of the ice in this basin. All the glacier beds slope deeper below sea level as they extend farther inland. As the glaciers retreat, they cannot escape the reach of the ocean, and the warm water will keep melting them even more rapidly.Below are two edited versions of narrated stories released by JPL to explain this research.  In addition are the two versions of the unedited animations provided to JPL to support the release.  The unedited animations show the region of study by the JPL researchers, identifying by name the glaciers that terminate in the Amundsen Sea. One of the animations includes data showing the velocity of the glaciers in the region, flow vectors showing the movement of the glaciers colored by their velocity and a difference image showing the change in velocity between 1996 and 2008.  The second animation does not include these datasets.  Both versions of the animation draw close to the Smith Glacier and show how the grounding line of this glacier has moved inland 35 kilometers between 1996 and 2011.  As the surface of the ice sheet is peeled away, showing the height and depth of the bedrock topography.   Regions below sea level are shown in shades of brown while areas above sea level are shown in green.  Sea level is shown in yellow. || ",
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        },
        {
            "id": 3849,
            "url": "https://svs.gsfc.nasa.gov/3849/",
            "result_type": "Visualization",
            "release_date": "2011-08-25T00:00:00-04:00",
            "title": "Antarctic Ice Flow Charted From Space",
            "description": "Harsh snows have blanketed Antarctica for so long that the continent has built up an ice sheet a mile thick from bedrock to surface in most places. Despite the ice cap's grip on the rocky landmass below, friction can only hold back the ice so much. A new, first-of-its-kind map from NASA reveals icy Antarctica as a landscape of constant movement. NASA scientists at the Jet Propulsion Laboratory and UC Irvine have charted this movement for the first time, using Canadian, Japanese and European satellite data to create a record of the speed and direction of ice flow across the entire continent. The map reveals glaciers and tributaries in patterned flows stretching hundreds of miles inland, like a system of rivers and creeks. Slow-moving flows found in largely unexplored East Antarctica defied previous understanding of ice migration. And scientists discovered a ridge that splits Antarctica from east to west. Explore the visualizations below to see the new benchmark map scientists can use to study the extent and speed of changes to the largest ice sheet in the world. || ",
            "hits": 321
        },
        {
            "id": 3848,
            "url": "https://svs.gsfc.nasa.gov/3848/",
            "result_type": "Visualization",
            "release_date": "2011-08-18T12:00:00-04:00",
            "title": "NASA Research Leads to First Complete Map of Antarctic Ice Flow",
            "description": "This animation shows the motion of ice in Antarctica as measured by satellite data from CSA, JAXA and ESA processed by a NASA Research Team at UC Irvine. The background image from Landsat (visible imagery) is progressively replaced by a map of ice velocity color coded on a logarithmic scale, with values varying from 1 m/yr (brown to green) to 3,000 m/yr (green to blue and red). The animation does not show where ice is melting but how ice is naturally transported from the interior regions where it accumulates from snowfall to the coastal regions where it is discharged into the ocean as tabular icebergs and ice-shelf melt water. For the purpose of the animation, we are representing hundreds to thousands of years of motion. In the first animation, the dynamic range of the flow has been compressed, with slower flows scaled up in velocity to make visible how the flows feed from the interior of the continent. In the second, the flows speeds are in scale to each other.The result illustrates that zones of enhanced motion take their source far into the interior regions of Antarctica, at the foothills of the ridges formed by the ice tops of the continent. This pattern of motion has never been observed on that scale before. These observations have vast implications on our understanding of the flow of ice sheets and how they might respond to climate change in the future and contribute to sea level change. || ",
            "hits": 340
        }
    ]
}