{
    "id": 10970,
    "url": "https://svs.gsfc.nasa.gov/10970/",
    "page_type": "Produced Video",
    "title": "Currents Of Change",
    "description": "Warm ocean currents circulating off the coast of Antarctica are indirectly contributing to rising global sea levels. As these twisting flows meander around the continent's frozen edges and beneath the underside of floating ice shelves, they're slowly melting the ice from below. Using surface elevation measurements collected during NASA's ICESat mission, scientists have found that this melting is driving most of Antarctica's recent ice losses—particularly in West Antarctica, where inland glaciers that feed into the ice shelves are draining ice into the ocean at an accelerated rate. The visualization below shows the interaction of modeled ocean currents and Antarctic ice shelves, where red areas represent ice thicker than about 1,800 feet and blue areas represent ice thinner than about 650 feet. Notice how the ice shelves generally become thinner—a rainbow of colors indicates intermediate thicknesses—as they extend farther from land. || ",
    "release_date": "2012-05-03T00:00:00-04:00",
    "update_date": "2023-05-03T13:53:05.566094-04:00",
    "main_image": {
        "id": 476382,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_CoverImage_1024x576.jpg",
        "filename": "CurrentsOfChange_CoverImage_1024x576.jpg",
        "media_type": "Image",
        "alt_text": "When it comes to ice in Antarctica, out of sight is not out of mind.",
        "width": 1024,
        "height": 576,
        "pixels": 589824
    },
    "main_video": {
        "id": 476387,
        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/3948_IceShelveThickness-540-MASTER_high.mp4",
        "filename": "3948_IceShelveThickness-540-MASTER_high.mp4",
        "media_type": "Movie",
        "alt_text": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet.",
        "width": 960,
        "height": 540,
        "pixels": 518400
    },
    "main_credits": {
        "Written by": [
            {
                "name": "Kathryn Hansen",
                "employer": "Wyle Information Systems"
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
        {
            "id": 349334,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349334",
            "widget": "Basic text with HTML",
            "title": "",
            "caption": "",
            "description": "Warm ocean currents circulating off the coast of Antarctica are indirectly contributing to rising global sea levels. As these twisting flows meander around the continent's frozen edges and beneath the underside of floating ice shelves, they're slowly melting the ice from below. Using surface elevation measurements collected during NASA's ICESat mission, scientists have found that this melting is driving most of Antarctica's recent ice losses—particularly in West Antarctica, where inland glaciers that feed into the ice shelves are draining ice into the ocean at an accelerated rate. The visualization below shows the interaction of modeled ocean currents and Antarctic ice shelves, where red areas represent ice thicker than about 1,800 feet and blue areas represent ice thinner than about 650 feet. Notice how the ice shelves generally become thinner—a rainbow of colors indicates intermediate thicknesses—as they extend farther from land.",
            "items": [],
            "extra_data": {}
        },
        {
            "id": 349335,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349335",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "When it comes to ice in Antarctica, out of sight is not out of mind.",
            "items": [
                {
                    "id": 321266,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476382,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_CoverImage_1024x576.jpg",
                        "filename": "CurrentsOfChange_CoverImage_1024x576.jpg",
                        "media_type": "Image",
                        "alt_text": "When it comes to ice in Antarctica, out of sight is not out of mind.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 321267,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476383,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_CoverImage_1280x720.jpg",
                        "filename": "CurrentsOfChange_CoverImage_1280x720.jpg",
                        "media_type": "Image",
                        "alt_text": "When it comes to ice in Antarctica, out of sight is not out of mind.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 321268,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476381,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_CoverImage_1024x576_web.png",
                        "filename": "CurrentsOfChange_CoverImage_1024x576_web.png",
                        "media_type": "Image",
                        "alt_text": "When it comes to ice in Antarctica, out of sight is not out of mind.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                },
                {
                    "id": 321269,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476384,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_CoverImage_1024x576_thm.png",
                        "filename": "CurrentsOfChange_CoverImage_1024x576_thm.png",
                        "media_type": "Image",
                        "alt_text": "When it comes to ice in Antarctica, out of sight is not out of mind.",
                        "width": 80,
                        "height": 40,
                        "pixels": 3200
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 349336,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349336",
            "widget": "Video player",
            "title": "",
            "caption": "",
            "description": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet.",
            "items": [
                {
                    "id": 321270,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476386,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_VidImage_1280x720.jpg",
                        "filename": "CurrentsOfChange_VidImage_1280x720.jpg",
                        "media_type": "Image",
