{ "count": 18, "next": null, "previous": null, "results": [ { "id": 4804, "url": "https://svs.gsfc.nasa.gov/4804/", "result_type": "Visualization", "release_date": "2020-10-13T00:00:00-04:00", "title": "Greenland Ice Sheet: Three Futures", "description": "This movie shows the evolution of several regions of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios. Each scenario reflects a potential future climate outcome based on current and future greenhouse gas emmisions. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008. || Greenland_NE_2008_2300_HD_still.2127.jpg (1920x1080) [1.0 MB] || Greenland_NE_2008_2300_HD_still.2127_print.jpg (1024x576) [159.2 KB] || Greenland_NE_2008_2300_HD_still.2127_searchweb.png (320x180) [81.1 KB] || Greenland_NE_2008_2300_HD_still.2127_thm.png (80x40) [7.1 KB] || GreenlandVizV5.webm (1920x1080) [19.7 MB] || Greenland_NE_2008_2300_HD_still.2127.tif (1920x1080) [2.0 MB] || GreenlandVizV5.mp4 (1920x1080) [181.9 MB] || GreenlandViz_FINAL.mov (1920x1080) [5.8 GB] || GreenlandVizV5.mp4.hwshow [378 bytes] || ", "hits": 116 }, { "id": 13492, "url": "https://svs.gsfc.nasa.gov/13492/", "result_type": "Produced Video", "release_date": "2019-12-09T16:20:00-05:00", "title": "48 Years of Alaska Glaciers", "description": "Mark Fahnestock, a scientist with the Geological Institute of the University of Alaska Fairbanks, has assembled annual mosaics of all the glaciers in Alaska and the Yukon using Landsat images going back to 1972. Using these mosaics, Mark is able to study glacier motion and speed.All music published by Atmosphere Music Ltd [PRS]: Inducing Waves, composer Ben Niblett [PRS] Jon Cotton [PRS]; Critical Pathway, composer Rik Carter [PRS]; Emerging Discovery, composer Rik Carter [PRS]Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || 13492_Alaska_Glaciers_mosaic_print.jpg (1920x1080) [1.0 MB] || 13492_Alaska_Glaciers_mosaic_print_searchweb.png (320x180) [135.5 KB] || 13492_Alaska_Glaciers_mosaic_print_thm.png (80x40) [9.0 KB] || 13492_Alaska_Glaciers.mov (1920x1080) [4.3 GB] || 13492_Alaska_Glaciers.mp4 (1920x1080) [516.6 MB] || 13492_Alaska_Glaciers.webm (1920x1080) [38.7 MB] || 13492_Alaska_Glaciers-captions.en_US.srt [5.9 KB] || 13492_Alaska_Glaciers-captions.en_US.vtt [5.9 KB] || ", "hits": 404 }, { "id": 4743, "url": "https://svs.gsfc.nasa.gov/4743/", "result_type": "Visualization", "release_date": "2019-07-30T00:00:00-04:00", "title": "Greenland's Jakobshavn Region: Three Simulated Greenland Ice Sheet Response Scenarios: 2008 - 2300", "description": "The Greenland Ice Sheet holds enough water to raise the world’s sea level by over 7 meters (23 feet). Rising atmosphere and ocean temperatures have led to an ice loss equivalent to over a centimeter increase in global mean sea-level between 1991 and 2015. Large outlet glaciers, rivers of ice moving to the sea, drain the ice from the interior of Greenland and cause the outer margins of the ice sheet to recede. Improvements in measuring the ice thickness in ice sheets is enabling better simulation of the flow in outlet glaciers, which is key to predicting the retreat of ice sheets into the future.Recently, a simulation of the effects of outlet glacier flow on ice sheet thickness coupled with improved data and comprehensive climate modeling for differing future climate scenarios has been used to estimate Greenland’s contribution to sea-level over the next millennium. Greenland could contribute 5–34 cm (2-13 inches) to sea-level by 2100 and 11–162 cm (4-64 inches) by 2200, with outlet glaciers contributing 19–40 % of the total mass loss. The analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, followed by ice dynamics. Uncertainties in ocean conditions play a minor role, particularly in the long term. Greenland will very likely become ice-free within a millennium without significant reductions in greenhouse gas emissions.Three visualizations of the evolution of the Jakobshavn region of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios are shown below. Each scenario is described briefly in the caption under each visualization. Each of the three visualizations are provided with a date, colorbar and a distance scale as well as without. