{
    "id": 5521,
    "url": "https://svs.gsfc.nasa.gov/5521/",
    "page_type": "Visualization",
    "title": "Sea Ice Extent 1978-2025",
    "description": "A graph of sea ice extent from 1978-2025 showing Arctic ice, Antarctic ice, and total sea ice.",
    "release_date": "2025-03-27T09:15:00-04:00",
    "update_date": "2025-04-22T14:25:05.850259-04:00",
    "main_image": {
        "id": 1153728,
        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005521/seaIce_2025.png",
        "filename": "seaIce_2025.png",
        "media_type": "Image",
        "alt_text": "A visualization of global sea ice extent starting in November 1978 1978 and going through March 2025. Arctic sea ice, Antarctic sea ice, and their combined totals are shown.",
        "width": 2048,
        "height": 2048,
        "pixels": 4194304
    },
    "main_video": {
        "id": 1153727,
        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005521/seaIce_2025.mp4",
        "filename": "seaIce_2025.mp4",
        "media_type": "Movie",
        "alt_text": "A visualization of global sea ice extent starting in November 1978 1978 and going through March 2025. Arctic sea ice, Antarctic sea ice, and their combined totals are shown. The view transitions from a monthly data grid showing seasonal view of all three components to a line graph of just the combined total.",
        "width": 2160,
        "height": 2160,
        "pixels": 4665600
    },
    "main_credits": {
        "Visualizations by": [
            {
                "name": "Mark SubbaRao",
                "employer": "NASA/GSFC"
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
        {
            "id": 377745,
            "url": "https://svs.gsfc.nasa.gov/5521/#media_group_377745",
            "widget": "Video player",
            "title": "",
            "caption": "A chart of global sea ice extent from November 1978 to March 2025.",
            "description": "A visualization of global sea ice extent starting in November 1978 and going through March 2025. Arctic sea ice, Antarctic sea ice, and their combined total are shown. On Febuary 12th 2025 the total sea ice reached a record low of 15.7 million square kilometers.\r\n\r\nData is from the [National Snow and Ice Data Center](https://nsidc.org/home) at the University of Colorado Boulder.",
            "items": [
                {
                    "id": 464210,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": "",
                    "instance": {
                        "id": 1153727,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005521/seaIce_2025.mp4",
                        "filename": "seaIce_2025.mp4",
                        "media_type": "Movie",
                        "alt_text": "A visualization of global sea ice extent starting in November 1978 1978 and going through March 2025. Arctic sea ice, Antarctic sea ice, and their combined totals are shown. The view transitions from a monthly data grid showing seasonal view of all three components to a line graph of just the combined total.",
                        "width": 2160,
                        "height": 2160,
                        "pixels": 4665600
                    }
                },
                {
                    "id": 464634,
                    "type": "media",
                    "extra_data": null,
                    "title": null,
                    "caption": "",
                    "instance": {
                        "id": 1153728,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005521/seaIce_2025.png",
                        "filename": "seaIce_2025.png",
                        "media_type": "Image",
                        "alt_text": "A visualization of global sea ice extent starting in November 1978 1978 and going through March 2025. Arctic sea ice, Antarctic sea ice, and their combined totals are shown.",
                        "width": 2048,
                        "height": 2048,
                        "pixels": 4194304
                    }
                }
            ],
            "extra_data": {}
        }
    ],
    "studio": "svs",
    "funding_sources": [],
    "credits": [
        {
            "role": "Visualizer",
            "people": [
                {
                    "name": "Mark SubbaRao",
                    "employer": "NASA/GSFC"
                }
            ]
        }
    ],
    "missions": [],
    "series": [],
    "tapes": [],
    "papers": [],
    "datasets": [
        {
            "name": "Sea Ice Index",
            "common_name": "Sea Ice Index",
