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A color bar indicates the sea ice surface temperature values. The satellite instruments are unable to collect data through darkness. The region in polar darkness is shown as a gray cap over the pole that grows and shrinks seasonally. A date slider indicates the progression of time. SeaWiFS Land Reflectance shows the seasonal changes in land cover. || ", "release_date": "2004-09-25T12:00:00-04:00", "update_date": "2023-05-03T13:56:33.513670-04:00", "main_image": { "id": 518048, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002985/SnowIceAsiaStill.19698_web.jpg", "filename": "SnowIceAsiaStill.19698_web.jpg", "media_type": "Image", "alt_text": "This image shows the snow cover and sea ice surface\ntemperature over Europe on March 12, 2003", "width": 320, "height": 240, "pixels": 76800 }, "main_video": { "id": 518040, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a002900/a002985/AsiaSnowIceV2_multiplexed.mpg", "filename": "AsiaSnowIceV2_multiplexed.mpg", "media_type": "Movie", "alt_text": "This animation shows the daily advance and retreat of snow cover, and sea ice surface temperature over Asia during the winter of 2002-2003.", "width": 1280, "height": 720, "pixels": 921600 }, "progress": "Complete", "media_groups": [ { "id": 360019, "url": "https://svs.gsfc.nasa.gov/2985/#media_group_360019", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over Asia from September 2002 through May 2003. 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