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        {
            "id": 13907,
            "url": "https://svs.gsfc.nasa.gov/13907/",
            "result_type": "Produced Video",
            "release_date": "2021-08-12T10:00:00-04:00",
            "title": "Go Now! Landsat & the Calypso Caper",
            "description": "During the summer of 1975, Jacques Cousteau and his divers helped NASA determine if Landsat could measure the depth of shallow ocean waters. The story of this NASA-led satellite bathymetry experiment unfolds through the photography and expedition documents preserved by David Lychenheim, the expedition’s communications engineer. Research done during that expedition determined that in certain conditions Landsat could measure depths up to 22 meters (72 feet), which gave birth to the field of satellite-derived bathymetry. This new technology enabled charts in clear water areas around the world to be revised, helping boats and deep-drafted supertankers avoid running aground on hazardous shoals or seamounts.Music: “Science of Life,” “Moving In Thought,” and “The Right Move” by Andrew Michael Britton [PRS] & David Stephen Goldsmith [PRS], “Midsummer” by Uwe Buschkotter [GEMA], “The Grand Opening” by Laurent Dury [SACEM], “Drifting Satellite” by Théo Boulenger [SACEM], “Man and Machine” by Larry Groupe [BMI], “A Little Optimism 1” by Joel Goodman [ASCAP], “Easy Does It” by Alchemist [SIAE], “Variations” by Stephan Sechi [ASCAP], “Bright and Playful” by Oscar Lo Brutto [PRS]; via Universal Production MusicComplete transcript available.Watch this video on the NASA Goddard YouTube channel. || 13907_Landsat_Cousteau_poster.png (1920x1080) [3.1 MB] || 13907_Landsat_Cousteau_poster_print.jpg (1024x576) [287.2 KB] || 13907_Landsat_Cousteau_poster_searchweb.png (320x180) [114.6 KB] || 13907_Landsat_Cousteau_poster_thm.png (80x40) [8.1 KB] || 13907_Landsat_Cousteau-pr.mov (1920x1080) [7.2 GB] || 13907_Landsat_Cousteau-yt.mp4 (1920x1080) [938.3 MB] || 13907_Landsat_Cousteau-tw.mp4 (1280x720) [301.1 MB] || 13907_Landsat_Cousteau-tw.webm (1280x720) [59.6 MB] || 13907_Landsat_Cousteau-captions.en_US.srt [11.3 KB] || 13907_Landsat_Cousteau-captions.en_US.vtt [10.8 KB] || ",
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        {
            "id": 3879,
            "url": "https://svs.gsfc.nasa.gov/3879/",
            "result_type": "Visualization",
            "release_date": "2013-10-01T00:00:00-04:00",
            "title": "Wind and Ocean Circulation shot for Dynamic Earth Dome Show",
            "description": "This visualization was created for the planetarium dome show film called Dynamic Earth. It is rendered with a fish-eye projection, called domemaster, which is why it looks circular. In a dome, the image fills the dome's hemisphere so that the parts near the bottom of the image are low and in front of the view, the top of the image is behind the viewer, and the left and right sides are to the left and right of the viewer.The camera slowly pushes in towards the Earth revealing global wind patterns. The wind patterns are from the MERRA computational model of the atomsphere. As the camera continues to push in, the winds fade away, revealing ocean currents which are driven, in part, by the winds. The ocean currents are from the ECCO-2 computational model of the oceans and ice. Only the higher speed ocean currents are shown. The camera moves around the Western Atlantic highlighting the Gulf stream from above and below. The camera finally emerges from beneath sea level and moves over to the Gulf of Mexico to examine the Loop Current.This shot is designed to seamlessly match to the end of the Earth/CME shot (animation id #3551.). Topographic features are exaggerated 20 times above water and 40 times below water. The exaggeration is primarily to allow the viewer to distinguish the depths of the flow fields.This visualization was shown in the \"VR Village\" at SIGGRAPH 2015. || ",
            "hits": 100
        },
        {
            "id": 11003,
            "url": "https://svs.gsfc.nasa.gov/11003/",
            "result_type": "Produced Video",
            "release_date": "2012-06-19T00:00:00-04:00",
            "title": "Excerpt from \"Dynamic Earth\"",
            "description": "A giant explosion of magnetic energy from the sun, called a coronal mass ejection, slams into and is deflected completely by the Earth's powerful magnetic field. The sun also continually sends out streams of light and radiation energy. Earth's atmosphere acts like a radiation shield, blocking quite a bit of this energy.Much of the radiation energy that makes it through is reflected back into space by clouds, ice and snow and the energy that remains helps to drive the Earth system, powering a remarkable planetary engine — the climate. It becomes the energy that feeds swirling wind and ocean currents as cold air and surface waters move toward the equator and warm air and water moves toward the poles — all in an attempt to equalize temperatures around the world.A jury appointed by the National Science Foundation (NSF) and Science magazine has selected \"Excerpt from Dynamic Earth\" as the winner of the 2013 NSF International Science and Engineering Visualization Challenge for the Video category. This animation will be highlighted in the February 2014 special section of Science and will be hosted on ScienceMag.org and NSF.govThis animation was selected for the Computer Animation Festival's Electronic Theater at the Association for Computer Machinery's Special Interest Group on Computer Graphics and Interactive Techniques (SIGGRAPH), a prestigious computer graphics and technical research forum. This is an excerpt from the fulldome, high-resolution show 'Dynamic Earth: Exploring Earth's Climate Engine.' The Dynamic Earth dome show was selected as a finalist in the Jackson Hole Wildlife Film Festival Science Media Awards under the category \"Best Immersive Cinema - Fulldome\". || ",
