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    "results": [
        {
            "id": 3355,
            "url": "https://svs.gsfc.nasa.gov/3355/",
            "result_type": "Visualization",
            "release_date": "2006-05-20T23:55:00-04:00",
            "title": "A Short Tour of the Cryosphere",
            "description": "A newer version of this animation is available here.This narrated, 5-minute animation shows a wealth of data collected from satellite observations of the cryosphere and the impact that recent cryospheric changes are making on our planet. This is a shorter version of a narrated, 7 1/2 minute animation entitled  'A Tour of the Cryosphere'.See the above link for a detailed description of the full animation.Two sections have been removed from the original animation: one showing a flyby of the South Pole station and glaciers feeding the Ross Ice Shelf and one showing solar data related to the Earth's energy balance.For more information on the data sets used in this visualization, visit NASA's EOS DAAC website. || ",
            "hits": 27
        },
        {
            "id": 3353,
            "url": "https://svs.gsfc.nasa.gov/3353/",
            "result_type": "Visualization",
            "release_date": "2006-04-17T00:00:00-04:00",
            "title": "Terra/Aqua MODIS: Snow Cover and Sea Ice Surface Temperature",
            "description": "This animation shows MODIS daily measurements of both snow cover and sea ice surface temperature in the Northern Hemisphere for the winter of 2002-2003.  MODIS can only take measurements in daylight, so measurements during the polar winter night are taken from the last valid measurement. || ",
            "hits": 14
        },
        {
            "id": 3181,
            "url": "https://svs.gsfc.nasa.gov/3181/",
            "result_type": "Visualization",
            "release_date": "2005-12-04T23:55:00-05:00",
            "title": "A Tour of the Cryosphere",
            "description": "A new HD version of this animation is available here.Click here to go to the media download section.The cryosphere consists of those parts of the Earth's surface where water is found in solid form, including areas of snow, sea ice, glaciers, permafrost, ice sheets, and icebergs. In these regions, surface temperatures remain below freezing for a portion of each year. Since ice and snow exist relatively close to their melting point, they frequently change from solid to liquid and back again due to fluctuations in surface temperature. Although direct measurements of the cryosphere can be difficult to obtain due to the remote locations of many of these areas, using satellite observations scientists monitor changes in the global and regional climate by observing how regions of the Earth's cryosphere shrink and expand.This animation portrays fluctuations in the cryosphere through observations collected from a variety of satellite-based sensors. The animation begins in Antarctica, showing ice thickness ranging from 2.7 to 4.8 kilometers thick along with swaths of polar stratospheric clouds. In a tour of this frozen continent, the animation shows some unique features of the Antarctic landscape found nowhere else on earth. Ice shelves, ice streams, glaciers, and the formation of massive icebergs can be seen. A time series shows the movement of iceberg B15A, an iceberg 295 kilometers in length which broke off of the Ross Ice Shelf in 2000. Moving farther along the coastline, a time series of the Larsen ice shelf shows the collapse of over 3,200 square kilometers ice since January 2002. As we depart from the Antarctic, we see the seasonal change of sea ice and how it nearly doubles the size of the continent during the winter.From Antarctica, the animation travels over South America showing areas of permafrost over this mostly tropical continent. We then move further north to observe daily changes in snow cover over the North American continent. The clouds show winter storms moving across the United States and Canada, leaving trails of snow cover behind. In a close-up view of the western US, we compare the difference in land cover between two years: 2003 when the region received a normal amount of snow and 2002 when little snow was accumulated. The difference in the surrounding vegetation due to the lack of spring melt water from the mountain snow pack is evident.As the animation moves from the western US to the Arctic region, the areas effected by permafrost are visible. In December, we see how the incoming solar radiation primarily heats the Southern Hemisphere. As time marches forward from December to June, the daily snow and sea ice recede as the incoming solar radiation moves northward to warm the Northern Hemisphere.Using satellite swaths that wrap the globe, the animation shows three types of instantaneous measurements of solar radiation observed on June 20, 2003: shortwave (reflected) radiation, longwave (thermal) radiation and net flux (showing areas of heating and cooling). Correlation between reflected radiation and clouds are evident. When the animation fades to show the monthly global average net flux, we see that the polar regions serve to cool the global climate by radiating solar energy back into space throughout the year.The animation shows a one-year cycle of the monthly average Arctic sea ice concentration followed by the mean September minimum sea ice for each year from 1979 through 2004. A red outline indicates the mean sea ice extent for September over 22 years, from 1979 to 2002. The minimum Arctic sea ice animation clearly shows how over the last 5 years the quantity of polar ice has decreased by 10 - 14% from the 22 year average.While moving from the Arctic to Greenland, the animation shows the constant motion of the Arctic polar ice using daily measures of sea ice activity. Sea ice flows from the Arctic into Baffin Bay as the seasonal ice expands southward. As we draw close to the Greenland coast, the animation shows the recent changes in the Jakobshavn glacier. Although Jakobshavn receded only slightly from 1042 to 2001, the animation shows significant recession over the past three years, from 2002 through 2004.This animation shows a wealth of data collected from satellite observations of the cryosphere and the impact that recent cryospheric changes are making on our planet.For more information on the data sets used in this visualization, visit NASA's EOS DAAC website. || ",
            "hits": 107
        },
        {
            "id": 3180,
            "url": "https://svs.gsfc.nasa.gov/3180/",
            "result_type": "Visualization",
            "release_date": "2005-07-31T00:00:00-04:00",
            "title": "MODIS Daily Global Snow Cover and Sea Ice Surface Temperature as seen in the SIGGRAPH 2005 Electronic Theater",
