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This video is also available on our YouTube channel.
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This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 437623, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1099377, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_4k_1080p30_2.mp4.hwshow", "filename": "REMA_comp_04_4k_1080p30_2.mp4.hwshow", "media_type": "HyperwallShow", "alt_text": "", "width": 0, "height": 0, "pixels": null } } ], "extra_data": {} }, { "id": 315099, "url": "https://svs.gsfc.nasa.gov/4478/#media_group_315099", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "The Reference Elevation Model of Antarctica (REMA) provides the first, high resolution (8-meter) terrain map of nearly the entire continent.

REMA is constructed from hundreds of thousands of individual stereoscopic Digital Elevation Models (DEM) extracted from pairs of submeter (0.32 to 0.5 m) resolution DigitalGlobe satellite imagery, including data from WorldView-1, WorldView-2, and WorldView-3, and a small number from GeoEye-1, acquired between 2009 and 2017, with most collected in 2015 and 2016, over the austral summer seasons (mostly December to March).

Each individual DEM was vertically registered to satellite altimetry measurements from Cryosat-2 and ICESat, resulting in absolute uncertainties of less than 1 m over most of its area, and relative uncertainties of decimeters.

This visualization compares the spatial resolution of REMA with DEM data from RADARSAT.
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3240, "pixels": 18662400 } } ], "extra_data": {} }, { "id": 315104, "url": "https://svs.gsfc.nasa.gov/4478/#media_group_315104", "widget": "Single image", "title": "", "caption": "", "description": "High resolution still image of REMA", "items": [ { "id": 213838, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 372311, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_hw_04150_print.jpg", "filename": "REMA_comp_04_hw_04150_print.jpg", "media_type": "Image", "alt_text": "High resolution still image of REMA", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 213837, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 372321, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_hw_04150.tif", "filename": "REMA_comp_04_hw_04150.tif", "media_type": "Image", "alt_text": "High resolution still image of REMA", "width": 5760, "height": 3240, "pixels": 18662400 } } ], "extra_data": {} }, { "id": 315105, "url": "https://svs.gsfc.nasa.gov/4478/#media_group_315105", "widget": "Single image", "title": "", "caption": "", "description": "High resolution still image of REMA", "items": [ { "id": 213840, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 372323, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_hw_09460_print.jpg", "filename": "REMA_comp_04_hw_09460_print.jpg", "media_type": "Image", "alt_text": "High resolution still image of REMA", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 213839, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 372322, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_hw_09460.tif", "filename": "REMA_comp_04_hw_09460.tif", "media_type": "Image", "alt_text": "High resolution still image of REMA", "width": 5760, "height": 3240, "pixels": 18662400 } } ], "extra_data": {} }, { "id": 315106, "url": "https://svs.gsfc.nasa.gov/4478/#media_group_315106", "widget": "Single image", "title": "", "caption": "", "description": "High resolution still image of REMA (elevation) with LIMA (imagery) ", "items": [ { "id": 213842, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 372325, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_hw_09700_print.jpg", "filename": "REMA_comp_04_hw_09700_print.jpg", "media_type": "Image", "alt_text": "High resolution still image of REMA (elevation) with LIMA (imagery) ", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 213841, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 372324, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004400/a004478/REMA_comp_04_hw_09700.tif", "filename": "REMA_comp_04_hw_09700.tif", "media_type": "Image", "alt_text": "High resolution still image of REMA (elevation) with LIMA (imagery) ", "width": 5760, "height": 3240, "pixels": 18662400 } } ], "extra_data": {} }, { "id": 372630, "url": "https://svs.gsfc.nasa.gov/4478/#media_group_372630", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "
", "items": [], "extra_data": {} }, { "id": 315107, "url": "https://svs.gsfc.nasa.gov/4478/#media_group_315107", "widget": "Video player", "title": "", "caption": "", "description": "360 (spherical) version of the visualization

This video is also available on our YouTube channel.
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Note: The YouTube video above is an interactive 360 degree video. If you are viewing this video on your computer, click and drag in the window to change the camera view. If you are viewing this video on your phone or tablet, open the video in the YouTube video app and change the view by moving/rotating your device. This YouTube video is also compatible with Google Cardboard VR viewers. ", "items": [], "extra_data": {} } ], "studio": "svs", "funding_sources": [ "ESE" ], "credits": [ { "role": "Visualizer", "people": [ { "name": "Kel Elkins", "employer": "USRA" }, { "name": "Greg Shirah", "employer": "NASA/GSFC" }, { "name": "Lori Perkins", "employer": "NASA/GSFC" } ] }, { "role": "Scientist", "people": [ { "name": "Paul Morin None", "employer": "University of Minnesota" } ] } ], "missions": [], "series": [], "tapes": [], "papers": [], "datasets": [ { "name": "Reference Elevation Model of Antarctica - 8m", "common_name": "REMA", "platform": null, "sensor": null, "type": "Data Compilation", "organizations": [ "The Polar Geospatial Center (PGC)" ], "description": "High resolution, time-stamped Digital Surface Model (DSM) of Antarctica at 8-meter spatial resolution", "credit": "DEMs provided by the Byrd Polar and Climate Research Center and the Polar Geospatial. Computer time provided through a Blue Waters Innovation Initiative. DEMs produced using data from DigitalGlobe, Inc.", "url": "", "date_range": null } ], "nasa_science_categories": [ "Earth" ], "keywords": [ "360", "Antarctic", "Earth Science", "Hyperwall", "Land Surface", "Terrain Elevation", "topography" ], "recommended_pages": [], "related": [], "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 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [] }