{
    "id": 4348,
    "url": "https://svs.gsfc.nasa.gov/4348/",
    "page_type": "Visualization",
    "title": "Operation IceBridge Tracks over the Helheim Glacier in Greenland",
    "description": "Composited version of Helheim OIB tracks visualization || comp_1080.2880_print.jpg (1024x576) [40.5 KB] || helheim_tracks_1920x1080_30fps.mp4 (1920x1080) [12.9 MB] || helheim_tracks_1920x1080_60fps.mp4 (1920x1080) [13.5 MB] || 1920x1080_16x9_60p (1920x1080) [0 Item(s)] || helheim_tracks_1920x1080_60fps.webm (1920x1080) [3.2 MB] || helheim_tracks_640x320_30fps.m4v (640x360) [3.6 MB] || comp (3840x2160) [0 Item(s)] || helheim_tracks_1920x1080_30fps.mp4.hwshow [196 bytes] || ",
    "release_date": "2016-08-31T00:00:00-04:00",
    "update_date": "2025-01-05T22:47:22.885369-05:00",
    "main_image": {
        "id": 440813,
        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/multi_lines_labeled_print.jpg",
        "filename": "multi_lines_labeled_print.jpg",
        "media_type": "Image",
        "alt_text": "OIB track layers from 1997 to 2015 arranged next to each other",
        "width": 1024,
        "height": 576,
        "pixels": 589824
    },
    "main_video": null,
    "main_credits": {
        "Visualizations by": [
            {
                "name": "Greg Shirah",
                "employer": "NASA/GSFC"
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
        {
            "id": 332924,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332924",
            "widget": "Video player",
            "title": "",
            "caption": "",
            "description": "Composited version of Helheim OIB tracks visualization",
            "items": [
                {
                    "id": 266291,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440807,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/comp_1080.2880_print.jpg",
                        "filename": "comp_1080.2880_print.jpg",
                        "media_type": "Image",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266286,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440806,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/helheim_tracks_1920x1080_30fps.mp4",
                        "filename": "helheim_tracks_1920x1080_30fps.mp4",
                        "media_type": "Movie",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 1920,
                        "height": 1080,
                        "pixels": 2073600
                    }
                },
                {
                    "id": 266287,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440804,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/helheim_tracks_1920x1080_60fps.mp4",
                        "filename": "helheim_tracks_1920x1080_60fps.mp4",
                        "media_type": "Movie",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 1920,
                        "height": 1080,
                        "pixels": 2073600
                    }
                },
                {
                    "id": 266289,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440803,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/1920x1080_16x9_60p/",
                        "filename": "1920x1080_16x9_60p",
                        "media_type": "Frames",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 1920,
                        "height": 1080,
                        "pixels": 2073600
                    }
                },
                {
                    "id": 266292,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440809,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/helheim_tracks_1920x1080_60fps.webm",
                        "filename": "helheim_tracks_1920x1080_60fps.webm",
                        "media_type": "Movie",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 1920,
                        "height": 1080,
                        "pixels": 2073600
                    }
                },
                {
                    "id": 266288,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440805,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/helheim_tracks_640x320_30fps.m4v",
                        "filename": "helheim_tracks_640x320_30fps.m4v",
                        "media_type": "Movie",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 640,
                        "height": 360,
                        "pixels": 230400
                    }
                },
                {
                    "id": 266290,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440808,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/comp/",
                        "filename": "comp",
                        "media_type": "Frames",
                        "alt_text": "Composited version of Helheim OIB tracks visualization",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                },
                {
                    "id": 439117,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 1100782,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/helheim_tracks_1920x1080_30fps.mp4.hwshow",
                        "filename": "helheim_tracks_1920x1080_30fps.mp4.hwshow",
                        "media_type": "HyperwallShow",
                        "alt_text": "",
                        "width": 0,
                        "height": 0,
                        "pixels": null
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332923,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332923",
            "widget": "Basic text with HTML",
            "title": "",
            "caption": "",
            "description": "Operation Ice Bridge (OIB) has been flying annual airborne missions over the Helheim Glacier in Greenland since 1997.  These missions record the elevation of the glacier along a long, thin track near the middle of the glacier.  This record of heights helps scientists see how the glacier has changed over the years.<br><br>This visualization shows OIB tracks from each year in sequence.  The camera then moves to the side to compare the ice profiles on a graph.  The track profiles are shown to scale (i.e., no exaggeration) until they are compared on the graph where they are exaggerated 10 times to help see the changes.<br><br>The initial camera for this animation matches the end of <a href=\"/4328\">the Helheim visualization (#4348)</a>.<br><br>Image layers are included for each track and the graph for those wishing to create different composites.",
            "items": [],
            "extra_data": {}
        },
        {
            "id": 332925,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332925",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "OIB track layers from 1997 to 2015 arranged next to each other",
