{
    "id": 4138,
    "url": "https://svs.gsfc.nasa.gov/4138/",
    "page_type": "Visualization",
    "title": "Cover Candidate for PNAS:<p>Albedo Decrease Linked to Arctic Sea Ice",
    "description": "These still images were generated to be cover candidates for the Proceedings of the National Academy of Sciences (PNAS).   The images display data from the paper \"Observational determination of albedo decrease caused by vanishing Arctic sea ice\". Average September Arctic sea ice from 1979 is shown on the top globe of each image. Average September Arctic sea ice from 2012 with change in albedo overlaid is shown in the bottom globe of each image. Two images are provided which use different color tables.This is the first study to document Arctic-wide decrease in planetary albedo using satellite radiation budget measurements and sea ice data. The study finds a very strong correlation between sea ice cover and planetary albedo.Here are links to the related NASA press release and the article. || ",
    "release_date": "2014-03-11T08:00:00-04:00",
    "update_date": "2023-05-03T13:51:06.173585-04:00",
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        "alt_text": "Print resolution still:  top globe shows 1979 September sea ice cover; bottom globe shows 2012 September sea ice cover with albedo change overlaid using a red color bar.  Versions are provided with and without labels.",
        "width": 2400,
        "height": 2580,
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    "main_credits": {
        "Visualizations by": [
            {
                "name": "Greg Shirah",
                "employer": "NASA/GSFC"
            }
        ]
    },
    "progress": "Complete",
    "media_groups": [
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            "description": "These still images were generated to be cover candidates for the Proceedings of the National Academy of Sciences (PNAS).   The images display data from the paper \"Observational determination of albedo decrease caused by vanishing Arctic sea ice\". Average September Arctic sea ice from 1979 is shown on the top globe of each image. Average September Arctic sea ice from 2012 with change in albedo overlaid is shown in the bottom globe of each image. Two images are provided which use different color tables.<p><p>This is the first study to document Arctic-wide decrease in planetary albedo using satellite radiation budget measurements and sea ice data. The study finds a very strong correlation between sea ice cover and planetary albedo.<p><hr /><p>Here are links to the related <a href=\"http://www.nasa.gov/content/goddard/nasa-satellites-see-arctic-surface-darkening-faster/\">NASA press release</a> and <a href=\"http://www.pnas.org/content/111/9/3322.abstract\">the article</a>.<p><br />",
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            "description": "Print resolution still:  top globe shows 1979 September sea ice cover; bottom globe shows 2012 September sea ice cover with albedo change overlaid using a red color bar.  Versions are provided with and without labels.",
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            "description": "Red color bar: dark red indicates darker areas (i.e., more absorbent to radiation than in previous years) , lighter reds, orange and into blue indicate no change (i.e., similar to previous years).",
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                    "instance": {
                        "id": 458894,
                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004138/cbar_red.png",
                        "filename": "cbar_red.png",
                        "media_type": "Image",
                        "alt_text": "Red color bar: dark red indicates darker areas (i.e., more absorbent to radiation than in previous years) , lighter reds, orange and into blue indicate no change (i.e., similar to previous years).",
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            "description": "Print resolution still:  top globe shows 1979 September sea ice cover; bottom globe shows 2012 September sea ice cover with albedo change overlaid using a blue color bar.  Versions are provided with and without labels.",
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                        "alt_text": "Print resolution still:  top globe shows 1979 September sea ice cover; bottom globe shows 2012 September sea ice cover with albedo change overlaid using a blue color bar.  Versions are provided with and without labels.",
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                        "alt_text": "Print resolution still:  top globe shows 1979 September sea ice cover; bottom globe shows 2012 September sea ice cover with albedo change overlaid using a blue color bar.  Versions are provided with and without labels.",
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            "description": "Blue color bar: dark blue indicates darker areas (i.e., more absorbent to radiation than in previous years) , lighter blues and into white indicate no change (i.e., similar to previous years).",
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                    "id": 294211,
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                    "instance": {
                        "id": 458900,
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                        "media_type": "Image",
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    "studio": "svs",
    "funding_sources": [
        "ESE"
    ],
    "credits": [
        {
            "role": "Animator",
            "people": [
                {
                    "name": "Greg Shirah",
                    "employer": "NASA/GSFC"
                }
            ]
        },
        {
            "role": "Scientist",
            "people": [
                {
                    "name": "Kristina Pistone",
                    "employer": "Scripps Insitution of Oceanography, UCSD"
                },
                {
                    "name": "Ian Eisenman",
                    "employer": "Scripps Institution for Oceanography, UCSD"
                },
                {
                    "name": "Veerabhadran Ramanathan",
                    "employer": "Scripps Institution of Oceanography"
                }
            ]
        },
        {
            "role": "Project support",
            "people": [
                {
                    "name": "Laurence Schuler",
                    "employer": "ADNET Systems, Inc."
                },
                {
                    "name": "Ian Jones",
                    "employer": "ADNET Systems, Inc."
                }
            ]
        }
    ],
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    "series": [],
    "tapes": [],
    "papers": [
        "<a href=\"http://www.pnas.org/content/111/9/3322.abstract\">http://www.pnas.org/content/111/9/3322.abstract</a>",
        "<a href=\"http://www.pnas.org/content/111/9/3322.abstract\">http://www.pnas.org/content/111/9/3322.abstract</a>"
    ],
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            "name": "Albedo",
            "common_name": "",
            "platform": "Aqua",
            "sensor": "CERES",
            "type": "Other",
            "organizations": [],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": "01/2000  through 09/2012"
        },
        {
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            "common_name": "BMNG",
            "platform": "Terra and Aqua",
            "sensor": "MODIS",
            "type": "Other",
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            "description": "",
            "credit": "The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).",
            "url": "http://earthobservatory.nasa.gov/Newsroom/BlueMarble/",
            "date_range": null
        },
        {
            "name": "Sea Ice Concentration",
            "common_name": "SMMR",
            "platform": "Nimbus-7",
            "sensor": "SMMR",
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            "organizations": [
                "NSIDC"
            ],
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            "credit": "",
            "url": "",
            "date_range": "09/1979 through 07/1987"
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        {
            "name": "Sea Ice Concentration",
            "common_name": "NSIDC SSMI",
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            "sensor": "SSM/I",
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            "organizations": [
                "NSIDC"
            ],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": "08/1987 through 09/2012"
        }
    ],
    "nasa_science_categories": [
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    "keywords": [
        "Albedo",
        "Atmosphere",
        "Atmospheric Radiation",
        "Atmospheric science",
        "Cryology",
        "Cryosphere",
        "Earth Science",
        "Snow/Ice"
    ],
    "recommended_pages": [],
    "related": [],
    "sources": [],
    "products": [],
    "newer_versions": [],
    "older_versions": [],
    "alternate_versions": []
}