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    "results": [
        {
            "id": 31099,
            "url": "https://svs.gsfc.nasa.gov/31099/",
            "result_type": "Hyperwall Visual",
            "release_date": "2020-02-05T00:00:00-05:00",
            "title": "A Changing Earth at Night (Regions)",
            "description": "NASA’s Black Marble products are also being used by scientists and decision-makers to monitor gradual changes driven by urbanization, out-migration, economic changes, and electrification. These images show the rapid electrification of India’s rural settlements in recent years. Huge swaths of northern India, relatively dark in 2012 night shots, are lit up in NASA’s Black Marble imagery from 2016. || NightLights.010_print.jpg (1024x576) [175.5 KB] || NightLights.010.png (5760x3240) [20.0 MB] || NightLights.010_searchweb.png (320x180) [101.2 KB] || NightLights.010_thm.png (80x40) [6.8 KB] || ",
            "hits": 293
        },
        {
            "id": 3509,
            "url": "https://svs.gsfc.nasa.gov/3509/",
            "result_type": "Visualization",
            "release_date": "2008-04-16T00:00:00-04:00",
            "title": "Las Vegas Growth from Landsat",
            "description": "This sequence of images from the earliest Landsat satellite to the present captures the dramatic growth of Las Vegas, Nevada. From 1973 to 2006, the population of Las Vegas grew from 358,000 to over 2 million. || ",
            "hits": 44
        },
        {
            "id": 3363,
            "url": "https://svs.gsfc.nasa.gov/3363/",
            "result_type": "Visualization",
            "release_date": "2006-07-10T00:00:00-04:00",
            "title": "The Lights of Earth: Full Spin in High Resolution",
            "description": "The Lights of Earth can be seen from space. Human-made lights highlight particularly developed or populated areas of the Earth's surface, including the seaboards of Europe, the eastern United States, and Japan. Many large cities are located near rivers or oceans so that they can exchange goods cheaply by boat. Particularly dark areas include the central parts of South America, Africa, Asia, and Australia. The 'Earth at Night' picture is actually a composite of hundreds of images made by the Defense Meteorological Satellite Program (DMSP).  DMSP currently operates four satellites carrying the Operational Linescan System (OLS) in low-altitude polar orbits. Three of these satellites record nighttime data. The DMSP-OLS has a unique capability to detect low levels of visible-near infrared (VNIR) radiance at night. With the OLS 'VIS' band data it is possible to detect clouds illuminated by moonlight, plus lights from cities, towns, industrial sites, gas flares, and ephemeral events such as fires and lightning-illuminated clouds. The Nighttime Lights of the World data set is compiled from the October 1994 - March 1995 DMSP nighttime data collected when moonlight was low. Using the OLS thermal infrared band, areas containing clouds were removed and the remaining area used in the time series.A lower resolution version of this same animation can be found  here. || ",
            "hits": 71
        },
        {
            "id": 3163,
            "url": "https://svs.gsfc.nasa.gov/3163/",
            "result_type": "Visualization",
            "release_date": "2005-05-23T12:00:00-04:00",
            "title": "United States Mean Population Center, 1790-2000 (WMS)",
            "description": "The mean center of population, traditionally referred to as the center of population, is provided for each census in the United States since 1790.  The mean center of population is the point at which an imaginary, flat, weightless, and rigid map of the United States would balance if weights of identical value were placed on it so that each weight represented the location of one person.  The mean center of population based on the 2000 census results is located in Phelps County, Missouri.  For a complete list of the mean center of population for each census since 1790, and for a more detailed description of how these values are calculated, see http://www.census.gov/geo/www/cenpop/calculate2k.pdf. || ",
            "hits": 34
        },
        {
            "id": 3164,
            "url": "https://svs.gsfc.nasa.gov/3164/",
            "result_type": "Visualization",
            "release_date": "2005-05-23T12:00:00-04:00",
            "title": "United States Median Center of Population, 1880-2000 (WMS)",
            "description": "The median center of population is calculated from the intersection of two median lines.  The first median line is the geographic line running north and south that divides the population into two equal halves, east and west.  The second median line is the geographic line running east and west that divides the population into two equal halves, north and south.  For the 2000 United States Census, the median center of population was located in Van Buren township, Daviess County, Indiana.  For a complete list of the median center of population for each census since 1880, and for a more detailed description of how these values are calculated, see (http://www.census.gov/geo/www/cenpop/calculate2k.pdf). || ",
            "hits": 24
        },
        {
            "id": 2912,
            "url": "https://svs.gsfc.nasa.gov/2912/",
            "result_type": "Visualization",
            "release_date": "2005-05-16T12:00:00-04:00",
            "title": "Population Density of the World, 1990-2015 (WMS)",
            "description": "This animation shows the population density of the world in the years 1990, 1995, 2000, as well as a population density estimated for the year 2015.  These figures have been adjusted to match United Nations totals.  The most dramatic differences in population are not readily visible in this animation because they are located in cities.  The maximum population density in 1990 was about 79,000 people per square kilometer, while the estimated maximum population density in 2015 will be about 236,000 people per square kilometer.  Developing areas in Africa, Latin America, and Asia change the most visibly. || ",
            "hits": 126
        },
        {
            "id": 2916,
            "url": "https://svs.gsfc.nasa.gov/2916/",
            "result_type": "Visualization",
            "release_date": "2004-02-16T12:00:00-05:00",
            "title": "Earth At Night (WMS)",
            "description": "This image of Earth's city lights was created with data from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). Originally designed to view clouds by moonlight, the OLS is also used to map the locations of permanent lights on the Earth's surface.The brightest areas of the Earth are the most urbanized, but not necessarily the most populated. (Compare western Europe with China and India.) Cities tend to grow along coastlines and transportation networks. Even without the underlying map, the outlines of many continents would still be visible. The United States interstate highway system appears as a lattice connecting the brighter dots of city centers. In Russia, the Trans-Siberian railroad is a thin line stretching from Moscow through the center of Asia to Vladivostok. The Nile River, from the Aswan Dam to the Mediterranean Sea, is another bright thread through an otherwise dark region.Even more than 100 years after the invention of the electric light, some regions remain thinly populated and unlit. Antarctica is entirely dark. The interior jungles of Africa and South America are mostly dark, but lights are beginning to appear there. Deserts in Africa, Arabia, Australia, Mongolia, and the United States are poorly lit as well (except along the coast), along with the boreal forests of Canada and Russia, and the great mountains of the Himalaya. || ",
            "hits": 150
        }
    ]
}