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    "results": [
        {
            "id": 3899,
            "url": "https://svs.gsfc.nasa.gov/3899/",
            "result_type": "Visualization",
            "release_date": "2017-01-04T00:00:00-05:00",
            "title": "Seasonal sea ice and snow cover visualizations",
            "description": "Seasonal snow cover and sea ice across the globe from September 2010 to August 2011 || FlatMap_1920x108060fps_0000_print.jpg (1024x576) [99.4 KB] || FlatMap_1920x108060fps_0000_searchweb.png (320x180) [65.9 KB] || FlatMap_1920x108060fps_0000_web.png (320x180) [65.9 KB] || FlatMap_1920x108060fps_0000_thm.png (80x40) [5.8 KB] || Global (1920x1080) [0 Item(s)] || Global (1920x1080) [0 Item(s)] || Global (1280x720) [0 Item(s)] || FlatMap_1920x1080_p30.mp4 (1920x1080) [13.3 MB] || FlatMap_1280x720_p30.mp4 (1280x720) [8.2 MB] || FlatMap_1280x720_p30.webm (1280x720) [3.6 MB] || FlatMap_1920x1080_p30.mp4.hwshow [187 bytes] || ",
            "hits": 67
        },
        {
            "id": 4256,
            "url": "https://svs.gsfc.nasa.gov/4256/",
            "result_type": "Visualization",
            "release_date": "2015-03-16T10:00:00-04:00",
            "title": "The Winter of 2013 – 2014: A Cold, Snowy and Icy Winter in North America",
            "description": "This animation shows the snow cover over North America during the 2013-2014 winter as well as the ice concentration over the Great Lakes.  The date and a graph showing the percent of ice cover over the Great Lakes and Lake Superior is shown on this version. || GreatLakes_ice_2014-15_30p.02845_print.jpg (1024x576) [134.0 KB] || GreatLakes_ice_2014-15_30p.02845_searchweb.png (320x180) [90.3 KB] || GreatLakes_ice_2014-15_30p.02845_thm.png (80x40) [6.6 KB] || GreatLakes_Ice_2013-2014_720.mp4 (1280x720) [42.1 MB] || GreatLakes_Ice_2013-2014_1080.mp4 (1920x1080) [74.5 MB] || GreatLakes_ice_withOlay (1920x1080) [0 Item(s)] || GreatLakes_ice_withOlay (1920x1080) [0 Item(s)] || GreatLakes_Ice_2013-2014_720.webm (1280x720) [27.5 MB] || GreatLakes_Ice_2013-2014_4256.key [45.7 MB] || GreatLakes_Ice_2013-2014_4256.pptx [43.1 MB] || ",
            "hits": 82
        },
        {
            "id": 30372,
            "url": "https://svs.gsfc.nasa.gov/30372/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-24T12:00:00-04:00",
            "title": "Monthly Snow Cover",
            "description": "Snow and ice cover most of the Earth's polar regions throughout the year, but the coverage at lower latitudes changes with the seasons. Northern Hemisphere snow cover changes dramatically throughout the year, but the only significant snow cover in the Southern Hemisphere is in Antarctica, which has very few snow-free areas at any time of the year. These maps show monthly snow cover data from February 2000 to the present, derived using observations from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard NASA's Terra satellite. The colors show the percent of land area that is covered with snow. The white areas show lands that were completely snow-covered, while the light blue shades show regions in which there was only partial snow cover. || ",
            "hits": 107
        },
        {
            "id": 3944,
            "url": "https://svs.gsfc.nasa.gov/3944/",
            "result_type": "Visualization",
            "release_date": "2012-05-14T00:00:00-04:00",
            "title": "Pulse of Snow and Sea Ice",
            "description": "Snow and sea ice in the Northern and Southern Hemispheres pulse at exact opposite times of year, constantly out of phase. || ",
            "hits": 51
        },
        {
            "id": 3928,
            "url": "https://svs.gsfc.nasa.gov/3928/",
            "result_type": "Visualization",
            "release_date": "2012-04-07T00:00:00-04:00",
            "title": "North America Snow Cover 2009-2012",
            "description": "This entry features visualization material of daily snow cover over North America from July 1, 2009 - March 11, 2012 and still images of snow cover in the Western region of United States. || ",
            "hits": 53
        },
        {
            "id": 3619,
            "url": "https://svs.gsfc.nasa.gov/3619/",
            "result_type": "Visualization",
            "release_date": "2009-09-01T18:00:00-04:00",
            "title": "A Tour of the Cryosphere 2009",