            "items": [
                {
                    "id": 266293,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440812,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/multi_lines_labeled.png",
                        "filename": "multi_lines_labeled.png",
                        "media_type": "Image",
                        "alt_text": "OIB track layers from 1997 to 2015 arranged next to each other",
                        "width": 1920,
                        "height": 1080,
                        "pixels": 2073600
                    }
                },
                {
                    "id": 266294,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440813,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/multi_lines_labeled_print.jpg",
                        "filename": "multi_lines_labeled_print.jpg",
                        "media_type": "Image",
                        "alt_text": "OIB track layers from 1997 to 2015 arranged next to each other",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266295,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440811,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/multi_lines_labeled_print_searchweb.png",
                        "filename": "multi_lines_labeled_print_searchweb.png",
                        "media_type": "Image",
                        "alt_text": "OIB track layers from 1997 to 2015 arranged next to each other",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 266296,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440810,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/multi_lines_labeled_print_thm.png",
                        "filename": "multi_lines_labeled_print_thm.png",
                        "media_type": "Image",
                        "alt_text": "OIB track layers from 1997 to 2015 arranged next to each other",
                        "width": 80,
                        "height": 40,
                        "pixels": 3200
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332926,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332926",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "1997 OIB track layer",
            "items": [
                {
                    "id": 266297,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440814,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg1997_01_2200_print.jpg",
                        "filename": "final_helheim_fg1997_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "1997 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266298,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440815,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg1997_01/",
                        "filename": "final_helheim_fg1997_01",
                        "media_type": "Frames",
                        "alt_text": "1997 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332927,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332927",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "1998 OIB track layer",
            "items": [
                {
                    "id": 266299,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440816,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg1998_01_2200_print.jpg",
                        "filename": "final_helheim_fg1998_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "1998 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266300,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440817,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg1998_01/",
                        "filename": "final_helheim_fg1998_01",
                        "media_type": "Frames",
                        "alt_text": "1998 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332928,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332928",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2001 OIB track layer",
            "items": [
                {
                    "id": 266301,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440818,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2001_01_2200_print.jpg",
                        "filename": "final_helheim_fg2001_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2001 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266302,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440819,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2001_01/",
                        "filename": "final_helheim_fg2001_01",
                        "media_type": "Frames",
                        "alt_text": "2001 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332929,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332929",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2003 OIB track layer",
            "items": [
                {
                    "id": 266303,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440821,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2003_01_2200_print.jpg",
                        "filename": "final_helheim_fg2003_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2003 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266304,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440820,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2003_01/",
                        "filename": "final_helheim_fg2003_01",
                        "media_type": "Frames",
                        "alt_text": "2003 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332930,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332930",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2005 OIB track layer",
            "items": [
                {
                    "id": 266305,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440823,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2005_01_2200_print.jpg",
                        "filename": "final_helheim_fg2005_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2005 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266306,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440822,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2005_01/",
                        "filename": "final_helheim_fg2005_01",
                        "media_type": "Frames",
                        "alt_text": "2005 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332931,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332931",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2006 OIB track layer",
            "items": [
                {
                    "id": 266307,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440825,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2006_01_2200_print.jpg",
