{ "count": 15, "next": null, "previous": null, "results": [ { "id": 12476, "url": "https://svs.gsfc.nasa.gov/12476/", "result_type": "Produced Video", "release_date": "2017-03-13T12:00:00-04:00", "title": "At Glacial Speed", "description": "A NASA satellite tracks glaciers' slow but steady journey to the sea. || Seasonal_IceFlows_with_hold_BG.1299_1024x576.jpg (1024x576) [210.2 KB] || Seasonal_IceFlows_with_hold_BG.1299_1024x576_print.jpg (1024x576) [209.7 KB] || Seasonal_IceFlows_with_hold_BG.1299_1024x576_thm.png (80x40) [8.9 KB] || Seasonal_IceFlows_with_hold_BG.1299.tif (3840x2160) [10.8 MB] || ", "hits": 138 }, { "id": 12444, "url": "https://svs.gsfc.nasa.gov/12444/", "result_type": "Produced Video", "release_date": "2016-12-12T02:20:00-05:00", "title": "Landsat's Global View of Ice Velocity", "description": "Ice from glaciers constantly flows into the ocean, but the speed the ice moves at changes. Landsat 8 provides near-real-time mapping of ice speed in nearly all the world’s frozen regions. Information like ice speed helps scientists study our home planet and its vulnerability to rising seas. || ", "hits": 33 }, { "id": 11415, "url": "https://svs.gsfc.nasa.gov/11415/", "result_type": "Produced Video", "release_date": "2013-12-24T00:00:00-05:00", "title": "The Coldest Place On Earth", "description": "What is the coldest place in the world? It is a high ridge in Antarctica on the East Antarctic Plateau. On a clear winter night, temperatures there can drop to -135.8° Fahrenheit. The coldest spots develop just downhill from the ridge along a 620-mile stretch between two summits. When weather conditions are right, the ridge cools as it radiates heat into space. This creates a layer of super-chilled air above the surface of the snow and ice that collects in clusters of pockets on the ice sheet. Scientists analyzed 32 years’ worth of satellite data, including measurements made by NASA's Earth-observing fleet, and discovered a new record low was reached on August 10, 2010. Watch the video to learn more. || ", "hits": 444 }, { "id": 11432, "url": "https://svs.gsfc.nasa.gov/11432/", "result_type": "Produced Video", "release_date": "2013-12-09T17:28:00-05:00", "title": "Briefing Materials: Taking Landsat to the Extreme", "description": "At 2:30pm (PST) on Monday, Dec. 9, 2013, there was be a press conference as part of the American Geophysical Union Fall Meeting.What is the coldest place in the world? It is a high ridge in Antarctica on the East Antarctic Plateau where temperatures in several hollows can dip below minus 133.6° Fahrenheit (minus 92° Celsius) on a clear winter night – colder than the previous recorded low temperature.Scientists at the National Snow and Ice Data Center made the discovery while analyzing the most detailed global surface temperature maps to date, developed with data from remote sensing satellites including the MODIS sensor on NASA's Aqua satellite, and the TIRS sensor on Landsat 8, a joint project of NASA and the U.S. Geological Survey (USGS).The researchers analyzed 32 years of data from several satellite instruments that have mapped Antarctica's surface temperature. Near a high ridge that runs from Dome Arugs to Dome Fuji, the scientists found clusters of pockets that have plummeted to record low temperatures dozens of times. The lowest temperature the satellites detected – minus 136° F (minus 93.2° C), on Aug. 10, 2010.The new record is several degrees colder than the previous low of minus 128.6° F (minus 89.2° C), set in 1983 at the Russian Vostok Research Station in East Antarctica. The coldest permanently inhabited place on Earth is northeastern Siberia, where temperatures dropped to a bone-chilling 90 degrees below zero F (minus 67.8° C) in the towns of Verkhoyansk (in 1892) and Oimekon (in 1933).Related feature story: http://www.nasa.gov/content/goddard/nasa-usgs-landsat-8-satellite-pinpoints-coldest-spots-on-earthBriefing SpeakersTed Scambos, National Snow and Ice Data Center (NSIDC), Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, Colorado, USA;Jim Irons, Landsat 8 Project Scientist, NASA's Goddard