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    "title": "Greenland Ice Flow",
    "description": "Greenland looks like a big pile of snow seen from space using a regular camera. But satellite radar interferometry helps us detect the motion of ice beneath the snow. Ice starts flowing from the flanks of topographic divides in the interior of the island, and increases in speed toward the coastline where it is channelized along a set of narrow, powerful outlet glaciers. In the east, these glaciers make their sinuous way through complex terrain at low speed. They form long floating extensions that deform slowly in the cold north. As we move toward sectors of higher snowfall in the northwest and center west, ice flow speeds increase by nearly a factor of 10, with many, smaller glaciers flowing straight down to the coastline at several kilometers per year.This complete description of ice motion was only made possible from the coordinated effort of four space agencies: the Japanese Space Agency, the Canadian Space Agency, the European Space Agency, and NASA's Jet Propulsion Laboratory. The data will help scientists improve their understanding of the dynamics of ice in Greenland and in projecting how the Greenland Ice Sheet will respond to climate change in the decades and centuries to come. || ",
    "release_date": "2012-07-02T00:00:00-04:00",
    "update_date": "2024-10-09T00:02:24.893109-04:00",
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            "description": "Greenland looks like a big pile of snow seen from space using a regular camera. But satellite radar interferometry helps us detect the motion of ice beneath the snow. Ice starts flowing from the flanks of topographic divides in the interior of the island, and increases in speed toward the coastline where it is channelized along a set of narrow, powerful outlet glaciers. In the east, these glaciers make their sinuous way through complex terrain at low speed. They form long floating extensions that deform slowly in the cold north. As we move toward sectors of higher snowfall in the northwest and center west, ice flow speeds increase by nearly a factor of 10, with many, smaller glaciers flowing straight down to the coastline at several kilometers per year.<p><p>This complete description of ice motion was only made possible from the coordinated effort of four space agencies: the Japanese Space Agency, the Canadian Space Agency, the European Space Agency, and NASA's Jet Propulsion Laboratory. The data will help scientists improve their understanding of the dynamics of ice in Greenland and in projecting how the Greenland Ice Sheet will respond to climate change in the decades and centuries to come.",
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                    "employer": "NASA/GSFC"
                },
                {
                    "name": "Greg Shirah",
                    "employer": "NASA/GSFC"
                }
            ]
        },
        {
            "role": "Narrator",
            "people": [
                {
                    "name": "Eric J. Rignot",
                    "employer": "NASA/JPL CalTech"
                }
            ]
        },
        {
            "role": "Producer",
            "people": [
                {
                    "name": "Jefferson Beck",
                    "employer": "USRA"
                },
                {
                    "name": "Alan Buis",
                    "employer": "NASA/JPL CalTech"
                }
            ]
        },
        {
            "role": "Scientist",
            "people": [
                {
                    "name": "Eric J. Rignot",
                    "employer": "NASA/JPL CalTech"
                },
                {
                    "name": "Jeremie Mouginot",
                    "employer": "University of California, Irvine"
                },
                {
                    "name": "Ian Howat",
                    "employer": "Ohio State University"
                },
                {
                    "name": "Ted Scambos",
                    "employer": "NSIDC"
                }
            ]
        },
        {
            "role": "Project support",
            "people": [
                {
                    "name": "Laurence Schuler",
                    "employer": "ADNET Systems, Inc."
                },
                {
                    "name": "Ian Jones",
                    "employer": "ADNET Systems, Inc."
                }
            ]
        }
    ],
    "missions": [
        "Terra"
    ],
    "series": [],
    "tapes": [],
    "papers": [
        "https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2012GL051634",
        "https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2012GL051634"
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            "name": "Blue Marble: Next Generation",
            "common_name": "BMNG",
            "platform": "Terra and Aqua",
            "sensor": "MODIS",
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            "organizations": [],
            "description": "",
            "credit": "The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).",
            "url": "http://earthobservatory.nasa.gov/Newsroom/BlueMarble/",
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        },
        {
            "name": "Greenland Mapping Project (GIMP) Digital Elevation Model",
            "common_name": "GIMP Greenland DEM",
            "platform": null,
            "sensor": null,
            "type": "Data Compilation",
            "organizations": [
                "Courtesy of Ian Howat, OSU"
            ],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": "2003 - 2009"
        },
        {
            "name": "",
            "common_name": "Digital Mosaic of Ice Motion in Greenland",
            "platform": null,
            "sensor": null,
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            "organizations": [
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            "description": "Digital Mosaic of Ice Motion in Greenland from satellite radar interferometry data acquired during the International Polar Year 2008 to 2009 by the Envisat Advanced Synthetic-Aperture Radar (ASAR), the Advanced Land Observation System (ALOS)'s Phase-Array L-band SAR (PALSAR) and the RADARSAT-1 SAR",
            "credit": "",
            "url": "",
            "date_range": null
        },
        {
            "name": "",
            "common_name": "Greenland Ice Sheet Velocity",
            "platform": null,
            "sensor": null,
            "type": "Other",
            "organizations": [
                "JPL"
            ],
            "description": "Assembled from satellite radar interferometry data acquired during the International Polar Year (2008-2009).  The satellites are Envisat Advanced Synthetic-Aperture Radar (ASAR), Advanced Land Observation System's (ALOS) Phase-Array L-band SAR (PALSAR), RADARSAT-1 SAR",
            "credit": "",
            "url": "",
            "date_range": null
        }
    ],
    "nasa_science_categories": [
        "Earth"
    ],
    "keywords": [
        "Cryology",
        "Cryosphere",
        "Earth Science",
        "Glacier Motion/Ice Sheet Motion",
        "Glacier Topography/Ice Sheet Topography",
        "Glaciers/Ice Sheets",
        "Greenland",
        "HDTV",
        "Hydrosphere",
        "Hyperwall",
        "Ice Motion",
        "Ice Sheets",
        "Ice Velocity",
        "Location",
        "Narrated",
        "Presentation",
        "Snow/Ice"
    ],
    "recommended_pages": [],
    "related": [
        {
            "id": 11064,
            "url": "https://svs.gsfc.nasa.gov/11064/",
            "page_type": "Produced Video",
            "title": "Cool Migration",
            "description": "The world's second largest ice sheet seems uniform and motionless from above. But years of satellite measurements compressed into a few seconds illustrate just how fluid Greenland's ice really is. Several space agencies, including NASA, have closely monitored the ice sheet to understand how its dynamics might be influenced by changes to Earth's climate and how such changes could affect sea level rise. With the help of a remote sensing technique called radar interferometry, NASA scientists were able to create the first complete map that shows how Greenland's ice moves from the interior toward outlet glaciers on the coast. The speed and direction of the flows can be seen in the color-coded visualization, where areas shaded blue and purple represent the fastest ice, yellow and pink the slowest. || ",
            "release_date": "2012-08-21T00:00:00-04:00",
            "update_date": "2023-05-03T13:52:50.685875-04:00",
            "main_image": {
                "id": 473223,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011000/a011064/Greenland_flow_truecover_1024x576.jpg",
                "filename": "Greenland_flow_truecover_1024x576.jpg",
                "media_type": "Image",
                "alt_text": "Watch ice journey across Greenland's massive ice sheet.",
                "width": 1024,
                "height": 576,
                "pixels": 589824
            }
        }
    ],
    "sources": [],
    "products": [],
    "newer_versions": [],
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    "alternate_versions": []
}