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008.The data sets used for these animations are the control (“CTRL”) simulations and were produced with the open-source Parallel Ice Sheet Model . All data sets for this study are publicly available at the NSF Arctic Data Center || ", "hits": 30 }, { "id": 4706, "url": "https://svs.gsfc.nasa.gov/4706/", "result_type": "Visualization", "release_date": "2019-07-28T00:00:00-04:00", "title": "Greenland's Hiawatha Crater", "description": "This visualization shows the location of the Hiawatha Glacier near Inglefield Land in northwest Greenland. The surface of the ice sheet fades away to show the impact crater discovered beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows that the diameter of the crater is more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.The visualization also shows how the scientists from Germany's Alfred Wegener Institute (AWI) flew the Polar 6 aircraft (a DC-3T) to collect radar data over the Hiawatha impact crater. The radar data is shown in detail as curtains of the radar data are dissolved away to display the layers of the ice sheet in the interior of the crater. || Hiawatha.0590_print.jpg (1024x576) [150.4 KB] || Hiawatha.0590_searchweb.png (320x180) [88.4 KB] || Hiawatha.0590_thm.png (80x40) [6.2 KB] || 4706_Hiawatha_Crater.webmhd.webm (1080x606) [23.5 MB] || 4706_Hiawatha_Crater.mp4 (1920x1080) [228.6 MB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || 4706_Hiawatha_Crater.en_US.vtt [2.1 KB] || 4706_Hiawatha_Crater.en_US.srt [2.0 KB] || Hiawatha_Prores_4k.mp4 (3840x2160) [566.2 MB] || 4706_Hiawatha_Crater.mov (1920x1080) [1.9 GB] || Hiawatha_Prores_4k.mov (3840x2160) [7.6 GB] || ", "hits": 80 }, { "id": 4738, "url": "https://svs.gsfc.nasa.gov/4738/", "result_type": "Visualization", "release_date": "2019-07-24T00:00:00-04:00", "title": "Northeast Regional View of Three Simulated Greenland Ice Sheet Response Scenarios: 2008 - 2300", "description": "The Greenland Ice Sheet holds enough water to raise the world’s sea level by over 7 meters (23 feet). Rising atmosphere and ocean temperatures have led to an ice loss equivalent to over a centimeter increase in global mean sea-level between 1991 and 2015. Large outlet glaciers, rivers of ice moving to the sea, drain the ice from the interior of Greenland and cause the outer margins of the ice sheet to recede. Improvements in measuring the ice thickness in ice sheets is enabling better simulation of the flow in outlet glaciers, which is key to predicting the retreat of ice sheets into the future.Recently, a simulation of the effects of outlet glacier flow on ice sheet thickness coupled with improved data and comprehensive climate modeling for differing future climate scenarios has been used to estimate Greenland’s contribution to sea-level over the next millennium. Greenland could contribute 5–34 cm (2-13 inches) to sea-level by 2100 and 11–162 cm (4-64 inches) by 2200, with outlet glaciers contributing 19–40 % of the total mass loss. The analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, followed by ice dynamics. Uncertainties in ocean conditions play a minor role, particularly in the long term. Greenland will very likely become ice-free within a millennium without significant reductions in greenhouse gas emissions.Three visualizations of the evolution of the northeastern region of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios are shown below. Each scenario is described briefly in the caption under each visualization. Each of the three visualizations are provided with a date, colorbar and a distance scale as well as without. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008.The data sets used for these animations are the control (“CTRL”) simulations and were produced with the open-source Parallel Ice Sheet Model . All data sets for this study are publicly available at the NSF Arctic Data Center || ", "hits": 20 }, { "id": 4739, "url": "https://svs.gsfc.nasa.gov/4739/", "result_type": "Visualization", "release_date": "2019-07-24T00:00:00-04:00", "title": "Northwest Regional View of Three Simulated Greenland Ice Sheet Response Scenarios: 2008 - 2300", "description": "The Greenland Ice Sheet holds enough water to raise the world’s sea level by over 7 meters (23 feet). Rising atmosphere and ocean temperatures have led to