Space Flight Center, Greenbelt, Maryland.Presenter 1: Ted Scambos || ", "hits": 143 }, { "id": 4126, "url": "https://svs.gsfc.nasa.gov/4126/", "result_type": "Visualization", "release_date": "2013-12-04T00:00:00-05:00", "title": "Coldest Place on Earth", "description": "What is the coldest place in the world? It is a high ridge in Antarctica on the East Antarctic Plateau where temperatures in several hollows can dip below minus 133.6° Fahrenheit (minus 92° Celsius) on a clear winter night - colder than the previous recorded low temperature.Scientists at the National Snow and Ice Data Center made the discovery while analyzing the most detailed global surface temperature maps to date, developed with data from remote sensing satellites including the MODIS sensor on NASA's Aqua satellite, and the TIRS sensor on Landsat 8, a joint project of NASA and the U.S. Geological Survey (USGS).The researchers analyzed 32 years of data from several satellite instruments that have mapped Antarctica's surface temperature. Near a high ridge that runs from Dome Arugs to Dome Fuji, the scientists found clusters of pockets that have plummeted to record low temperatures dozens of times. The lowest temperature the satellites detected - minus 136° F (minus 93.2° C), on Aug. 10, 2010.The new record is several degrees colder than the previous low of minus 128.6° F (minus 89.2° C), set in 1983 at the Russian Vostok Research Station in East Antarctica. The coldest permanently inhabited place on Earth is northeastern Siberia, where temperatures dropped to a bone-chilling 90 degrees below zero F (minus 67.8° C) in the towns of Verkhoyansk (in 1892) and Oimekon (in 1933).Related feature story: http://www.nasa.gov/content/goddard/nasa-usgs-landsat-8-satellite-pinpoints-coldest-spots-on-earth || ", "hits": 7293 }, { "id": 4004, "url": "https://svs.gsfc.nasa.gov/4004/", "result_type": "Visualization", "release_date": "2013-02-20T00:00:00-05:00", "title": "National Climate Assessment Annual Arctic Minimum Sea Ice Extents (1979-2012)", "description": "The National Climate Assessment (NCA) is a central component of the U.S. Global Change Research Program (USGCRP). Every four years, the NCA is required to produce a report for Congress that integrates, evaluates, and interprets the findings of the USGCRP; analyzes the effects of global change on the natural environment, agriculture, energy production and use, land and water resources, transportation, human health and welfare, human social systems, and biological diversity; and analyzes current trends in global change, both human-induced and natural, and projects major trends for the subsequent 25 to 100 years. A draft of the Third National Climate Assessment report is available on the Federal Advisory Committee website. The final report is slated to be released in 2014. This scientific visualization of annual minimum sea ice area over the Arctic from 1979-2012 is one element of the NCA that highlights findings conveyed in the \"Our Changing Climate\", the \"Alaska and the Arctic\" and the \"Impacts of Climate Change on Tribal, Indigenous, and Native Lands and Resources\" chapters of the draft Third NCA report. This record shows a persistent decline in the minimum extent of Arctic sea ice cover. The satellite observations are from passive microwave sensors and processed using the NASA Team algorithm developed by scientists at NASA Goddard Space Flight Center. The sensors that collected the data are the Scanning Multichannel Microwave Radiometer (SMMR) on the NASA Nimbus-7 satellite and a series of Special Sensor Microwave Imagers (SSM/I) and Special Sensor Microwave Imager and Sounders (SSMIS) on U.S. Department of Defense Meteorological Satellite Program (DMSP) satellites. The data from the different sensors are carefully assembled to assure consistency throughout the 34 year record.This visualization is similar to another developed by NASA, but is based on a slightly different algorithm to process the same sensor data. Both show similar downward trends in minimum sea ice area coverage over this time period. || ", "hits": 26 }, { "id": 11153, "url": "https://svs.gsfc.nasa.gov/11153/", "result_type": "Produced Video", "release_date": "2013-01-08T00:00:00-05:00", "title": "Iceberg Maker", "description": "Petermann Glacier has earned a reputation in recent years for birthing \"ice islands\"—icebergs so big they get their own designation. Petermann's ice tongue, the portion of the glacier connected to land but still floating, snakes through a fjord for more than 40 miles, making it the largest of its kind north of the equator. Stressed by ice flow behind it, grinding against a rocky coastline, the front of this tongue has set free island-sized icebergs in the summers of both 2010 and 2012. While this shedding of ice is a normal process, NASA scientists are keeping close watch on how Greenland's ice responds to warming air and ocean temperatures, as the ice sheet has shown rapid changes in the past decade. Watch the visualization to see a sped-up animation of how Petermann Glacier empties ice from Greenland's interior to open water. || ", "hits": 19 }, { "id": 4001, "url": "https://svs.gsfc.nasa.gov/4001/", "result_type": "Visualization", "release_date": "2012-10-18T00:00:00-04:00", "title": "Ice Flow toward the Petermann Glacier, Greenland", "description": "Greenland looks like a big pile of snow seen from space using a regular camera. But satellite radar interferometry helps us detect the motion of ice beneath the snow. Ice starts flowing from the flanks of topographic divides in the interior of the island, and increases in speed toward the coastline where it is channelized along a set of narrow, powerful outlet glaciers. In the east, these glaciers make their sinuous way through complex terrain at low speed. They form long floating extensions that deform slowly in the cold north. As we move toward sectors of higher snowfall in the northwest and centre west, ice flow speeds increase by nearly a factor 10, with many, smaller glaciers flowing straight down to the coastline at several kilometers per year.This complete description of ice motion was only made possible from the coordinated effort of four space agencies: the Japanese Space Agency, the Canadian Space Agency, the European Space Agency, and NASA's Jet Propulsion Laboratory. The data will help scientists improve their understanding of the dynamics of ice in Greenland and in projecting how the Greenland Ice Sheet will respond to climate change in the decades and centuries to come. || ", "hits": 51 }, { "id": 11064, "url": "https://svs.gsfc.nasa.gov/11064/", "result_type": "Produced Video", "release_date": "2012-08-21T00:00:00-04:00", "title": "Cool Migration", "description": "The world's second largest ice sheet seems uniform and motionless from above. But years of satellite measurements compressed into a few seconds illustrate just how fluid Greenland's ice really is. Several space agencies, including NASA, have closely monitored the ice sheet to understand how its dynamics might be influenced by changes to Earth's climate and how such changes could affect sea level rise. With the help of a remote sensing technique called radar interferometry, NASA scientists were able to create the first complete map that shows how Greenland's ice moves from the interior toward outlet glaciers on the coast. The speed and direction of the flows can be seen in the color-coded visualization, where areas shaded blue and purple represent the fastest ice, yellow and pink the slowest. || ", "hits": 48 }, { "id": 3962, "url": "https://svs.gsfc.nasa.gov/3962/", "result_type": "Visualization", "release_date": "2012-07-02T00:00:00-04:00", "title": "Greenland Ice Flow", "description": "Greenland looks like a big pile of snow seen from space using a regular camera. But satellite radar interferometry helps us detect the motion of ice beneath the snow. Ice starts flowing from the flanks of topographic divides in the interior of the island, and increases in speed toward the coastline where it is channelized along a set of narrow, powerful outlet glaciers. In the east, these glaciers make their sinuous way through complex terrain at low