{ "count": 7, "next": null, "previous": null, "results": [ { "id": 30977, "url": "https://svs.gsfc.nasa.gov/30977/", "result_type": "Hyperwall Visual", "release_date": "2019-03-29T00:00:00-04:00", "title": "Nighttime Views of the 2018 Kilauea Eruption", "description": "An animation of Landsat-8 truecolor and nighttime imagery shows the prograssion of the East Rift Zone eruption. || kilauea_2018_east_rift_zone_20180712_print.jpg (1024x576) [70.6 KB] || kilauea_2018_east_rift_zone_20180712.png (3840x2160) [1.8 MB] || kilauea_2018_east_rift_zone_20180712_searchweb.png (320x180) [45.1 KB] || kilauea_2018_east_rift_zone_20180712_thm.png (80x40) [3.8 KB] || kilauea_2018_east_rift_zone_720p.mp4 (1280x720) [2.7 MB] || kilauea_2018_east_rift_zone_720p.webm (1280x720) [1.9 MB] || ", "hits": 181 }, { "id": 30923, "url": "https://svs.gsfc.nasa.gov/30923/", "result_type": "Hyperwall Visual", "release_date": "2017-12-07T12:00:00-05:00", "title": "Calving of A-68 from the Larsen C Ice Shelf, Antarctica 2016-2017", "description": "Developing rift || LarsenC_2016_2017_LandsatVIIRSMODIS_Series.Slide3_print.jpg (1024x574) [202.9 KB] || LarsenC_2016_2017_LandsatVIIRSMODIS_Series.Slide3.png (4104x2304) [11.3 MB] || ", "hits": 43 }, { "id": 30914, "url": "https://svs.gsfc.nasa.gov/30914/", "result_type": "Hyperwall Visual", "release_date": "2017-12-06T14:00:00-05:00", "title": "Pine Island Glacier Retreat, Antarctica", "description": "This visualization shows Sentinel-1 imagery from October 2014 to October 2017 over Pine Island Glacier in West Antarctica. The advance and retreat of the front of this ~35-kilometer (~22-mile) wide outlet glacier can be seen in this 6-day interval image series. The rapid flow of inland ice causes the glacier front to advance and two major calving events cause the ice front to retreat.Combined, the 2015 and 2017 calving events have led to the glacier’s ice front being fully disconnected from the North Ice Shelf. The changes to this large outlet from West Antarctica could signal additional sea level contributions from this glacier and the even larger outlet to the west, Thwaites Glacier.Credit: Stef Lhermitte, Delft University of Technology, NetherlandsContains modified Copernicus Sentinel data (2017), processed by ESA || pine_island_1080p.00001_print.jpg (1024x576) [180.8 KB] || pine_island_1080p.00001_searchweb.png (320x180) [98.2 KB] || pine_island_1080p.00001_thm.png (80x40) [6.7 KB] || pine_island_1080p.mp4 (1920x1080) [54.5 MB] || pine_island_720p.mp4 (1280x720) [26.3 MB] || pine_island_1080p.webm (1920x1080) [5.0 MB] || 4104x2304_16x9_30p (4104x2304) [0 Item(s)] || pine_island_2304p.mp4 (4096x2304) [156.5 MB] || ", "hits": 122 }, { "id": 4381, "url": "https://svs.gsfc.nasa.gov/4381/", "result_type": "Visualization", "release_date": "2015-10-14T12:00:00-04:00", "title": "Nebraska Water Usage", "description": "Animation begins with a wide view of the entire United States and then zooms down to an area in Nebraska where water usage studies have been done using Landsat-8 satellite data. The camera slowly pans across the area first showing true color Landsat-8 data, then transitioning to temperature data (in shades of orange and violet), then to ETRF (shades of green), ending with an extrusion of water use data (shades of blue) where the camera pulls back to show the entire area of interest. || neb_v2.2150_print.jpg (1024x576) [191.2 KB] || neb_v2.mp4 (1920x1080) [52.8 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || neb_v2.webm (1920x1080) [8.6 MB] || neb_v2.mp4.hwshow [335 bytes] || ", "hits": 53 }, { "id": 30469, "url": "https://svs.gsfc.nasa.gov/30469/", "result_type": "Hyperwall Visual", "release_date": "2013-11-01T12:00:00-04:00", "title": "Landsat Data Help Water-Resource Managers", "description": "In the Western United States between 80 and 90% of freshwater is used for agriculture. In Southern California irrigated farmland stretches southward across the desert from the Salton Sea—an artificial inland sea—to the Mexico border. In the natural-color image [left] acquired on May 15, 2013, by Landsat 8’s Operational Land Imager, blocks of square farmland appear in shades of green and tan, while urban areas such as El Centro, California and Mexicali, Mexico appear in shades of gray. Accurate estimates of total crop area provided by Landsat satellites can be used to help forecast commodities in the United States and the world food market. On that same day, thermal measurements from Landsat 8’s Thermal Infrared Sensor [right] show different temperatures between crop fields as well as urban and desert areas. Cooler areas (e.g., irrigated crops) appear as dark purple and red shades, while warmer areas (e.g., urban and desert areas) appear as shades of bright yellow and white. Plants cool down when they transpire, so the combination of water evaporating from the plants and the ground (i.e., evapotranspiration) lowers the temperature of the irrigated land. Pixels representing cooler areas in thermal images from TIRS help water-resource managers determine where water is being used for irrigation, allowing them to make management decisions on water distribution to preserve this scarce resource. When an earlier design of Landsat 8 did not include a thermal infrared band, the Western States Water Council advocated for its inclusion.Used in 2014 Calendar. || ", "hits": 43 }, { "id": 30047, "url": "https://svs.gsfc.nasa.gov/30047/", "result_type": "Hyperwall Visual", "release_date": "2013-06-20T11:00:00-04:00", "title": "Thermal Sensor Lights Up from Volcanic Heat", "description": "As the Landsat Data Continuity Mission—now renamed Landsat-8—flew over Indonesia’s Flores Sea on April 29, 2013, the satellite’s Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) captured these images of the Paluweh volcano spewing ash. The OLI captured the natural-color image that shows the white cloud of ash drifting northwest over the darker forests and water, while TIRS detected thermal infrared radiation, or heat, from the scene. The TIRS image reveals a hot spot (bright white) where lava was oozing out near the top of the volcano, surrounded by cooler ash clouds (dark gray). The image pair illustrates the value of having both OLI and TIRS on Landsat-8 and highlights TIRS ability to detect very small changes in temperature over small distances—down to about a tenth of a degree Celsius. || ", "hits": 104 }, { "id": 30045, "url": "https://svs.gsfc.nasa.gov/30045/", "result_type": "Hyperwall Visual", "release_date": "2013-06-18T00:00:00-04:00", "title": "Looking for Water Amidst the Heat", "description": "In Southern California irrigated farmland stretches north- and southward from the Salton Sea—an artificial inland sea in the desert. Blocks of square farmland appear in shades of green and tan in the natural-color image acquired on March 24, 2013 by the Operational Land Imager onboard the Landsat Data Continuity Mission—now renamed Landsat-8. On that same day, thermal measurements from the Thermal Infrared Sensor (grayscale image) show that the crops had different temperatures—specifically, cooler areas appear as dark shades, while warmer areas appear as bright shades. Dark pixels—representing cooler areas—in thermal images from TIRS help water managers determine where water is being used for irrigation. Plants cool down when they transpire, so the combination of water evaporating from the plants and the ground (i.e., evapotranspiration) lowers the temperature of the irrigated land. Scientists use these thermal measurements to calculate how much water agricultural fields are using. || ", "hits": 25 } ] }