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    "title": "PACE and SWOT",
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    "release_date": "2024-12-01T00:00:00-05:00",
    "update_date": "2025-09-24T08:28:08.775918-04:00",
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            "description": "The ocean is an engine that drives Earth’s weather patterns and climate and sustains a substantial portion of life on the planet. A new visualization based on data from two recently launched missions — NASA’s Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) and the international Surface Water and Ocean Topography (SWOT) satellites — gives a peek into the heart of that engine.<br><br>The visualization above starts by depicting the orbits of SWOT (orange) and PACE (light blue), then zooms into the North Atlantic Ocean. The first data to appear was acquired by PACE on Aug. 8. It reveals concentrations of chlorophyll-a, a vital pigment for photosynthesis in plants and phytoplankton. Light green and yellow indicate higher concentrations of chlorophyll-a, while blue signals lower concentrations.<br><br>Next is sea surface height data from SWOT, taken during several passes over the same region between Aug. 7 and 8. Dark blue represents heights that are lower than the mean sea surface height, while dark orange and red represent heights higher than the mean. The contour lines that remain once the color fades from the SWOT data indicate areas of the ocean with the same height, much like the lines on a topographic map indicate areas with the same elevation.<br><br>The underlying PACE data then cycles through several groups of phytoplankton, starting with picoeukaryotes. Lighter green indicates greater concentrations of this group. The final two groups are cyanobacteria — some of the smallest and most abundant phytoplankton in the ocean — called Prochlorococcus and Synechococcus. For Prochlorococcus, lighter raspberry colors represent higher concentrations. Lighter teal colors for Synechococcus signal greater amounts of the cyanobacteria.<br><br>The visualization shows that higher phytoplankton concentrations on Aug. 8 tended to coincide with areas of lower water height. Eddies that spin counterclockwise in the Northern Hemisphere tend to draw water away from their center. This results in relatively lower sea surface heights in the center that draw up cooler, nutrient-rich water from the deep ocean. These nutrients act like fertilizer, which can boost phytoplankton growth in sunlit waters at the surface.<br><br>Overlapping SWOT and PACE data enables a better understanding of the connections between ocean dynamics and aquatic ecosystems, which can help improve the management of resources such as fisheries, since phytoplankton form the base of most food chains in the sea. Integrating these kinds of datasets also helps to improve calculations of how much carbon is exchanged between the atmosphere and the ocean. This, in turn, can indicate whether regions of the ocean that absorb excess atmospheric carbon are changing.<br><br>A collaboration between NASA and the French space agency CNES (Centre National d’Études Spatiales), the SWOT satellite launched in December 2022 to measure the height of nearly all water on Earth’s surface. It is providing one of the most detailed, comprehensive views yet of the planet’s ocean and its freshwater lakes, reservoirs, and rivers.<br><br>Launched in February 2024, NASA’s PACE satellite detects and measures the distribution of phytoplankton communities in the ocean. It also provides data on the size, amount, and type of tiny particles called aerosols in Earth’s atmosphere, as well as the height, thickness, and opacity of clouds.",
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    "keywords": [
        "Chlorophyll",
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        {
            "id": 14990,
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            "page_type": "Produced Video",
            "title": "SWOT Mission Unlocks a New View of Our Waterways",
            "description": "Explore how rivers move, change, and sustain life across the planet.Using data from the SWOT (Surface Water and Ocean Topography) mission, jointly developed by the NASA/JPL and the Centre National d'Études Spatiales with contributions from the Canadian Space Agency and the United Kingdom Space Agency, scientists can now measure rivers continuously and across the entire globe for the first time in human history.From the Mississippi River to the Amazon, these observations reveal how rivers flow, how they change over time, and how they support ecosystems, economies, and communities worldwide like never before.SWOT Mission Website || ",
            "release_date": "2026-03-18T13:00:00-04:00",
            "update_date": "2026-03-18T14:35:03-04:00",
            "main_image": {
                "id": 1202601,
                "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014990/20260305_SVS14990_SWOT_RIVERS_DATA_VIS_3840x2160_60fps_ENGLISH_FINALCUT_GAW.00001_searchweb.png",
                "filename": "20260305_SVS14990_SWOT_RIVERS_DATA_VIS_3840x2160_60fps_ENGLISH_FINALCUT_GAW.00001_searchweb.png",
                "media_type": "Image",
                "alt_text": "SWOT Mission Unlocks a New View of Our Waterways (3840x2160, 60fps)Universal Production Music:Wander Instrumental by the Music YardSunny Morning Instrumental by Vigne WintrebertMagical Mushrooms Instrumental by DoddyBoard Game Instrumental by de Chaumont DuboisThis video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by Tridant Sensing Inc, U.S. Forest Service, Department of War and Pond5 is obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://www.nasa.gov/nasa-brand-center/images-and-media/Complete transcript available.Watch this video on the NASA Goddard Video YouTube channel",
                "width": 320,
                "height": 180,
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