                        "filename": "final_helheim_fg2006_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2006 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266308,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440824,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2006_01/",
                        "filename": "final_helheim_fg2006_01",
                        "media_type": "Frames",
                        "alt_text": "2006 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332932,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332932",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2007 OIB track layer",
            "items": [
                {
                    "id": 266309,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440826,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2007_01_2200_print.jpg",
                        "filename": "final_helheim_fg2007_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2007 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266310,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440827,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2007_01/",
                        "filename": "final_helheim_fg2007_01",
                        "media_type": "Frames",
                        "alt_text": "2007 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332933,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332933",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2008 OIB track layer",
            "items": [
                {
                    "id": 266311,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440829,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2008_01_2200_print.jpg",
                        "filename": "final_helheim_fg2008_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2008 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266312,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440828,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2008_01/",
                        "filename": "final_helheim_fg2008_01",
                        "media_type": "Frames",
                        "alt_text": "2008 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332934,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332934",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2009 OIB track layer",
            "items": [
                {
                    "id": 266313,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440831,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2009_01_2200_print.jpg",
                        "filename": "final_helheim_fg2009_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2009 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266314,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440830,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2009_01/",
                        "filename": "final_helheim_fg2009_01",
                        "media_type": "Frames",
                        "alt_text": "2009 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332935,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332935",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2010 OIB track layer",
            "items": [
                {
                    "id": 266315,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440833,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2010_01_2200_print.jpg",
                        "filename": "final_helheim_fg2010_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2010 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266316,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440832,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2010_01/",
                        "filename": "final_helheim_fg2010_01",
                        "media_type": "Frames",
                        "alt_text": "2010 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332936,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332936",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2011 OIB track layer",
            "items": [
                {
                    "id": 266317,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440835,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2011_01_2200_print.jpg",
                        "filename": "final_helheim_fg2011_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2011 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266318,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440834,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2011_01/",
                        "filename": "final_helheim_fg2011_01",
                        "media_type": "Frames",
                        "alt_text": "2011 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332937,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332937",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2012 OIB track layer",
            "items": [
                {
                    "id": 266319,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440837,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2012_01_2200_print.jpg",
                        "filename": "final_helheim_fg2012_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2012 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266320,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440836,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2012_01/",
                        "filename": "final_helheim_fg2012_01",
                        "media_type": "Frames",
                        "alt_text": "2012 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332938,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332938",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2013 OIB track layer",
            "items": [
                {
                    "id": 266321,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440838,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2013_01_2200_print.jpg",
                        "filename": "final_helheim_fg2013_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2013 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266322,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440839,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2013_01/",
                        "filename": "final_helheim_fg2013_01",
                        "media_type": "Frames",
                        "alt_text": "2013 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332939,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332939",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2016 OIB track layer",
            "items": [
                {
                    "id": 266323,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440841,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2014_01_2200_print.jpg",