an ice loss equivalent to over a centimeter increase in global mean sea-level between 1991 and 2015. Large outlet glaciers, rivers of ice moving to the sea, drain the ice from the interior of Greenland and cause the outer margins of the ice sheet to recede. Improvements in measuring the ice thickness in ice sheets is enabling better simulation of the flow in outlet glaciers, which is key to predicting the retreat of ice sheets into the future.Recently, a simulation of the effects of outlet glacier flow on ice sheet thickness coupled with improved data and comprehensive climate modeling for differing future climate scenarios has been used to estimate Greenland’s contribution to sea-level over the next millennium. Greenland could contribute 5–34 cm (2-13 inches) to sea-level by 2100 and 11–162 cm (4-64 inches) by 2200, with outlet glaciers contributing 19–40 % of the total mass loss. The analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, followed by ice dynamics. Uncertainties in ocean conditions play a minor role, particularly in the long term. Greenland will very likely become ice-free within a millennium without significant reductions in greenhouse gas emissions.Three visualizations of the evolution of the northwest region of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios are shown below. Each scenario is described briefly in the caption under each visualization. Each of the three visualizations are provided with a date, colorbar and a distance scale as well as without. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008.The data sets used for these animations are the control (“CTRL”) simulations and were produced with the open-source Parallel Ice Sheet Model . All data sets for this study are publicly available at the NSF Arctic Data Center || ", "hits": 26 }, { "id": 4721, "url": "https://svs.gsfc.nasa.gov/4721/", "result_type": "Visualization", "release_date": "2019-06-19T14:00:00-04:00", "title": "Three Simulated Greenland Ice Sheet Response Scenarios: 2008 - 2300", "description": "The Greenland Ice Sheet holds enough water to raise the world’s sea level by over 7 meters (23 feet). Rising atmosphere and ocean temperatures have led to an ice loss equivalent to over a centimeter increase in global mean sea-level between 1991 and 2015. Large outlet glaciers, rivers of ice moving to the sea, drain the ice from the interior of Greenland and cause the outer margins of the ice sheet to recede. Improvements in measuring the ice thickness in ice sheets is enabling better simulation of the flow in outlet glaciers, which is key to predicting the retreat of ice sheets into the future.Recently, a simulation of the effects of outlet glacier flow on ice sheet thickness coupled with improved data and comprehensive climate modeling for differing future climate scenarios has been used to estimate Greenland’s contribution to sea-level over the next millennium. Greenland could contribute 5–34 cm (2-13 inches) to sea-level by 2100 and 11–162 cm (4-64 inches) by 2200, with outlet glaciers contributing 19–40 % of the total mass loss. The analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, followed by ice dynamics. Uncertainties in ocean conditions play a minor role, particularly in the long term. Greenland will very likely become ice-free within a millennium without significant reductions in greenhouse gas emissions.Three visualizations of the evolution of the Jakobshavn region of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios are shown below. The camera zooms in slowly as the ice sheet retreats and pulls out to a view of the entire ice sheet in the year 2300. Each scenario is described briefly in the caption under each visualization. Each of the three visualizations are provided with a date, colorbar and a distance scale as well as without. