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    "results": [
        {
            "id": 4588,
            "url": "https://svs.gsfc.nasa.gov/4588/",
            "result_type": "Visualization",
            "release_date": "2017-10-06T00:00:00-04:00",
            "title": "Improvements in Groundwater and Soil Moisture Measurements Derived from the GRACE Mission",
            "description": "From space, we track water in the ground – whether it is a centimeter, a meter, or a kilometer below the surface. Around the world, NASA's GRACE satellites have provided unprecedented views of water storage in natural aquifers. These underground reserves are so massive that they affect Earth's gravity field. When their mass changes, the satellites detect the change in gravity. Droughts can affect deep groundwater stores when water users pump hundreds of billions of gallons out of their aquifers to compensate for the lack of rainfall – and GRACE can detect this change.This view from space has revolutionized our understanding of water stores beneath the surface. But scientists at NASA Goddard can combine GRACE data with sophisticated computer models to give decision makers in the continental US an otherwise unseen view, helping to trigger critical water conservation measures.These computer models help us decompose the GRACE signal to identify changes in both the shallow groundwater and the root zone where crops are actually drawing moisture to survive.  Stations on the ground provide a connect-the-dots picture. The vantage point from space – combined with modeling – provides a comprehensive view of how the drought evolved over time and ultimately ended.This constantly changing snapshot of shallow groundwater conditions is now used every week in the US Drought Monitor, the benchmark relied upon by decision makers at the local, state, and federal level.This visualization shows the global Terrestrial Water Storage Anomaly from GRACE data, and then highlights the contiguous United States to show groundwater anomaly. This more detailed view is made by assimilating GRACEwater storage data into a supercomputer model of the land surface.  The visualization dives into California, showing further detail by separating out the surface soil moisture (top 2 centimeters) and the root zone soil mositure (top 100 centimeters). || ",
            "hits": 45
        },
        {
            "id": 30479,
            "url": "https://svs.gsfc.nasa.gov/30479/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-11-12T13:00:00-05:00",
            "title": "Coastal Dead Zones",
            "description": "The size and number of marine dead zones—areas where the deep water is so low in dissolved oxygen that sea creatures can’t survive—have grown explosively in the past half-century. Yellow circles on this map show the location of observed eutrophic zones. Red dots show where hypoxic zones have been observed.It’s no coincidence that dead zones occur downriver of places where land is intensively used for agriculture. Some of the fertilizer we apply to crops is washed into streams and rivers. Fertilizer-laden runoff triggers explosive planktonic algae growth in coastal areas. The algae die and rain down into deep waters, where their remains are like fertilizer for microbes. The microbes decompose the organic matter, using up the oxygen. Mass killing of fish and other sea life often results.Satellites can observe changes in the way the ocean surface reflects and absorbs sunlight when the water holds a lot of particles of organic matter. Darker blues in this image show higher concentrations of particulate organic matter, an indication of the overly fertile waters that can culminate in dead zones. || ",
            "hits": 356
        },
        {
            "id": 10494,
            "url": "https://svs.gsfc.nasa.gov/10494/",
            "result_type": "Produced Video",
            "release_date": "2009-10-09T00:00:00-04:00",
            "title": "The Carbon Cycle",
            "description": "Carbon is the basic building block of life, and these unique atoms are found everywhere on Earth. Carbon makes up Earth's plants and animals, and is also stored in the ocean, the atmosphere, and the crust of the planet. A carbon atom could spend millions of years moving through Earth in a complex cycle. This conceptual animation provides an illustration of the various parts of the Carbon cycle. Purple arrows indicate the uptake of Carbon; yellow arrows indicate the release of Carbon. On land, plants remove carbon from the atmosphere through photosynthesis. Animals eat plants and either breath out the carbon, or it moves up the food chain. When plants and animals die and decay, they transfer carbon back to the soil. Moving offshore, the ocean takes up carbon through physical and biological processes. At the ocean's surface, carbon dioxide from the atmosphere dissolves into the water. Tiny marine plants called phytoplankton use this carbon dioxide for photosynthesis. Phytoplankton are the base of the marine food web. After animals eat the plants, they breathe out the carbon or pass it up the food chain. Sometimes phytoplankton die, decompose, and are recycled in the surface waters. Phytoplankton can also sink to the bottom of the ocean, where they become buried in marine sediment. Over long time scales, this process has made the ocean floor the largest reservoir of carbon on the planet. In a process called upwelling, currents bring cold water containing carbon up to the surface. As the water warms, the carbon is then be released as a gas back into the atmosphere, continuing the carbon cycle.  Carbon is found in the atmosphere as Carbon dioxide, which is a greenhouse gas. Greenhouse gases act like a blanket, and trap heat in the atmosphere. In the past two centuries, humans have increased atmospheric carbon dioxide by more than 30%, by burning fossil-fuels and cutting down forests. || ",
            "hits": 253
        },
        {
            "id": 20006,
            "url": "https://svs.gsfc.nasa.gov/20006/",
            "result_type": "Animation",
            "release_date": "2003-11-05T12:00:00-05:00",
            "title": "Carbon Cycle",
            "description": "The Carbon  Cycle - The carbon cycle on land, acted out here show a tree  taking in carbon dioxide from the atmosphere, and combined with water  and nutrients from the soil, growing. In the fall and winter, parts  of the growth die off and release some carbon back into the system.  At some point, the tree is no longer able to take in carbon and  begins to die. When that happens, all the carbon absorbed in its body  is released back into the cycle as it decomposes. Fire can accelerate  this, sending plumes of carbon-laden aerosols into the atmosphere, as  well as leaving carbon-rich ash deposits on the ground for further  decomposition and recycling. || ",
            "hits": 24
        }
    ]
}