                        "filename": "final_helheim_fg2014_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2016 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266324,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440840,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2014_01/",
                        "filename": "final_helheim_fg2014_01",
                        "media_type": "Frames",
                        "alt_text": "2016 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332940,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332940",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "2015 OIB track layer",
            "items": [
                {
                    "id": 266325,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440843,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_fg2015_01_2200_print.jpg",
                        "filename": "final_helheim_fg2015_01_2200_print.jpg",
                        "media_type": "Image",
                        "alt_text": "2015 OIB track layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266326,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440842,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_fg2015_01/",
                        "filename": "final_helheim_fg2015_01",
                        "media_type": "Frames",
                        "alt_text": "2015 OIB track layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332941,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332941",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "Helheim Radarsat background layer",
            "items": [
                {
                    "id": 266327,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440845,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_bg01_2000_print.jpg",
                        "filename": "final_helheim_bg01_2000_print.jpg",
                        "media_type": "Image",
                        "alt_text": "Helheim Radarsat background layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266328,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440844,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_bg01/",
                        "filename": "final_helheim_bg01",
                        "media_type": "Frames",
                        "alt_text": "Helheim Radarsat background layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332942,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332942",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "x-axis layer",
            "items": [
                {
                    "id": 266329,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440847,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_x-axis_2600_print.jpg",
                        "filename": "final_helheim_x-axis_2600_print.jpg",
                        "media_type": "Image",
                        "alt_text": "x-axis layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266330,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440846,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_x-axis/",
                        "filename": "final_helheim_x-axis",
                        "media_type": "Frames",
                        "alt_text": "x-axis layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332943,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332943",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "graph layer",
            "items": [
                {
                    "id": 266331,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440849,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_graph_01_2600_print.jpg",
                        "filename": "final_helheim_graph_01_2600_print.jpg",
                        "media_type": "Image",
                        "alt_text": "graph layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266332,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440848,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_graph_01/",
                        "filename": "final_helheim_graph_01",
                        "media_type": "Frames",
                        "alt_text": "graph layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332944,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332944",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "y-axis layer",
            "items": [
                {
                    "id": 266333,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440851,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_y-axis_2600_print.jpg",
                        "filename": "final_helheim_y-axis_2600_print.jpg",
                        "media_type": "Image",
                        "alt_text": "y-axis layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266334,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440850,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_y-axis/",
                        "filename": "final_helheim_y-axis",
                        "media_type": "Frames",
                        "alt_text": "y-axis layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 332945,
            "url": "https://svs.gsfc.nasa.gov/4348/#media_group_332945",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "graph mask layer",
            "items": [
                {
                    "id": 266335,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440853,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/final_helheim_graph_mask_2600_print.jpg",
                        "filename": "final_helheim_graph_mask_2600_print.jpg",
                        "media_type": "Image",
                        "alt_text": "graph mask layer",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 266336,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 440852,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004348/frames/3840x2160_16x9_60p/final_helheim_graph_mask/",
                        "filename": "final_helheim_graph_mask",
                        "media_type": "Frames",
                        "alt_text": "graph mask layer",
                        "width": 3840,
                        "height": 2160,
                        "pixels": 8294400
                    }
                }
            ],
            "extra_data": {}
        }
    ],
    "studio": "svs",
    "funding_sources": [
        "ESE"
    ],
    "credits": [
        {
            "role": "Visualizer",
            "people": [
                {
                    "name": "Greg Shirah",
                    "employer": "NASA/GSFC"
                },
                {
                    "name": "Cindy Starr",
                    "employer": "Global Science and Technology, Inc."
