{
    "id": 3455,
    "url": "https://svs.gsfc.nasa.gov/3455/",
    "page_type": "Visualization",
    "title": "Nadir View of Change in Elevation over Greenland with  a Blue/Yellow Color Scale",
    "description": "Changes in the Greenland and Antarctic ice sheets are critical in quantifying forecasts for sea level rise. Since its launch in January 2003, the ICESat elevation satellite has been measuring the change in thickness of these ice sheets. This image of Greenland shows the changes in elevation over the Greenland ice sheet between 2003 and 2006. Gray areas indicate no change in elevation. The white regions indicate a slight thickening, while the blue and purple shades indicate a thinning of the ice sheet. || ",
    "release_date": "2007-09-17T00:00:00-04:00",
    "update_date": "2023-05-03T13:55:34.745426-04:00",
    "main_image": {
        "id": 507406,
        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/fullGreenlandElevChg.8188.jpg",
        "filename": "fullGreenlandElevChg.8188.jpg",
        "media_type": "Image",
        "alt_text": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
        "width": 1280,
        "height": 720,
        "pixels": 921600
    },
    "main_video": {
        "id": 2,
        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a001700/a001703/4559_Kepler_Neptune_Twitter_720.mp4",
        "filename": "4559_Kepler_Neptune_Twitter_720.mp4",
        "media_type": "Movie",
        "alt_text": "",
        "width": 1280,
        "height": 720,
        "pixels": 921600
    },
    "main_credits": {
        "Visualizations by": [
            {
                "name": "Cindy Starr",
                "employer": "Global Science and Technology, Inc."
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
        {
            "id": 356888,
            "url": "https://svs.gsfc.nasa.gov/3455/#media_group_356888",
            "widget": "Basic text with HTML",
            "title": "",
            "caption": "",
            "description": "Changes in the Greenland and Antarctic ice sheets are critical in quantifying forecasts for sea level rise. Since its launch in January 2003, the ICESat elevation satellite has been measuring the change in thickness of these ice sheets. This image of Greenland shows the changes in elevation over the Greenland ice sheet between 2003 and 2006. Gray areas indicate no change in elevation. The white regions indicate a slight thickening, while the blue and purple shades indicate a thinning of the ice sheet.",
            "items": [],
            "extra_data": {}
        },
        {
            "id": 356889,
            "url": "https://svs.gsfc.nasa.gov/3455/#media_group_356889",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
            "items": [
                {
                    "id": 352516,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 507406,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/fullGreenlandElevChg.8188.jpg",
                        "filename": "fullGreenlandElevChg.8188.jpg",
                        "media_type": "Image",
                        "alt_text": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 352513,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 507403,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/fullGreenlandElevChg.8188_web.png",
                        "filename": "fullGreenlandElevChg.8188_web.png",
                        "media_type": "Image",
                        "alt_text": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 352514,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 507404,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/fullGreenlandElevChg.8188_thm.png",
                        "filename": "fullGreenlandElevChg.8188_thm.png",
                        "media_type": "Image",
                        "alt_text": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
                        "width": 80,
                        "height": 40,
                        "pixels": 3200
                    }
                },
                {
                    "id": 352512,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 507402,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/fullGreenlandElevChg.8188.tif",
                        "filename": "fullGreenlandElevChg.8188.tif",
                        "media_type": "Image",
                        "alt_text": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 352515,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 507405,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/fullGreenlandElevChg_PrintRes.8188.tif",
                        "filename": "fullGreenlandElevChg_PrintRes.8188.tif",
                        "media_type": "Image",
                        "alt_text": "This image portrays changes in the elevation over the Greenland ice sheet onto topography of Greenland measured by ICESat.",
                        "width": 2560,
                        "height": 1920,
                        "pixels": 4915200
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 356890,
            "url": "https://svs.gsfc.nasa.gov/3455/#media_group_356890",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "This color bar represents the changes in elevation measured over Greenland. A  white color indicates a slight  thickening and blue colors indicate thinning. Areas of no change are shown in gray.",
            "items": [
                {
                    "id": 352517,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 507407,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003400/a003455/ElevChangeColorBar.png",
                        "filename": "ElevChangeColorBar.png",
                        "media_type": "Image",
                        "alt_text": "This color bar represents the changes in elevation measured over Greenland. A  white color indicates a slight  thickening and blue colors indicate thinning. Areas of no change are shown in gray.",
                        "width": 320,
                        "height": 90,
                        "pixels": 28800
                    }
                }
            ],
            "extra_data": {}
        }
    ],
    "studio": "svs",
    "funding_sources": [
        "ESE"
    ],
    "credits": [
        {
            "role": "Visualizer",
            "people": [
                {
                    "name": "Cindy Starr",
                    "employer": "Global Science and Technology, Inc."
                }
            ]
        },
        {
            "role": "Animator",
            "people": [
                {
                    "name": "Helen-Nicole Kostis",
                    "employer": "UMBC"
                }
            ]
        },
        {
            "role": "Scientist",
            "people": [
                {
                    "name": "Jay Zwally",
                    "employer": "NASA/GSFC"
                },
                {
                    "name": "Waleed Abdalati",
                    "employer": "NASA/GSFC"
                }
            ]
        }
    ],
    "missions": [
        "Ice, Cloud, and land Elevation Satellite (ICESat)"
    ],
    "series": [],
    "tapes": [],
    "papers": [],
    "datasets": [
        {
            "name": "",
            "common_name": "",
            "platform": "ICESat",
            "sensor": "GLAS",
            "type": "Other",
            "organizations": [],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": null
        }
    ],
    "nasa_science_categories": [
        "Earth"
    ],
    "keywords": [
        "Atmosphere",
        "Cryology",
        "Cryosphere",
        "Earth Science",
        "Glacier Elevation/Ice Sheet Elevation",
        "Glacier Thickness/Ice Sheet Thickness",
        "Glaciers/Ice Sheets",
        "Hydrosphere",
        "Ice Sheets",
        "precipitation",
        "snow",
        "Snow/Ice"
    ],
    "recommended_pages": [],
    "related": [],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}