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        {
            "id": 5572,
            "url": "https://svs.gsfc.nasa.gov/5572/",
            "result_type": "Visualization",
            "release_date": "2025-08-08T14:00:02-04:00",
            "title": "GEOS Aerosols",
            "description": "Aerosols are tiny solid or liquid particles that float in the atmosphere and can travel long distances, affecting air quality and visibility far from their sources. This visualization covers the period from August 1 to September 14, 2024, and is based on NASA's Goddard Earth Observing System (GEOS) model, which delivers realistic, high-resolution weather and aerosol data that enable customized environmental prediction and advances in AI research.",
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        {
            "id": 5217,
            "url": "https://svs.gsfc.nasa.gov/5217/",
            "result_type": "Visualization",
            "release_date": "2024-12-09T10:00:00-05:00",
            "title": "Northern California Fires in September 2020",
            "description": "This visualization shows the lightning over California on August 16 and 17, 2020 that caused 38 separate fires to ignite. These eventually combined into the August  Complex fire, the first recorded gigafire in California history, which burned until November 12 consuming 1,614 square miles (4,180 square kilometers). As the lightning fades, a series of images shows the smoke emanating from the fires on September 8 of that year. The visible smoke is followed by a series showing the Aerosol Optical Depth (a unitless quantitative metric of how much smoke is present in the atmosphere) as the smoke particles were transported across the Western US and Canada over a 10 day period. || geoxo_fires_v049_2024-02-21_0939.04321_print.jpg (1024x576) [185.9 KB] || geoxo_fires_v049_2024-02-21_0939.04321_searchweb.png (320x180) [78.6 KB] || geoxo_fires_v049_2024-02-21_0939.04321_thm.png (80x40) [5.6 KB] || geoxo_fires_v049_2024-02-21_0939_p30_1080p30.mp4 (1920x1080) [101.5 MB] || geoxo_fires_v049_2024-02-21_0939_1080p60.mp4 (1920x1080) [110.3 MB] || composite (3840x2160) [0 Item(s)] || composite (3840x2160) [0 Item(s)] || geoxo_fires_v049_2024-02-21_0939_2160p60.mp4 (3840x2160) [333.3 MB] || geoxo_fires_v049_2024-02-21_0939_p30_2160p30.mp4 (3840x2160) [322.9 MB] || geoxo_fires_v049_2024-02-21_0939_p30_2160p30.mp4.hwshow || ",
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        {
            "id": 4582,
            "url": "https://svs.gsfc.nasa.gov/4582/",
            "result_type": "Visualization",
            "release_date": "2017-07-27T18:00:00-04:00",
            "title": "Aerosol Optical Thickness Updating Forecast",
            "description": "The atmosphere is made up of gases like oxygen, nitrogen, and water vapor, but it also contains tiny particles called aerosols. Aerosols come from both natural and human sources and include things like sea salt, dust, soot, and sulfates. Aerosols often contribute to air pollution and poor visibility. Once they are in the atmosphere, they can travel long distances, affecting air quality far from their source. Aerosols also absorb or reflect energy (light), influencing temperatures in the atmosphere and on the ground. Satellites measure aerosols by how much light can pass through them. A thick layer of aerosols will block the ground from view, while a thin layer allows enough light through to see the ground. The measurement is called aerosol optical thickness.The GEOS model is built on satellite data and provides a forecast of aerosol optical thickness (among other things). This animation shows a daily updated 10-day forecast of aerosol optical thickness from GEOS. The date and timestamp are in the lower left corner. In general, brighter colors are thick aerosols, while dull darker colors are thin aerosols. Blue represents sea salt (sea salt extinction aerosol optical thickness, 550 nm). Winds blowing across the ocean kicks up ocean spray, which includes sea salt. In the animation, pale blue to white colors reflect stormy conditions. Individual large storms like tropical cyclones (hurricanes, typhoons) are visible as swirling circles of thick sea salt. Red represents dust (dust extinction aerosol optical thickness, 550 nm). The Saharan Desert of northern Africa is the largest source of dust, but dust can be seen across the globe. Saharan dust often interacts with tropical cyclones.Green represents the sum of aerosol optical thickness for organic carbon, black carbon, and sulfate. Organic and black carbon come from burning biomass or fossil fuels. Sources include fires, power plants, vehicles, and other combustion engines that run on fossil fuel. Sulfate particles come mostly from burning fossil fuels, but also from volcanoes. || gmao_aerosols_print.jpg (1024x576) [201.6 KB] || gmao_aerosols_searchweb.png (320x180) [108.3 KB] || gmao_aerosols.00001_thm.png (80x40) [7.0 KB] || gmao_aerosols.mp4 (1920x962) [16.2 MB] || gmao_aerosols.webm (1920x962) [1.5 MB] || latest-wdates (2239x1123) [0 Item(s)] || latest-nodates (2239x1123) [0 Item(s)] || gmao_aerosols.mp4.hwshow [191 bytes] || ",
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        {
            "id": 12302,
            "url": "https://svs.gsfc.nasa.gov/12302/",
            "result_type": "Produced Video",
            "release_date": "2016-07-13T00:00:00-04:00",
            "title": "Aerosol Optical Thickness, MODIS, 2000-2016",