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008.The data sets used for these animations are the control (“CTRL”) simulations and were produced with the open-source Parallel Ice Sheet Model (www.pism-docs.org). All data sets for this study are publicly available at https://arcticdata.io (doi:10.18739/A2Z60C21V). || ", "hits": 44 }, { "id": 4722, "url": "https://svs.gsfc.nasa.gov/4722/", "result_type": "Visualization", "release_date": "2019-06-19T14:00:00-04:00", "title": "Jakobshavn Regional View of Three Simulated Greenland Ice Sheet Response Scenarios: 2008 - 2300", "description": "The Greenland Ice Sheet holds enough water to raise the world’s sea level by over 7 meters (23 feet). Rising atmosphere and ocean temperatures have led to an ice loss equivalent to over a centimeter increase in global mean sea-level between 1991 and 2015. Large outlet glaciers, rivers of ice moving to the sea, drain the ice from the interior of Greenland and cause the outer margins of the ice sheet to recede. Improvements in measuring the ice thickness in ice sheets is enabling better simulation of the flow in outlet glaciers, which is key to predicting the retreat of ice sheets into the future.Recently, a simulation of the effects of outlet glacier flow on ice sheet thickness coupled with improved data and comprehensive climate modeling for differing future climate scenarios has been used to estimate Greenland’s contribution to sea-level over the next millennium. Greenland could contribute 5–34 cm (2-13 inches) to sea-level by 2100 and 11–162 cm (4-64 inches) by 2200, with outlet glaciers contributing 19–40 % of the total mass loss. The analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, followed by ice dynamics. Uncertainties in ocean conditions play a minor role, particularly in the long term. Greenland will very likely become ice-free within a millennium without significant reductions in greenhouse gas emissions.Three visualizations of the evolution of the Jakobshavn region of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios are shown below. Each scenario is described briefly in the caption under each visualization. Each of the three visualizations are provided with a date, colorbar and a distance scale as well as without. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008.The data sets used for these animations are the control (“CTRL”) simulations and were produced with the open-source Parallel Ice Sheet Model (www.pism-docs.org). All data sets for this study are publicly available at https://arcticdata.io (doi:10.18739/A2Z60C21V). || ", "hits": 36 }, { "id": 4727, "url": "https://svs.gsfc.nasa.gov/4727/", "result_type": "Visualization", "release_date": "2019-06-19T14:00:00-04:00", "title": "Greenland View of Three Simulated Greenland Ice Sheet Response Scenarios: 2008 - 2300", "description": "The Greenland Ice Sheet holds enough water to raise the world’s sea level by over 7 meters (23 feet). Rising atmosphere and ocean temperatures have led to an ice loss equivalent to over a centimeter increase in global mean sea-level between 1991 and 2015. Large outlet glaciers, rivers of ice moving to the sea, drain the ice from the interior of Greenland and cause the outer margins of the ice sheet to recede. Improvements in measuring the ice thickness in ice sheets is enabling better simulation of the flow in outlet glaciers, which is key to predicting the retreat of ice sheets into the future.Recently, a simulation of the effects of outlet glacier flow on ice sheet thickness coupled with improved data and comprehensive climate modeling for differing future climate scenarios has been used to estimate Greenland’s contribution to sea-level over the next millennium. Greenland could contribute 5–34 cm (2-13 inches) to sea-level by 2100 and 11–162 cm (4-64 inches) by 2200, with outlet glaciers contributing 19–40 % of the total mass loss. The analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, followed by ice dynamics. Uncertainties in ocean conditions play a minor role, particularly in the long term. Greenland will very likely become ice-free within a millennium without significant reductions in greenhouse gas emissions.Three visualizations of the evolution of the Greenland Ice Sheet between 2008 and 2300 based on three different climate scenarios are shown below. Each scenario is described briefly in the caption under each visualization. Each of the three visualizations are provided with a date and colorbar as well as without. The regions shown in a violet color are exposed areas of the Greenland bed that were covered by the ice sheet in 2008.The data sets used for these animations are the control (“CTRL”) simulations and were produced with