            "description": "This animation showing snow cover and sea ice surface temperature in the Northern Hemisphere portrays data collected from daily MODIS satellite images acquired during the winter of 2002-2003. Darkness increases with the onset of autumn, reaching a maximum at the Winter Solstice on December 21st. Thereafter, the circle of darkness shrinks as the period of daylight increases. Daily changes in sea ice are shown as ice surface temperature, which is related to the air temperature and the concentration of the sea ice. Sea ice surface temperatures range from about -40 to -2 degrees Celsius. Here, ice surface temperatures are depicted by colors, described by a color bar shown below. The snow tracks of several winter storms across the United States can be clearly seen. With an albedo of up to 80 percent or more, snow-covered terrain reflects most of the incoming solar radiation back into space, cooling the lower atmosphere. When snow cover melts, the albedo drops suddenly to less than about 30 percent, allowing the ground to absorb more solar radiation, heating the Earth's surface and lower atmosphere. Rapid changes in albedo, resultingfrom snowfall and snow melt, cause significant changes in the regional energy balance. This animation was accepted into the prestigious 2005 SIGGRAPH Electronic Theater, where it was shown during the annual conference from July 31 through August 4, 2005 in Los Angeles, CA. For more information on the data sets used in this visualization, visit NASA's EOS DAAC website. || ",
            "hits": 23
        },
        {
            "id": 3036,
            "url": "https://svs.gsfc.nasa.gov/3036/",
            "result_type": "Visualization",
            "release_date": "2005-01-12T12:00:00-05:00",
            "title": "Daily Sea Ice Surface Temperature 2002-2003 (WMS)",
            "description": "This animation shows the daily sea ice surface temperature over the northern hemisphere from September 2002 through May 2003. The sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since this instrument cannot take measurements through clouds or in the dark, in dark or cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. The color of the sea ice indicates the sea ice surface temperature. || ",
            "hits": 20
        },
        {
            "id": 3037,
            "url": "https://svs.gsfc.nasa.gov/3037/",
            "result_type": "Visualization",
            "release_date": "2005-01-11T12:00:00-05:00",
            "title": "Sea Ice Surface Temperature with Regions of No Data Indicated (WMS)",
            "description": "This animation shows the daily sea ice surface temperature over the northern hemisphere from September 2002 through May 2003. The sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since this instrument cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. The satellite instruments are also unable to collect data in the dark, so the region around the pole is shown here with a gray cap that grows and shrinks, indicating the region in polar darkness. The color of the sea ice indicates the sea ice surface temperature. || ",
            "hits": 11
        },
        {
            "id": 2981,
            "url": "https://svs.gsfc.nasa.gov/2981/",
            "result_type": "Visualization",
            "release_date": "2004-09-25T12:00:00-04:00",
            "title": "Global Daily Snow and Sea Ice Surface Temperature",
            "description": "This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over the Northern Hemisphere from September 2002 through May 2003. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. This visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than ~50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. 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. || ",
            "hits": 10
        },
        {
            "id": 2982,
            "url": "https://svs.gsfc.nasa.gov/2982/",
            "result_type": "Visualization",
            "release_date": "2004-09-25T12:00:00-04:00",
            "title": "Daily Snow and Sea Ice Temperature over the North Pole",
            "description": "This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over the Northern Hemisphere from September 2002 through May 2003. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. This visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than ~50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. 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. || ",
            "hits": 27
        },
        {
            "id": 2983,
            "url": "https://svs.gsfc.nasa.gov/2983/",
            "result_type": "Visualization",
            "release_date": "2004-09-25T12:00:00-04:00",
            "title": "Daily Snow and Sea Ice Temperature over North America",
            "description": "This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over North America from September 2002 through May 2003. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. This visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than ~50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. 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. || ",
            "hits": 57
        },
        {
            "id": 2984,
            "url": "https://svs.gsfc.nasa.gov/2984/",
            "result_type": "Visualization",
            "release_date": "2004-09-25T12:00:00-04:00",
            "title": "Daily Snow and Sea Ice Temperature over Europe",
            "description": "This animation shows the global advance and retreat of daily snow cover along with daily sea ice surface temperature over Europe from September 2002 through May 2003. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. This visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than ~50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. 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. || ",
            "hits": 46
        },
        {
            "id": 2985,
            "url": "https://svs.gsfc.nasa.gov/2985/",
            "result_type": "Visualization",
            "release_date": "2004-09-25T12:00:00-04:00",
            "title": "Daily Snow and Sea Ice Temperature over Asia",
            "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. The snow cover was measured by the MODIS instrument on the Terra satellite, while the sea ice surface temperature was measured by the MODIS instrument on the Aqua satellite. Since these instruments cannot take measurements through clouds, in cloud-covered regions or areas with suspect data quality, the prior day's value is retained until a valid data reading is obtained. This visualization designates an area as covered by snow when the instrument takes a valid measurement showing greater than ~50% snow coverage in that area. This area is assumed to be snow covered until the instrument takes a valid measurement showing less than 40% snow coverage in that same area. 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. || ",
            "hits": 30
        }
    ]
}