                        "alt_text": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 321271,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476385,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/CurrentsOfChange_VidImage_1024x576.jpg",
                        "filename": "CurrentsOfChange_VidImage_1024x576.jpg",
                        "media_type": "Image",
                        "alt_text": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 321273,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476387,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/3948_IceShelveThickness-540-MASTER_high.mp4",
                        "filename": "3948_IceShelveThickness-540-MASTER_high.mp4",
                        "media_type": "Movie",
                        "alt_text": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet.",
                        "width": 960,
                        "height": 540,
                        "pixels": 518400
                    }
                },
                {
                    "id": 321274,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476389,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/3948_IceShelveThickness-540-MASTER_high.webmhd.webm",
                        "filename": "3948_IceShelveThickness-540-MASTER_high.webmhd.webm",
                        "media_type": "Movie",
                        "alt_text": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet.",
                        "width": 960,
                        "height": 540,
                        "pixels": 518400
                    }
                },
                {
                    "id": 321272,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 854011,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/a010970_iPad_movie_3948_IceShelveThickness-540-MASTER/3948_IceShelveThickness-540-MASTER.m3u8",
                        "filename": "3948_IceShelveThickness-540-MASTER.m3u8",
                        "media_type": "File",
                        "alt_text": "Terrain is exaggerated by a factor of 50 to better differentiate the relatively flat ice shelves from the rest of the ice sheet."
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 349337,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349337",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "The massive Ross Ice Shelf is relatively stable compared to other ice shelves in West Antarctica.",
            "items": [
                {
                    "id": 321275,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476391,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/RossIceShelf_2_1024x576.jpg",
                        "filename": "RossIceShelf_2_1024x576.jpg",
                        "media_type": "Image",
                        "alt_text": "The massive Ross Ice Shelf is relatively stable compared to other ice shelves in West Antarctica.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 321276,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476392,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/RossIceShelf_2_1280x720.jpg",
                        "filename": "RossIceShelf_2_1280x720.jpg",
                        "media_type": "Image",
                        "alt_text": "The massive Ross Ice Shelf is relatively stable compared to other ice shelves in West Antarctica.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 321277,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476390,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/RossIceShelf_2_1024x576_web.png",
                        "filename": "RossIceShelf_2_1024x576_web.png",
                        "media_type": "Image",
                        "alt_text": "The massive Ross Ice Shelf is relatively stable compared to other ice shelves in West Antarctica.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 349338,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349338",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "Warm ocean currents have spurred the rapid thinning of the Pine Island Glacier and Getz ice shelves.",
            "items": [
                {
                    "id": 321278,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476395,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/GetzAndPIG_2_1024x576.jpg",
                        "filename": "GetzAndPIG_2_1024x576.jpg",
                        "media_type": "Image",
                        "alt_text": "Warm ocean currents have spurred the rapid thinning of the Pine Island Glacier and Getz ice shelves.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 321279,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476394,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/GetzAndPIG_2_1280x720.jpg",
                        "filename": "GetzAndPIG_2_1280x720.jpg",
                        "media_type": "Image",
                        "alt_text": "Warm ocean currents have spurred the rapid thinning of the Pine Island Glacier and Getz ice shelves.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 321280,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476393,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/GetzAndPIG_2_1024x576_web.png",
                        "filename": "GetzAndPIG_2_1024x576_web.png",
                        "media_type": "Image",
                        "alt_text": "Warm ocean currents have spurred the rapid thinning of the Pine Island Glacier and Getz ice shelves.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 349339,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349339",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "The Getz Ice Shelf stands 200 feet above the ocean surface and, in places, lies more than 1,000 feet below.",
            "items": [
                {
                    "id": 321281,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476396,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/GetzIceShelf_1024x576.jpg",
                        "filename": "GetzIceShelf_1024x576.jpg",
                        "media_type": "Image",
                        "alt_text": "The Getz Ice Shelf stands 200 feet above the ocean surface and, in places, lies more than 1,000 feet below.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 321282,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476397,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/GetzIceShelf_1920x1080.jpg",