speed. They form long floating extensions that deform slowly in the cold north. As we move toward sectors of higher snowfall in the northwest and center west, ice flow speeds increase by nearly a factor of 10, with many, smaller glaciers flowing straight down to the coastline at several kilometers per year.This complete description of ice motion was only made possible from the coordinated effort of four space agencies: the Japanese Space Agency, the Canadian Space Agency, the European Space Agency, and NASA's Jet Propulsion Laboratory. The data will help scientists improve their understanding of the dynamics of ice in Greenland and in projecting how the Greenland Ice Sheet will respond to climate change in the decades and centuries to come. || ", "hits": 103 }, { "id": 20100, "url": "https://svs.gsfc.nasa.gov/20100/", "result_type": "Animation", "release_date": "2007-02-27T00:00:00-05:00", "title": "Antarctic Sub-glacial Lakes", "description": "The following animation helps to explain the dynamics of subglacial water exchange and what it looks like from space. Starting from an artist's concept of the Antarctic surface we move down to a cross section of the ice sheet with lakes hidden deep beneath. As pressure is exerted on one lake, the water in it is forced to an adjacent lake. This water movement results in elevation changes at the surface over both lakes, detectable by NASA satellites. The camera then moves to a 'top-down' view of a system of these hidden lakes and streams before dissolving into observed satellite data. || ", "hits": 134 }, { "id": 3403, "url": "https://svs.gsfc.nasa.gov/3403/", "result_type": "Visualization", "release_date": "2007-02-19T00:00:00-05:00", "title": "Antarctic Plumbing: Lake Englehardt's Subglacial Hydraulic System", "description": "ICESat satellite laser altimeter elevation profiles from 2003-2006 collected over West Antarctica reveal numerous regions of temporally varying elevation. MODIS satellite imagery over roughly the same time period collaborates where these subglacial fluctuations have occurred. These observations have led scientists to conclude that subglacial water movement is happening in this lake region, revealing a widespread, dynamic subglacial water system that could provide important insights into ice flow and the mass balance of Antarctica's ice. || ", "hits": 78 }, { "id": 2062, "url": "https://svs.gsfc.nasa.gov/2062/", "result_type": "Visualization", "release_date": "2001-01-30T12:00:00-05:00", "title": "Larsen Ice Shelf Zoom", "description": "Zoom into RADARSAT data then to Landsat 7 data of Larsen Ice Shelf area, then into Landsat panchromatic band (15m) data. Data is from August 8, 2000. || a002062.00005_print.png (720x480) [485.8 KB] || a002062_pre.jpg (320x242) [9.5 KB] || a002062.webmhd.webm (960x540) [3.2 MB] || a002062.dv (720x480) [47.7 MB] || a002062.mp4 (640x480) [2.7 MB] || a002062.mpg (352x240) [1.5 MB] || ", "hits": 8 }, { "id": 2063, "url": "https://svs.gsfc.nasa.gov/2063/", "result_type": "Visualization", "release_date": "2001-01-30T12:00:00-05:00", "title": "Larsen Ice Shelf Pan", "description": "Pan around Landsat 7 data of the Larsen Ice Shelf area. Data is from August 8, 2000. || a002063.00005_print.png (720x480) [601.6 KB] || a002063_pre.jpg (320x242) [14.3 KB] || a002063.webmhd.webm (960x540) [22.0 MB] || a002063.dv (720x480) [296.2 MB] || a002063.mp4 (640x480) [16.9 MB] || a002063.mpg (352x240) [10.9 MB] || ", "hits": 15 }, { "id": 2051, "url": "https://svs.gsfc.nasa.gov/2051/", "result_type": "Visualization", "release_date": "2001-01-08T12:00:00-05:00", "title": "Larsen Ice Shelf Animation", "description": "Time series of Larsen ice shelf. Image sequence was taken on December 26, 1993; February 13, 1995, March 21, 1998; November 21, 1998; and March 2, 2000. || Animated fades between images of Larsen ice shelf breakup. || a002051.00005_print.png (720x480) [430.7 KB] || a002051_pre.jpg (320x240) [15.8 KB] || a002051.webmhd.webm (960x540) [2.3 MB] || a002051.dv (720x480) [52.3 MB] || a002051.mp4 (640x480) [2.9 MB] || a002051.mpg (320x240) [1.2 MB] || ", "hits": 13 } ] }