            "hits": 113
        },
        {
            "id": 3829,
            "url": "https://svs.gsfc.nasa.gov/3829/",
            "result_type": "Visualization",
            "release_date": "2011-05-10T00:00:00-04:00",
            "title": "Aquarius studies Ocean and Wind Flows",
            "description": "Aquarius is a focused satellite mission to measure global Sea Surface Salinity. During its nominal three-year mission, Aquarius will map the salinity at the ocean surface to improve our understanding of Earth's water cycle and ocean circulation. Aquarius will help scientists see how freshwater moves between the ocean and the atmosphere. It will monitor changes in the water cycle due to rainfall, evaporation, ice melting, and river runoff. Aquarius will also demonstrate a measurement capability that can be applied to future operational missions. Ocean circulation is driven in large part by changes in water density, which is determined by temperature and salinity. Cold, high-salinity water masses sink and trigger the ocean's \"themalhaline circulation\" - the surface and deep currents that distribute solar energy to regulate Earth's climate. By measuring salinity, Aquarius will provide new insight into this global process. Aquarius' measurements of ocean salinity will provide a new perspective on the ocean and its links to climate, greatly expanding upon limited past measurements. Aquarius salinity data - combined with data from other sensors that measure sea level, ocean color, temperature, winds and rainfall will give us a much clearer picture of how the ocean works, how it is linked to climate, and how it may respond to climate change.Aquarius will provide information that will help improve predictions of future climate trends and short-term climate events such as El Niño and La Niña. Precise salinity measurements from Aquarius will reveal changes in patterns of global precipitation and evaporation and show how these changes may affect ocean circulation. || ",
            "hits": 261
        },
        {
            "id": 3816,
            "url": "https://svs.gsfc.nasa.gov/3816/",
            "result_type": "Visualization",
            "release_date": "2011-01-21T00:00:00-05:00",
            "title": "The Thermohaline Circulation - The Great Ocean Conveyor Belt - Stereoscopic Version",
            "description": "The oceans are mostly composed of warm salty water near the surface over cold, less salty water in the ocean depths. These two regions don't mix except in certain special areas. The ocean currents, the movement of the ocean in the surface layer, are driven primarily by the wind. In certain areas near the polar oceans, the colder surface water also gets saltier due to evaporation or sea ice formation. In these regions, the surface water becomes dense enough to sink to the ocean depths. This pumping of surface water into the deep ocean forces the deep water to move horizontally until it can find an area on the world where it can rise back to the surface and close the current loop. This usually occurs in the equatorial ocean, mostly in the Pacific and Indian Oceans. This very large, slow current is called the thermohaline circulation because it is caused by temperature and salinity (haline) variations.This animation shows one of the major regions where this pumping occurs, the North Atlantic Ocean around Greenland, Iceland, and the North Sea. The surface ocean current brings new water to this region from the South Atlantic via the Gulf Stream and the water returns to the South Atlantic via the North Atlantic Deep Water current. The continual influx of warm water into the North Atlantic polar ocean keeps the regions around Iceland and southern Greenland generally free of sea ice year round.The animation also shows another feature of the global ocean circulation: the Antarctic Circumpolar Current. The region around latitude 60 south is the the only part of the Earth where the ocean can flow all the way around the world with no obstruction by land. As a result, both the surface and deep waters flow from west to east around Antarctica. This circumpolar motion links the world's oceans and allows the deep water circulation from the Atlantic to rise in the Indian and Pacific Oceans, thereby closing the surface circulation with the northward flow in the Atlantic.The color on the world's ocean's at the beginning of this animation represents surface water density, with dark regions being most dense and light regions being least dense (see the animation Sea Surface Temperature, Salinity and Density). The depths of the oceans are highly exaggerated to better illustrate the differences between the surface flows and deep water flows. The actual flows in this model are based on current theories of the thermohaline circulation rather than actual data. The thermohaline circulation is a very slow moving current that can be difficult to distinguish from general ocean circulation. Therefore, it is difficult to measure or simulate.This is a stereoscopic version of the original visualziation. || ",