            "description": "Aerosol optical depth from Terra/MODIS, 1-month composite.In the maps shown here, dark brown pixels show high aerosol concentrations, while tan pixels show lower concentrations, and light yellow areas show little or no aerosols. Black shows where the sensor could not make its measurement.Aerosol optical depth is the degree to which aerosols prevent the transmission of light by absorption or scattering of light. || MODIS_Aerosol_Optical_Depth_youtube_hq.00001_print.jpg (1024x512) [184.9 KB] || MODIS_Aerosol_Optical_Depth_youtube_hq.00001_searchweb.png (320x180) [92.7 KB] || MODIS_Aerosol_Optical_Depth_youtube_hq.00001_thm.png (80x40) [6.7 KB] || MODIS_Aerosol_Optical_Depth.webm (960x540) [42.2 MB] || 3600x1800_2x1_30p (3600x1800) [16.0 KB] || GSFC_20160713_MODIS_m12302_Aerosol.en_US.vtt [64 bytes] || MODIS_Aerosol_Optical_Depth_large.mp4 (3600x1800) [233.1 MB] || MODIS_Aerosol_Optical_Depth_youtube_hq.mov (3600x1800) [511.0 MB] || MODIS_Aerosol_Optical_Depth_prores720.mov (1280x720) [1.7 GB] || MODIS_Aerosol_Optical_Depth_prores.mov (3600x1800) [11.1 GB] || ",
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        },
        {
            "id": 30381,
            "url": "https://svs.gsfc.nasa.gov/30381/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-24T12:00:00-04:00",
            "title": "Monthly Aerosol Optical Thickness (Terra/MODIS)",
            "description": "Tiny solid and liquid particles suspended in the atmosphere are called aerosols. These particles are important to scientists because they represent an area of great uncertainty in their efforts to understand Earth's climate system. These maps show monthly aerosol optical thickness, derived using measurements from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor onboard NASA’s Terra satellite, from January 2005 to the present. Aerosol optical thickness is a measure of how much light the airborne particles prevent from traveling through the atmosphere. Aerosols absorb and scatter incoming sunlight, thus reducing visibility and increasing optical thickness. Dark orange pixels show high aerosol concentrations, while light orange pixels show lower concentrations, and light yellow areas show little or no aerosols. Black shows where the sensor could not make its measurement. An optical thickness of less than 0.1 (light yellow) indicates a crystal clear sky with maximum visibility, whereas a value of 1 (dark orange) indicates the presence of aerosols so dense that people would have difficulty seeing the sun. || ",
            "hits": 125
        },
        {
            "id": 30394,
            "url": "https://svs.gsfc.nasa.gov/30394/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-24T12:00:00-04:00",
            "title": "Monthly Aerosol Optical Thickness (Aqua/MODIS)",
            "description": "Tiny solid and liquid particles suspended in the atmosphere are called aerosols. These particles are important to scientists because they represent an area of great uncertainty in their efforts to understand Earth's climate system.These maps show monthly aerosol optical thickness, derived using measurements from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor onboard NASA’s Aqua satellite, from July 2002 to the present. Aerosol optical thickness is a measure of how much light the airborne particles prevent from traveling through the atmosphere. Aerosols absorb and scatter incoming sunlight, thus reducing visibility and increasing optical thickness. Dark orange pixels show high aerosol concentrations, while light orange pixels show lower concentrations, and light yellow areas show little or no aerosols. Black shows where the sensor could not make its measurement. An optical thickness of less than 0.1 (light yellow) indicates a crystal clear sky with maximum visibility, whereas a value of 1 (dark orange) indicates the presence of aerosols so dense that people would have difficulty seeing the sun. || ",
            "hits": 98
        },
        {
            "id": 11359,
            "url": "https://svs.gsfc.nasa.gov/11359/",
            "result_type": "Produced Video",
            "release_date": "2013-09-16T09:00:00-04:00",
            "title": "Planetary Scientist Profile: Emily Wilson",
            "description": "NASA scientist Emily Wilson discusses her work developing miniaturized instruments that measure greenhouse gases in the atmosphere. Her latest instrument, the mini-LHR, works in tandem with AERONET, and will contribute to the global effort to better understand climate change. || ",
            "hits": 15
        },
        {
            "id": 3668,
            "url": "https://svs.gsfc.nasa.gov/3668/",
            "result_type": "Visualization",
            "release_date": "2009-12-13T00:00:00-05:00",
            "title": "Atmospheric Black Carbon Density",
            "description": "Black carbon, or soot, is formed from the burning of fossil fuels and biomass and lingers in the atmosphere for days or weeks before being deposited on the land or ocean. The transport and deposition of black carbon has become an important topic related to climate change since it can absorb sunlight and cause an increase in temperature on ice surfaces or in the atmosphere. The movement of black carbon in the atmosphere can be simulated by including existing black carbon data sets in a global model of the atmosphere. This animation shows the simulation of over three months of atmospheric black carbon production and movement from the Goddard Chemistry Aerosol and Transport (GOCART) model, which is driven by output of the GEOS5 global atmosphere simulation. Note the production of black carbon from industrialization in China and biomass burning in Africa, as well as the movement of black carbon across the oceans of the world. || ",
            "hits": 75
        }
    ]
}