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And scientists discovered a ridge that splits Antarctica from east to west. Explore the visualizations below to see the new benchmark map scientists can use to study the extent and speed of changes to the largest ice sheet in the world. || ", "release_date": "2011-08-25T00:00:00-04:00", "update_date": "2023-05-03T13:53:40.571944-04:00", "main_image": { "id": 483992, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003849/antarctica_flows_1_00120_1024x576.jpg", "filename": "antarctica_flows_1_00120_1024x576.jpg", "media_type": "Image", "alt_text": "A new map changes our understanding of how ice flows across Antarctica.", "width": 1024, "height": 576, "pixels": 589824 }, "main_video": { "id": 483999, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003849/3848_Differentially_scaled_ice_velocity-MASTERS_high.mp4", "filename": "3848_Differentially_scaled_ice_velocity-MASTERS_high.mp4", "media_type": "Movie", "alt_text": "Slow, interior flows have been sped up to make them more visible. 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This video is also available on our YouTube channel.
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separate regions of ice moving toward different parts of the coastline.", "width": 1617, "height": 1213, "pixels": 1961421 } }, { "id": 328814, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 484015, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003849/580873main_antarctica20110818-43_1024x576.jpg", "filename": "580873main_antarctica20110818-43_1024x576.jpg", "media_type": "Image", "alt_text": "Black lines mark continental ridges that separate regions of ice moving toward different parts of the coastline.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 328815, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 484016, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003849/580873main_antarctica20110818-43_1024x576_web.png", "filename": "580873main_antarctica20110818-43_1024x576_web.png", "media_type": "Image", "alt_text": "Black lines mark continental ridges that separate regions 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Rignot", "employer": "NASA/JPL CalTech" }, { "name": "Bernd Scheuchl", "employer": "University of California, Irvine" } ] }, { "role": "Project support", "people": [ { "name": "Jeremie Mouginot", "employer": "University of California, Irvine" } ] }, { "role": "Writer", "people": [ { "name": "Patrick Lynch", "employer": "Wyle Information Systems" } ] } ], "missions": [], "series": [], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Earth" ], "keywords": [ "App" ], "recommended_pages": [], "related": [ { "id": 11015, "url": "https://svs.gsfc.nasa.gov/11015/", "page_type": "Produced Video", "title": "Data Gazing", "description": "A year ago today we launched NASA Visualization Explorer, an app designed to deliver captivating illustrations grounded in data gathered by cutting-edge NASA spacecraft. After producing more than 100 stories our goal remains the same: Put the science first and let data visualization bring into focus the natural events and changes taking place on Earth and beyond. But sometimes we just want to sit back, take in the amazing images and let our minds wander. This is one of those moments. The video highlights some of the best illustrations from this year's stories. As for what's coming out in year two—keep looking. You never know what you'll see. || ", "release_date": "2012-07-26T00:00:00-04:00", "update_date": "2023-05-03T13:52:53.222945-04:00", "main_image": { "id": 473843, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011000/a011015/Mosaic_1024x576.jpg", "filename": "Mosaic_1024x576.jpg", "media_type": "Image", "alt_text": "Exploring the universe bit by bit.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 3848, "url": "https://svs.gsfc.nasa.gov/3848/", "page_type": "Visualization", "title": "NASA Research Leads to First Complete Map of Antarctic Ice Flow", "description": "This animation shows the motion of ice in Antarctica as measured by satellite data from CSA, JAXA and ESA processed by a NASA Research Team at UC Irvine. The background image from Landsat (visible imagery) is progressively replaced by a map of ice velocity color coded on a logarithmic scale, with values varying from 1 m/yr (brown to green) to 3,000 m/yr (green to blue and red). The animation does not show where ice is melting but how ice is naturally transported from the interior regions where it accumulates from snowfall to the coastal regions where it is discharged into the ocean as tabular icebergs and ice-shelf melt water. For the purpose of the animation, we are representing hundreds to thousands of years of motion. In the first animation, the dynamic range of the flow has been compressed, with slower flows scaled up in velocity to make visible how the flows feed from the interior of the continent. In the second, the flows speeds are in scale to each other.The result illustrates that zones of enhanced motion take their source far into the interior regions of Antarctica, at the foothills of the ridges formed by the ice tops of the continent. This pattern of motion has never been observed on that scale before. These observations have vast implications on our understanding of the flow of ice sheets and how they might respond to climate change in the future and contribute to sea level change. || ", "release_date": "2011-08-18T12:00:00-04:00", "update_date": "2024-04-28T22:03:46.568033-04:00", "main_image": { "id": 484047, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003848/antarctica_flows_1_00200.jpg", "filename": "antarctica_flows_1_00200.jpg", "media_type": "Image", "alt_text": "Differentially-scaled ice velocity ", "width": 1920, "height": 1080, "pixels": 2073600 } } ], "sources": [], "products": [ { "id": 14116, "url": "https://svs.gsfc.nasa.gov/14116/", "page_type": "Produced Video", "title": "Two Scientists Have a Frank and Honest Discussion about Antarctica", "description": "NASA Glaciologists Kelly Brunt and Alex Gardner discuss the history, challenges and evolution of mapping the Antarctic continent and what it means for science and society. || ", "release_date": "2022-03-18T00:00:00-04:00", "update_date": "2023-05-03T11:44:17.466414-04:00", "main_image": { "id": 372527, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014100/a014116/TwoSci_thumb.png", "filename": "TwoSci_thumb.png", "media_type": "Image", "alt_text": "Music: \"Man vs. Clock,\" \"Curious,\" \"Transitions,\" \"Phosphorus,\" \"Hypervelocity,\" \"Double Agent,\" \"Bloom,\" \"Mirroring Thought,\" Universal Production Music.This video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by pond5.com, Brooke Medley, Helen Millman, Michael Wethington, Robert Bindschadler, Kelly Brunt, The National Science Foundation, and The National Reconnaissance Office, and is obtained through permission and may not be excised or remixed in other products. Specific details on stock footage may be found here. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.html.Complete transcript available.Notes on footage:00:00-00:06; 00:32-00:38: Provided by Michael Wethington00:07-00:13; 09:07-09:15: Provided by pond5.com02:06-02:14: Provided by Robert Bindschadler02:16-02:18; 06:26-06:30: Provided by Brooke Medley05:02-05:07: Provided by Helen Millman06:30-06:46; 07:04-07:08: Provided by the National Science Foundation07:11-08:15: Provided by the National Reconnaissance Office08:29-08:53: Provided by Kelly Brunt", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 13600, "url": "https://svs.gsfc.nasa.gov/13600/", "page_type": "Produced Video", "title": "NASA Mission Maps 16 Years of Ice Loss", "description": "Using the most advanced Earth-observing laser instrument NASA has ever flown in space, scientists have made precise, detailed measurements of how the elevation of the Greenland and Antarctic ice sheets have changed over 16 years. 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