            "hits": 282
        },
        {
            "id": 3652,
            "url": "https://svs.gsfc.nasa.gov/3652/",
            "result_type": "Visualization",
            "release_date": "2009-10-09T13:24:00-04:00",
            "title": "Sea Surface Temperature, Salinity and Density",
            "description": "Sea Surface TemperatureThe oceans of the world are heated at the surface by the sun, and this heating is uneven for many reasons. The Earth's axial rotation, revolution about the sun, and tilt all play a role, as do the wind-driven ocean surface currents. The first animation in this group shows the long-term average sea surface temperature, with red and yellow depicting warmer waters and blue depicting colder waters. The most obvious feature of this temperature map is the variation of the temperature by latitude, from the warm region along the equator to the cold regions near the poles. Another visible feature is the cooler regions just off the western coasts of North America, South America, and Africa. On these coasts, winds blow from land to ocean and push the warm water away from the coast, allowing cooler water to rise up from deeper in the ocean. || ",
            "hits": 870
        },
        {
            "id": 3658,
            "url": "https://svs.gsfc.nasa.gov/3658/",
            "result_type": "Visualization",
            "release_date": "2009-10-08T00:00:00-04:00",
            "title": "The Thermohaline Circulation - The Great Ocean Conveyor Belt",
            "description": "The oceans are mostly composed of warm salty water near the surface over cold, less salty water in the ocean depths. These two regions don't mix except in certain special areas. The ocean currents, the movement of the ocean in the surface layer, are driven mostly by the wind. In certain areas near the polar oceans, the colder surface water also gets saltier due to evaporation or sea ice formation. In these regions, the surface water becomes dense enough to sink to the ocean depths. This pumping of surface water into the deep ocean forces the deep water to move horizontally until it can find an area on the world where it can rise back to the surface and close the current loop. This usually occurs in the equatorial ocean, mostly in the Pacific and Indian Oceans. This very large, slow current is called the thermohaline circulation because it is caused by temperature and salinity (haline) variations.This animation shows one of the major regions where this pumping occurs, the North Atlantic Ocean around Greenland, Iceland, and the North Sea. The surface ocean current brings new water to this region from the South Atlantic via the Gulf Stream and the water returns to the South Atlantic via the North Atlantic Deep Water current. The continual influx of warm water into the North Atlantic polar ocean keeps the regions around Iceland and southern Greenland mostly free of sea ice year round.The animation also shows another feature of the global ocean circulation: the Antarctic Circumpolar Current. The region around latitude 60 south is the the only part of the Earth where the ocean can flow all the way around the world with no land in the way. As a result, both the surface and deep waters flow from west to east around Antarctica. This circumpolar motion links the world's oceans and allows the deep water circulation from the Atlantic to rise in the Indian and Pacific Oceans and the surface circulation to close with the northward flow in the Atlantic.The color on the world's ocean's at the beginning of this animation represents surface water density, with dark regions being most dense and light regions being least dense (see the animation Sea Surface Temperature, Salinity and Density). The depths of the oceans are highly exaggerated to better illustrate the differences between the surface flows and deep water flows. The actual flows in this model are based on current theories of the thermohaline circulation rather than actual data. The thermohaline circulation is a very slow moving current that can be difficult to distinguish from general ocean circulation. Therefore, it is difficult to measure or simulate. || ",
            "hits": 261
        },
        {
            "id": 2630,
            "url": "https://svs.gsfc.nasa.gov/2630/",
            "result_type": "Visualization",
            "release_date": "2002-08-20T12:30:00-04:00",
            "title": "Looking Down at the Earth's Ocean Floor from Space",
            "description": "Using a combination of different data sets, scientists are able to see what the Earth would look like if it had no oceans. || a002630.00100_print.png (720x480) [490.0 KB] || a002630_pre.jpg (320x240) [8.4 KB] || a002630.webmhd.webm (960x540) [29.9 MB] || a002630.dv (720x480) [586.1 MB] || a002630.mpg (320x240) [46.0 MB] || ",
            "hits": 67
        }
    ]
}