                }
            ]
        },
        {
            "role": "Scientist",
            "people": [
                {
                    "name": "Kyle Krabill",
                    "employer": "Sigma Space Corporation"
                }
            ]
        },
        {
            "role": "Producer",
            "people": [
                {
                    "name": "Jefferson Beck",
                    "employer": "USRA"
                }
            ]
        }
    ],
    "missions": [
        "Operation IceBridge"
    ],
    "series": [
        "Operation IceBridge"
    ],
    "tapes": [],
    "papers": [],
    "datasets": [
        {
            "name": "",
            "common_name": "",
            "platform": "RADARSAT-1",
            "sensor": "SAR",
            "type": "Other",
            "organizations": [],
            "description": "",
            "credit": "Additional credit goes to Canadian Space Agency, RADARSAT International Inc.",
            "url": "",
            "date_range": "2000-2013"
        },
        {
            "name": "Operation Ice Bridge Flight Paths",
            "common_name": "",
            "platform": null,
            "sensor": null,
            "type": "Other",
            "organizations": [],
            "description": "NASA DC-8 Flight Path",
            "credit": "",
            "url": "",
            "date_range": "1997-2015"
        },
        {
            "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": null
        }
    ],
    "nasa_science_categories": [
        "Earth"
    ],
    "keywords": [
        "Cryosphere",
        "Earth Science",
        "Glaciers",
        "Glaciers/Ice Sheets",
        "Greenland",
        "Hyperwall",
        "Location"
    ],
    "recommended_pages": [],
    "related": [
        {
            "id": 4566,
            "url": "https://svs.gsfc.nasa.gov/4566/",
            "page_type": "Visualization",
            "title": "Operation Icebridge Studies Changes in Greenland's Helheim Glacier",
            "description": "Flying down the Helheim Glacier in Greenland as ATM altimetry date is shown - first with data from 1998 then data from 2013 is added || dms20.3800_print.jpg (1024x576) [143.9 KB] || dms20.3800_searchweb.png (180x320) [55.0 KB] || dms20.3800_thm.png (80x40) [3.6 KB] || atm (1920x1080) [0 Item(s)] || atm.webm (1920x1080) [30.8 MB] || atm.mp4 (1920x1080) [274.8 MB] || atm.m4v (640x360) [42.2 MB] || atm.mp4.hwshow [178 bytes] || ",
            "release_date": "2017-07-28T14:00:00-04:00",
            "update_date": "2025-01-05T23:20:42.892600-05:00",
            "main_image": {
                "id": 415410,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004566/dms20.3800_print.jpg",
                "filename": "dms20.3800_print.jpg",
                "media_type": "Image",
                "alt_text": "Flying down the Helheim Glacier in Greenland as ATM altimetry date is shown - first with data from 1998 then data from 2013 is added",
                "width": 1024,
                "height": 576,
                "pixels": 589824
            }
        },
        {
            "id": 11976,
            "url": "https://svs.gsfc.nasa.gov/11976/",
            "page_type": "Produced Video",
            "title": "Sea Level Rise Live Shots",
            "description": "Sea Level Rising Inteview with Tom Wagner || YOUTUBE_HQ_Tom_Wagner_-_Sea_Levels_youtube_hq_print.jpg (1024x576) [128.8 KB] || WEBM_Tom_Wagner_-_Sea_Levels_1.webm (960x540) [82.0 MB] || WMV_Tom_Wagner_-_Sea_Levels_1_HD.wmv (1280x720) [39.7 MB] || APPLE_TV_Tom_Wagner_-_Sea_Levels_1_appletv.m4v (1280x720) [112.3 MB] || APPLE_TV_Tom_Wagner_-_Sea_Levels_1_appletv_subtitles.m4v (1280x720) [112.4 MB] || YOUTUBE_HQ_Tom_Wagner_-_Sea_Levels_1_youtube_hq.mov (1280x720) [369.3 MB] || NASA_TV_Tom_Wagner_-_Sea_Levels_1.mpeg (1280x720) [687.0 MB] || WEBM_Tom_Wagner_-_Sea_Levels.en_US.vtt [4.5 KB] || WEBM_Tom_Wagner_-_Sea_Levels_1.en_US.srt [4.6 KB] || WEBM_Tom_Wagner_-_Sea_Levels_1.en_US.vtt [4.5 KB] || NASA_PODCAST_Tom_Wagner_-_Sea_Levels_1_ipod_sm.mp4 (320x240) [36.7 MB] || Tom_Wagner_-_Sea_Levels_1.mov (1280x720) [2.6 GB] || ",
            "release_date": "2015-08-26T17:00:00-04:00",
            "update_date": "2023-05-03T13:49:26.002906-04:00",
            "main_image": {
                "id": 440608,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011900/a011976/Tom_Wagner.png",
                "filename": "Tom_Wagner.png",
                "media_type": "Image",
                "alt_text": "Interview with NASA's Cyrosphere Program Manager, Dr. Tom Wagner",
                "width": 1469,
                "height": 832,
                "pixels": 1222208
            }
        }
    ],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}