the open-source Parallel Ice Sheet Model (www.pism-docs.org). All data sets for this study are publicly available at https://arcticdata.io (doi:10.18739/A2Z60C21V). || ", "hits": 113 }, { "id": 13162, "url": "https://svs.gsfc.nasa.gov/13162/", "result_type": "Produced Video", "release_date": "2019-03-29T13:00:00-04:00", "title": "Flying Alaskan Glaciers", "description": "Flying low over some of the most dramatic landscapes on the planet, a cadre of scientists and pilots have been measuring changes in Alaskan glaciers as part of NASA’s Operation IceBridge for almost a decade. The team has seen significant change in ice extent and thickness over that time. Data from the mission was used in a 2015 study that put numbers on the loss of Alaskan glaciers: 75 billion tons of ice every year from 1994 to 2013. Last summer, Chris Larsen and Martin Truffer, both of the University of Alaska Fairbanks, flew with University of Arizona's Jack Holt and University of Texas student Michael Christoffersen. || OIB_Alaska_Final.00010_print.jpg (1024x576) [109.9 KB] || OIB_Alaska_Final.00010_searchweb.png (320x180) [96.3 KB] || OIB_Alaska_Final.00010_thm.png (80x40) [6.8 KB] || OIB_Alaska_Final.mp4 (1920x1080) [939.1 MB] || YOUTUBE_1080_OIB_Alaska_Final_youtube_1080.mp4 (1920x1080) [977.3 MB] || OIB_Alaska_Final.webm (1920x1080) [76.9 MB] || OIB_Alaska_Final.en_US.srt [12.6 KB] || OIB_Alaska_Final.en_US.vtt [12.6 KB] || ", "hits": 32 }, { "id": 4572, "url": "https://svs.gsfc.nasa.gov/4572/", "result_type": "Visualization", "release_date": "2018-11-14T14:00:00-05:00", "title": "The Hiawatha Impact Crater", "description": "The series of visualizations below are derived from satellite imagery and radar sounding. They portray both the location and size of the 31-kilometer-wide impact crater beneath Hiawatha Glacier. They also portray the structure of the glacier ice that flows into and fills the crater.The Hiawatha impact crater was first suspected to exist in the summer of 2015, from examination of a compilation of Greenland's sub-ice topography radar measurements made by NASA over two decades. The visualizations of the subsurface shown below are derived from a spring 2016 airborne survey by Germany's Alfred Wegener Institute, using a new ultrawideband radar sounder developed by the Center for Remote Sensing of Ice Sheets at The University of Kansas. Subsequent helicopter visits to the deglaciated terrain in front of Hiawatha Glacier by scientists from the Natural History Museum in Denmark recovered sediment samples from the main river that discharges water from beneath Hiawatha Glacier, through the northwestern rim breach. Laboratory examination revealed that these sediment samples contained shocked quartz and elevated platinum-group-element concentrations, both signs that the sediment records evidence of the impact of an iron asteroid more than one kilometer wide. The Hiawatha impact crater is potentially one of the youngest large impact craters on Earth.In the visualizations below, the elevation of the topography of the bed, the ice surface and the radar curtains have been exaggerated ten times in order to better illustrate their structure. || ", "hits": 276 }, { "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": 4528, "url": "https://svs.gsfc.nasa.gov/4528/", "result_type": "Visualization", "release_date": "2016-12-12T14:30:00-05:00", "title": "Seasonal Speed Variation on Heimdal Glacier", "description": "The NASA/USGS Landsat 8 mission has allowed new views of the Earth’s glaciers. By tracking displacement of local surface features through the seasons on outlet glaciers from the large ice sheets, researchers from the University of Alaska, the University of Bristol, and the University of Colorado have been able to show that each glacier around Greenland has a unique pattern of flow variation through the seasons. Seasonal variations, seen in this animation on the lower 25 kilometers of Heimdal Glacier in southeast Greenland, are caused by a combination of processes. For Heimdal, the largest forcing for flow variation is likely the input of increasing amounts of surface melt water through the Spring and Summer, but there is also an interplay between calving of ice from the end of the glacier, flow acceleration as shown in