{ "count": 13, "next": null, "previous": null, "results": [ { "id": 13471, "url": "https://svs.gsfc.nasa.gov/13471/", "result_type": "Produced Video", "release_date": "2019-12-09T14:00:00-05:00", "title": "Operation IceBridge - Icebergs", "description": "Icebergs start as land ice—snow that has accumulated on land and, over the course of many years, has been compacted into ice. When this glacial ice flows downstream and reaches the sea, cracks in the ice are widened as warm water and air melt the ice from below and above, respectively. When these cracks become large enough, pieces break off like fingernail clippings and drift into the water as icebergs. || ", "hits": 43 }, { "id": 30890, "url": "https://svs.gsfc.nasa.gov/30890/", "result_type": "Hyperwall Visual", "release_date": "2017-08-03T00:00:00-04:00", "title": "Landsat 'Sees in the Dark' the Evolution of Antarctica’s Delaware-Sized Iceberg", "description": "Evolution of Larsen C ice shelf leading up to and following the calving || larsencriftevolution20162017v5.png (3427x1650) [5.0 MB] || larsencriftevolution20162017v5_print.jpg (1024x493) [158.0 KB] || larsencriftevolution20162017v5_searchweb.png (320x180) [69.6 KB] || larsencriftevolution20162017v5_thm.png (80x40) [6.3 KB] || ", "hits": 89 }, { "id": 12633, "url": "https://svs.gsfc.nasa.gov/12633/", "result_type": "Produced Video", "release_date": "2017-07-12T11:00:00-04:00", "title": "Crack in Larsen C Ice Shelf", "description": "Thermal wavelength image of a large iceberg, which has calved off the Larsen C ice shelf. Darker colors are colder, and brighter colors are warmer, so the rift between the iceberg and the ice shelf appears as a thin line of slightly warmer area. Image from July 12, 2017, from the MODIS instrument on NASA's Aqua satellite.Credit: NASA Worldview || nasa-worldview-2017-07-12-thermal-detail-label.jpg (1280x800) [109.6 KB] || nasa-worldview-2017-07-12-thermal-detail.jpg (1280x800) [76.5 KB] || ", "hits": 46 }, { "id": 11987, "url": "https://svs.gsfc.nasa.gov/11987/", "result_type": "Produced Video", "release_date": "2015-08-26T15:45:00-04:00", "title": "Greenland Icebergs", "description": "GreenlandReel_Icebergs_720H264_print.jpg (1024x576) [90.9 KB] || GreenlandReel_Icebergs_720H264_searchweb.png (320x180) [85.7 KB] || GreenlandReel_Icebergs_720H264_web.png (180x320) [85.7 KB] || GreenlandReel_Icebergs_720H264_thm.png (80x40) [5.7 KB] || GreenlandReel_Icebergs_720H264.mp4 (1280x720) [466.5 MB] || GreenlandReel_Icebergs_1080H264.mp4 (1920x1080) [467.9 MB] || GreenlandReel_Icebergs_720H264.webm (1280x720) [29.8 MB] || GreenlandReel_Icebergs_2160H264.mp4 (3840x2160) [1.1 GB] || GreenlandReel_Icebergs_2160APR.mov (3840x2160) [30.8 GB] || ", "hits": 29 }, { "id": 11529, "url": "https://svs.gsfc.nasa.gov/11529/", "result_type": "Produced Video", "release_date": "2014-04-25T17:00:00-04:00", "title": "Pine Island Glacier Ice Island 2013", "description": "In early November 2013, a large iceberg separated from the front of Antarctica’s Pine Island Glacier. It thus began a journey across Pine Island Bay, a basin of the Amundsen Sea. The ice island, named B31, will likely be swept up soon in the swift currents of the Southern Ocean, though it will be hard to track visually for the next six months as Antarctica heads into winter darkness.Over the course of five months in Antarctic spring and summer, the Moderate Resolution Imaging Spectroradiometer (MODIS)—an instrument on NASA’s Terra and Aqua satellites—captured a series of images of ice island B31. The time-lapse video below shows the motion of the massive chunk of ice.The significance of the event is still being sorted out. “Iceberg calving is a very normal process,” noted Kelly Brunt, a glaciologist at NASA’s Goddard Space Flight Center. “However, the detachment rift, or crack, that created this iceberg was well upstream of the 30-year average calving front of Pine Island Glacier, so this a region that warrants monitoring.”Pine Island Glacier has been the subject of intense study in the past two decades because it has been thinning and draining rapidly and may be one of the largest contributors to sea level rise. || ", "hits": 21 }, { "id": 3395, "url": "https://svs.gsfc.nasa.gov/3395/", "result_type": "Visualization", "release_date": "2007-01-05T00:00:00-05:00", "title": "Jakobshavn Glacier Calving Front Recession from 1850 to 2006", "description": "Jakobshavn Isbrae is located on the west coast of Greenland at Latitude 69 N. The ice front, where the glacier calves into the sea, receded more than 40 km between 1850 and 2006. Between 1850 and 1964 the ice front retreated at a steady rate of about 0.3 km/yr, after which it occupied approximately the same location until 2001, when the ice front began to recede again, but far more rapidly at about 3 km/yr. After 2004, the glacier began retreating up its two main tributaries: one to the north, and a more rapid one to the southeast. These changes are important for many reasons. As more ice moves from glaciers on land into the ocean, it causes a rise in sea level. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of the ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase. || ", "hits": 116 }, { "id": 3305, "url": "https://svs.gsfc.nasa.gov/3305/", "result_type": "Visualization", "release_date": "2005-11-10T00:00:00-05:00", "title": "McMurdo Sound Flows Easy", "description": "The B-15A iceberg has finally moved out of the McMurdo Sound. With this clog gone, the sea ice is now able to circulate freely and it opens up the feeding grounds to the wildlife. || ", "hits": 21 }, { "id": 3138, "url": "https://svs.gsfc.nasa.gov/3138/", "result_type": "Visualization", "release_date": "2005-03-28T12:00:00-05:00", "title": "QuikSCAT Antarctic Sea Ice (WMS)", "description": "The sea ice around Antarctica grows dramatically from late February, when large parts of the coast are ice-free, to October, when the amount of sea ice effectively doubles the size of the continent. The SeaWinds Scatterometer instrument on the QuikSCAT satellite captures this dramatic ebb and flow and shows the sea ice as dynamic and always moving, even in areas that are ice-bound. This animation shows the sea ice around Antarctica from SeaWinds during 2004. SeaWinds can see individual icebergs if they are large enough, and a large iceberg can be seen for most of the year south of South America as it moves from the Antarctic Peninsula to the South Sandwich Islands. Also visible are the very convoluted and dynamic border between the sea ice and the open sea and holes in the sea ice created by the movement around fixed land features such as islands. || ", "hits": 27 }, { "id": 3127, "url": "https://svs.gsfc.nasa.gov/3127/", "result_type": "Visualization", "release_date": "2005-03-09T12:00:00-05:00", "title": "Pine Island Glacier Calving (WMS)", "description": "The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. This series of images from the MISR instrument on the Terra satellite not only shows the crack expanding and the iceberg breaking off, but the seaward moving glacial flow in the parts of the Pine Island Glacier upstream of the crack. || ", "hits": 60 }, { "id": 3123, "url": "https://svs.gsfc.nasa.gov/3123/", "result_type": "Visualization", "release_date": "2005-03-04T12:00:00-05:00", "title": "Larsen Ice Shelf Collapse (WMS)", "description": "The Larsen ice shelf at the northern end of the Antarctic Peninsula experienced a dramatic collapse between January 31 and March 7, 2002. First, melt ponds appeared on the ice shelf during these summer months (seen in blue on the shelf), then a minor collapse of about 800 square kilometers occurred. Finally, a 2600 square kilometer collapse took place, leaving thousands of sliver icebergs and berg fragments where the shelf formerly lay. Brownish streaks within the floating chunks mark areas where rocks and morainal debris are exposed from the former underside and interior of the shelf. These images were acquired by the MODIS instrument on the Terra satellite. || ", "hits": 29 }, { "id": 3086, "url": "https://svs.gsfc.nasa.gov/3086/", "result_type": "Visualization", "release_date": "2005-01-18T12:00:00-05:00", "title": "Antarctic Iceberg Breaks Up Ice Sheet", "description": "The B-15A iceberg has collided into a neighboring ice sheet. This collision has caused the ice sheet to break up into smaller parts. The B-15A iceberg has been blocking shipping lanes and the feeding grounds of 3,000 Adele penguins, for over 4 years. || ", "hits": 23 }, { "id": 3081, "url": "https://svs.gsfc.nasa.gov/3081/", "result_type": "Visualization", "release_date": "2005-01-11T12:00:00-05:00", "title": "Giant Iceberg in McMurdo Sound (WMS)", "description": "Iceberg B-15A, in Antarctica's McMurdo Sound, is as large as Long Island, NY (3,000 square kilometers or 1,200 square miles) and is the largest fragment of a much larger iceberg that broke away from the Ross Ice Shelf in March 2000. Iceberg B-15A has trapped sea ice in McMurdo Sound, and the ice build-up presents significant problems for Antarctic penguins, which must now swim great distances to reach open waters and food. These images were taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA's Aqua and Terra satellites between 2004-11-09 and 2005-01-17. || ", "hits": 16 }, { "id": 2949, "url": "https://svs.gsfc.nasa.gov/2949/", "result_type": "Visualization", "release_date": "2004-05-19T12:00:00-04:00", "title": "International Ice Patrol's 2003 Seasonal Iceberg Data", "description": "The International Ice Patrol (IIP) continuously gathers iceberg sightings and compiles them into an annual database, effectively tracking the location of numerous North Atlantic icebergs. Since these icebergs intersect major shipping lanes tracking them is essential for ocean travel safety. This animation not only tracks the speed and distance travelled of individual icebergs, but symbolically distinguishes their relative sizes by keeping growlers, bergy bits, and small icebergs small, while bigger icebergs are sized larger. Disclaimer: The size of icebergs depicted are relative to one another, but not true to scale. Had they been true to scale, most would not be visible from this distance. || ", "hits": 12 } ] }