            "description": "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 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 clearly in the flyover of the Landsat Image Mosaic of Antarctica. 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 apparent area of the continent during the winter.From Antarctica, the animation travels over South America showing glacier locations on 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 affected by permafrost are visible. As time marches forward from March to September, the daily snow and sea ice recede and reveal the vast areas of permafrost surrounding the Arctic Ocean.The animation shows a one-year cycle of Arctic sea ice followed by the mean September minimum sea ice for each year from 1979 through 2008. The superimposed graph of the area of Arctic sea ice at this minimum clearly shows the dramatic decrease in Artic sea ice over the last few years.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 1964 to 2001, the animation shows significant recession from 2001 through 2009. As the animation pulls out from Jakobshavn, the effect of the increased flow rate of Greenland costal glaciers is shown by the thinning ice shelf regions near the Greenland coast.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.Note: This animation is an update of the animation 'A Short Tour of the Cryosphere', which is itself an abridged version of the animation 'A Tour of the Cryosphere'. The popularity of the earlier animations and their continuing relevance prompted us to update the datasets in parts of the animation and to remake it in high definition. In certain cases, our experiences in using the earlier work have led us to tweak the presentation of some of the material to make it clearer. Our thanks to Dr. Robert Bindschadler for suggesting and supporting this remake. || ",
            "hits": 48
        },
        {
            "id": 3373,
            "url": "https://svs.gsfc.nasa.gov/3373/",
            "result_type": "Visualization",
            "release_date": "2006-09-30T00:00:00-04:00",
            "title": "Zoom from Jakobshavn Glacier with AMSR-E Daily Sea Ice and MODIS Daily Snow Cover",
            "description": "Beginning from a view of Greenland's Jakobshavn glacier, this animation shows motion of sea ice and snow cover over the Arctic from 10/1/2002 through 6/23/2003 as the camera pulls out to frame the full globe. The false color of the sea ice is derived from the AMSR-E 6.25 km brightness temperature. The sea ice extent is defined by AMSR-E 12.5 km sea ice concentration, identifying all regions having a sea ice concentration of greater than 15%. Because AMSR-E is a passive microwave sensor that functions independently from atmospheric effects, this sensor is able to observe the entire polar region every day, even through clouds and snowfalls. || ",
            "hits": 19
        },
        {
            "id": 2925,
            "url": "https://svs.gsfc.nasa.gov/2925/",
            "result_type": "Visualization",
            "release_date": "2006-06-13T12:00:00-04:00",
            "title": "Daily Snow over North America 2002-2003 with Permafrost Map",
            "description": "This animation shows daily snow cover over North America from September 1, 2002 through June 30, 2003. A permafrost map shown in frost-green indicates where the ground is frozen throughout the year. The sea ice climatology indicates the average extent of the sea ice during each month. || ",
            "hits": 46
        },
        {
            "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": 131
        },
        {
            "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": 65
        },
        {
            "id": 2932,
            "url": "https://svs.gsfc.nasa.gov/2932/",
            "result_type": "Visualization",
            "release_date": "2004-12-31T12:00:00-05:00",
            "title": "Daily Snow over North America 2002-2003 without Permafrost Map",
            "description": "This animation shows daily snow cover over North America from September 1, 2002 through June 30, 2003. The sea ice climatology indicates the average extent of the sea ice during each month. || ",
            "hits": 63
        },
        {
            "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": 22
        },
        {
            "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": 45
        },
        {
            "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": 109
        },
        {
            "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": 88
        },
        {
            "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": 36
        }
    ]
}