the animation, and thinning of the ice due to the extra stretching from the faster flow. By measuring these changes in flow on seasonal timescales, scientists can develop a better understanding of what controls the flow of these glaciers where they meet the ocean. This understanding will improve our ability to anticipate flow responses of these systems in a warming climate. || ", "hits": 37 }, { "id": 4529, "url": "https://svs.gsfc.nasa.gov/4529/", "result_type": "Visualization", "release_date": "2016-12-12T14:30:00-05:00", "title": "Seasonal Glacier Velocity on the Heimdal Glacier with a pause", "description": "This visualization shows the seasonal ice velocity on the Heimdal Glacier in Greenland between October 2013 and October 2016. The color of the flow vectors represent the speed of the flow, with purple representing the slow moving ice and red showing the faster moving ice. This visualization includes a pause highlighting when the velocity is at a seasonal low and again when it reaches a seasonal high. The color scale is displayed in the lower left corner. || Seasonal_IceFlows_with_hold.1299_print.jpg (1024x576) [233.1 KB] || Seasonal_IceFlows_with_hold.1299_searchweb.png (320x180) [132.3 KB] || Seasonal_IceFlows_with_hold.1299_thm.png (80x40) [8.3 KB] || SeasonalIceVel_withHold_1080p_p30.mp4 (1920x1080) [30.7 MB] || SeasonalIceVel_withHold_720p30.mp4 (1280x720) [16.3 MB] || Seasonal_IceFlows_with_hold_1080p30.webm (1920x1080) [2.8 MB] || IceVel_withPause_comp (1920x1080) [0 Item(s)] || Seasonal_IceFlows_with_hold_2160p30_2.mp4 (3840x2160) [77.3 MB] || IceVel_withPause_comp (3840x2160) [0 Item(s)] || SeasonalIceVel_withHold_1080p_p30.mp4.hwshow [199 bytes] || ", "hits": 27 }, { "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": 11736, "url": "https://svs.gsfc.nasa.gov/11736/", "result_type": "Produced Video", "release_date": "2015-02-03T11:00:00-05:00", "title": "Dating Ice", "description": "Scientists create a 3-D map showing the age of the Greenland ice sheet. || cq-1280.jpg (1280x720) [331.2 KB] || cq-1920.jpg (1920x1080) [524.3 KB] || cq-1024.jpg (1024x576) [234.5 KB] || cq-1024_print.jpg (1024x576) [224.5 KB] || cq-1024_searchweb.png (320x180) [113.5 KB] || ", "hits": 48 }, { "id": 4249, "url": "https://svs.gsfc.nasa.gov/4249/", "result_type": "Visualization", "release_date": "2015-01-23T09:00:00-05:00", "title": "Greenland Ice Sheet Stratigraphy", "description": "The above movie shows the new 3D map of the age of the Greenland ice sheet, using a collage of live footage and animation to explain how scientists determined the age from data collected by ice-penetrating radar. The full script of the narration is available here. This video is also available on our YouTube channel. || GIS_age_structure.jpg (1024x576) [166.8 KB] || 4249_Greenland_Radiostratigraphy_MASTER.webmhd.webm (1080x606) [51.7 MB] || 4249_Greenland_Radiostratigraphy_MASTER_1280x720.wmv (1280x720) [115.8 MB] || 4249_Greenland_Radiostratigraphy_MASTER_appletv.m4v (960x540) [99.6 MB] || 4249_Greenland_Radiostratigraphy_MASTER_appletv_subtitles.m4v (960x540) [99.7 MB] || 4249_Greenland_Radiostratigraphy_MASTER_youtube_hq.mov (1920x1080) [450.8 MB] || 4249_Greenland_Radiostratigraphy_MASTER_ipod_lg.m4v (640x360) [40.0 MB] || 4249_Greenland_Radiostratigraphy.en_US.srt [4.7 KB] || 4249_Greenland_Radiostratigraphy.en_US.vtt [4.7 KB] || 4249_Greenland_Radiostratigraphy_MASTER_nasaportal.mov (640x360) [98.5 MB] || 4249_Greenland_Radiostratigraphy_MASTER_ipod_sm.mp4 (320x240) [21.5 MB] || 4249_Greenland_Radiostratigraphy_MASTER_prores.mov (1920x1080) [6.7 GB] || ", "hits": 278 }, { "id": 1007, "url": "https://svs.gsfc.nasa.gov/1007/", "result_type": "Visualization", "release_date": "1999-11-08T12:00:00-05:00", "title": "Another View of Snow Dunes", "description": "A close-up view of a field of snow dunes, then pulling back to show regions of the dunes across the continent. || Zoom-out of snow dunes region. || a001007.00095_print.png (720x480) [507.7 KB] || Snowdunes2_pre.jpg (320x240) [13.6 KB] || a001007_pre.jpg (320x242) [13.4 KB] || a001007.webmhd.webm (960x540) [6.5 MB] || a001007.dv (720x480) [90.2 MB] || a001007.mp4 (640x480) [4.8 MB] || Snowdunes2.qt (320x240) [2.5 MB] || a001007.mpg (352x240) [3.4 MB] || ", "hits": 11 } ] }