                        "filename": "GetzIceShelf_1920x1080.jpg",
                        "media_type": "Image",
                        "alt_text": "The Getz Ice Shelf stands 200 feet above the ocean surface and, in places, lies more than 1,000 feet below.",
                        "width": 1920,
                        "height": 1080,
                        "pixels": 2073600
                    }
                },
                {
                    "id": 321283,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476398,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/GetzIceShelf_1024x576_web.png",
                        "filename": "GetzIceShelf_1024x576_web.png",
                        "media_type": "Image",
                        "alt_text": "The Getz Ice Shelf stands 200 feet above the ocean surface and, in places, lies more than 1,000 feet below.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 349340,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349340",
            "widget": "Single image",
            "title": "",
            "caption": "",
            "description": "Warm air, not ocean currents, drives the melting of ice shelves located along the Antarctic Peninsula.",
            "items": [
                {
                    "id": 321284,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476400,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/Peninsula_1024x576.jpg",
                        "filename": "Peninsula_1024x576.jpg",
                        "media_type": "Image",
                        "alt_text": "Warm air, not ocean currents, drives the melting of ice shelves located along the Antarctic Peninsula.",
                        "width": 1024,
                        "height": 576,
                        "pixels": 589824
                    }
                },
                {
                    "id": 321285,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476401,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/Peninsula_1280x720.jpg",
                        "filename": "Peninsula_1280x720.jpg",
                        "media_type": "Image",
                        "alt_text": "Warm air, not ocean currents, drives the melting of ice shelves located along the Antarctic Peninsula.",
                        "width": 1280,
                        "height": 720,
                        "pixels": 921600
                    }
                },
                {
                    "id": 321286,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": null,
                    "instance": {
                        "id": 476399,
                        "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010970/Peninsula_1024x576_web.png",
                        "filename": "Peninsula_1024x576_web.png",
                        "media_type": "Image",
                        "alt_text": "Warm air, not ocean currents, drives the melting of ice shelves located along the Antarctic Peninsula.",
                        "width": 320,
                        "height": 180,
                        "pixels": 57600
                    }
                }
            ],
            "extra_data": {}
        },
        {
            "id": 349341,
            "url": "https://svs.gsfc.nasa.gov/10970/#media_group_349341",
            "widget": "Basic text",
            "title": "For More Information",
            "caption": "",
            "description": "See [NASA.gov](http://www.nasa.gov/topics/earth/features/currents-ice-loss.html)",
            "items": [],
            "extra_data": {}
        }
    ],
    "studio": "gms",
    "funding_sources": [
        "PAO"
    ],
    "credits": [
        {
            "role": "Animator",
            "people": [
                {
                    "name": "Trent L. Schindler",
                    "employer": "USRA"
                },
                {
                    "name": "Horace Mitchell",
                    "employer": "NASA/GSFC"
                },
                {
                    "name": "Greg Shirah",
                    "employer": "NASA/GSFC"
                }
            ]
        },
        {
            "role": "Producer",
            "people": [
                {
                    "name": "Patrick Lynch",
                    "employer": "Wyle Information Systems"
                }
            ]
        },
        {
            "role": "Writer",
            "people": [
                {
                    "name": "Kathryn Hansen",
                    "employer": "Wyle Information Systems"
                }
            ]
        }
    ],
    "missions": [],
    "series": [],
    "tapes": [],
    "papers": [],
    "datasets": [],
    "nasa_science_categories": [
        "Earth"
    ],
    "keywords": [
        "App"
    ],
    "recommended_pages": [],
    "related": [
        {
            "id": 3948,
            "url": "https://svs.gsfc.nasa.gov/3948/",
            "page_type": "Visualization",
            "title": "Circulation of Ocean Currents Around the Western Antarctic Ice Shelves",
            "description": "This animation shows the circulation of ocean currents around the western Antarctic ice shelves. The shelves are indicated by the rainbow color; red is thicker (>550m), while blue is thinner (<200m). The ocean flow runs from the surface to 900 m, colored white at the surface and fading to light blue at depth, and is based on the ECCO2 model over a representative two-month period. Bathymetry, topography, and ice thickness were derived from the RTopo-1 dataset of Timmermann, et al. (http://doi.pangaea.de/10.1594/PANGAEA.741917). Ground color is from MODIS/Blue Marble. || ",
            "release_date": "2012-04-25T13:00:00-04:00",
            "update_date": "2023-05-03T13:53:06.354993-04:00",
            "main_image": {
                "id": 476357,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003948/ice_shelves.0001.jpg",
                "filename": "ice_shelves.0001.jpg",
                "media_type": "Image",
                "alt_text": "Animation of circulation around ice shelves of Antarctica.",
                "width": 1280,
                "height": 720,
                "pixels": 921600
            }
        }
    ],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}