            "platform": "DMSP, DMSP 5D-3/F17, DMSP 5D-3/F18, Nimbus-7",
            "sensor": "SMMR, SSM/I, SSMIS",
            "type": "Observed Data",
            "organizations": [
                "National Snow and Ice Data Center"
            ],
            "description": "The Sea Ice Index provides a quick look at Arctic- and Antarctic-wide changes in sea ice. It is a source for consistent, up-to-date sea ice extent and concentration images, in PNG format, and data values, in GeoTIFF and ASCII text files, from November 1978 to the present. Sea Ice Index images also depict trends and anomalies in ice cover calculated using a 30-year reference period of 1981 through 2010. The images and data are produced in a consistent way that makes the Index time-series appropriate for use when looking at long-term trends in sea ice cover. Both monthly and daily products are available. However, monthly products are better to use for long-term trend analysis because errors in the daily product tend to be averaged out in the monthly product and because day-to-day variations are often the result of short-term weather.",
            "credit": "Data Contributors: Florence Fetterer, Kenneth Knowles, Walter Meier, Matthew Savoie, Ann Windnagel",
            "url": "https://nsidc.org/data/g02135/versions/3#anchor-1",
            "date_range": ""
        }
    ],
    "nasa_science_categories": [],
    "keywords": [
        "Climage Change",
        "Cryosphere",
        "Earth",
        "Sea Ice"
    ],
    "recommended_pages": [],
    "related": [
        {
            "id": 14900,
            "url": "https://svs.gsfc.nasa.gov/14900/",
            "page_type": "Produced Video",
            "title": "Arctic Sea Ice Minimum (2025)",
            "description": "NASA and and the National Snow and Ice Data Center on Septemeber 10th, 2025 announces that the Arctic sea ice has tied for its 10th lowest extent on record, based on nearly five decades of satellite observations. || ",
            "release_date": "2025-09-23T00:00:00-04:00",
            "update_date": "2025-09-17T09:40:19.595260-04:00",
            "main_image": {
                "id": 1158323,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014900/20250915_SEA_ICE_UPDATE_F2025_SVS14900_1280x720_V2_THUMBNAIL.png",
                "filename": "20250915_SEA_ICE_UPDATE_F2025_SVS14900_1280x720_V2_THUMBNAIL.png",
                "media_type": "Image",
                "alt_text": "Arctic Sea Ice Update Fall 2025 Horizontal Version (3840x2160)Universal Production Music: Behind the Scenes Instrumental by Moenks WrighThis video can be freely shared and downloaded. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/images-and-media/Complete transcript available.Watch this video on the NASA.gov Video YouTube channel.",
                "width": 1280,
                "height": 720,
                "pixels": 921600
            }
        },
        {
            "id": 14813,
            "url": "https://svs.gsfc.nasa.gov/14813/",
            "page_type": "Produced Video",
            "title": "2025 Arctic Sea Ice Maxiumum",
            "description": "Universal Music Production: “This New Beginning”; ID: UND-63-1 This video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by Pond5.com and is obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.htmlComplete transcript available. || Sea_Ice_Update_2025_Thumbnail.png (1280x720) [1.7 MB] || Sea_Ice_Update_2025_Thumbnail_print.jpg (1024x576) [372.3 KB] || Sea_Ice_Update_2025_Thumbnail_searchweb.png (320x180) [128.7 KB] || Sea_Ice_Update_2025_Thumbnail_thm.png [7.6 KB] || Sea_Ice_Spring_25_Update.mp4 (1920x1080) [331.5 MB] || SeaIceSpring.en_US.srt [2.0 KB] || SeaIceSpring.en_US.vtt [1.9 KB] || ",
            "release_date": "2025-03-27T11:00:00-04:00",
            "update_date": "2025-03-27T09:41:22.485321-04:00",
            "main_image": {
                "id": 1153820,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014813/Sea_Ice_Update_2025_Thumbnail.png",
                "filename": "Sea_Ice_Update_2025_Thumbnail.png",
                "media_type": "Image",
                "alt_text": "Universal Music Production: “This New Beginning”; ID: UND-63-1 This video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by Pond5.com and is obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.htmlComplete transcript available.",
                "width": 1280,
                "height": 720,
                "pixels": 921600
            }
        }
    ],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}