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            "id": 5474,
            "url": "https://svs.gsfc.nasa.gov/5474/",
            "result_type": "Visualization",
            "release_date": "2025-01-20T00:00:00-05:00",
            "title": "Science On a Sphere: 4 Years of Biosphere",
            "description": "Biosphere data processed for display on Science On a Sphere (SOS)",
            "hits": 69
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        {
            "id": 5075,
            "url": "https://svs.gsfc.nasa.gov/5075/",
            "result_type": "Visualization",
            "release_date": "2023-02-13T00:00:00-05:00",
            "title": "Near Real-Time Global Biosphere",
            "description": "The latest 2.5 years of Biosphere data with date annotations. || nrtbio_print.jpg (1024x512) [205.4 KB] || nrtbio_searchweb.png (320x160) [88.7 KB] || nrtbio_thm.png (80x40) [7.2 KB] || Plate_Carree_with_Dates (4096x2048) [0 Item(s)] || nrtbio_annot_plate_2048p30.mp4 (4096x2048) [113.2 MB] || slide-01.hwshow ||",
            "hits": 0
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        {
            "id": 5006,
            "url": "https://svs.gsfc.nasa.gov/5006/",
            "result_type": "Visualization",
            "release_date": "2022-11-06T00:00:00-04:00",
            "title": "Global Biosphere March 2017 - Feb 2022",
            "description": "Example composite of 5 years of Mollweide projected data of Earth's biosphere beginning March 2017 through February 2022. || newbio_v34_mollweide_comp1130_print.jpg (1024x512) [186.1 KB] || newbio_v34_mollweide_comp1130_searchweb.png (180x320) [94.2 KB] || newbio_v34_mollweide_comp1130_thm.png (80x40) [7.4 KB] || Example_Composite (2000x1000) [0 Item(s)] || newbio_v34_mollweide_comp_1000p30.mp4 (2000x1000) [40.4 MB] || newbio_v34_mollweide_comp_1000p30.webm (2000x1000) [4.5 MB] || ",
            "hits": 123
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        {
            "id": 4813,
            "url": "https://svs.gsfc.nasa.gov/4813/",
            "result_type": "Visualization",
            "release_date": "2020-04-21T00:00:00-04:00",
            "title": "Earth Day 2020: Biosphere",
            "description": "Global Biosphere data from 1997 through 2017 with corresponding colorbars and date stamp.This video is also available on our YouTube channel. || earthday_bio_comp.0000_print.jpg (1024x576) [95.0 KB] || earthday_bio_comp.0000_searchweb.png (320x180) [51.5 KB] || earthday_bio_comp.0000_thm.png (80x40) [5.0 KB] || earthday_biosphere_composite (1920x1080) [0 Item(s)] || earthday_bio_comp_1080p30.webm (1920x1080) [17.9 MB] || earthday_bio_comp_1080p30.mp4 (1920x1080) [106.0 MB] || captions_silent.29351.en_US.srt [43 bytes] || earthday_bio_comp_1080p30.mp4.hwshow [191 bytes] || ",
            "hits": 78
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        {
            "id": 4597,
            "url": "https://svs.gsfc.nasa.gov/4597/",
            "result_type": "Visualization",
            "release_date": "2017-11-16T15:00:00-05:00",
            "title": "Earth: Our Living Planet (Updated)",
            "description": "Twenty years of global biosphere data mapped on a slowly spinning globe. || slow_spin_4k.5542_print.jpg (1024x576) [83.1 KB] || slow_spin_4k.5542_searchweb.png (320x180) [48.3 KB] || slow_spin_4k.5542_thm.png (80x40) [4.4 KB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || slow_spin_1080p30.webm (1920x1080) [17.8 MB] || slow_spin_1080p30.mp4 (1920x1080) [119.2 MB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || slow_spin_4k.mp4 (3840x2160) [397.0 MB] || ",
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            "id": 4596,
            "url": "https://svs.gsfc.nasa.gov/4596/",
            "result_type": "Visualization",
            "release_date": "2017-11-14T17:00:00-05:00",
            "title": "20 Years of Global Biosphere (updated)",
            "description": "This Mollweide projected data visualization shows 20 years of Earth's biosphere starting in September 1997 going through September 2017. Data for this visualization was collected from multiple satellites over the past twenty years. || biosphere7_mollweide.4507_print.jpg (576x1024) [192.2 KB] || biosphere7_mollweide.4507_searchweb.png (180x320) [91.0 KB] || biosphere7_mollweide.4507_thm.png (80x40) [7.4 KB] || mollweide_annotated (1920x1080) [0 Item(s)] || biosphere7_mollweide_1080p30.webm (1920x1080) [17.8 MB] || biosphere7_mollweide_1080p30.mp4 (1920x1080) [264.8 MB] || biosphere7_mollweide_1080p30.mp4.hwshow || ",
            "hits": 140
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        {
            "id": 11512,
            "url": "https://svs.gsfc.nasa.gov/11512/",
            "result_type": "Produced Video",
            "release_date": "2014-04-01T12:45:00-04:00",
            "title": "Satellite Shows High Productivity From U.S. Corn Belt",
            "description": "Data from satellite sensors show that during the Northern Hemisphere's growing season, the Midwest region of the United States boasts more photosynthetic activity than any other spot on Earth, according to NASA and university scientists. || ",
            "hits": 17
        },
        {
            "id": 3927,
            "url": "https://svs.gsfc.nasa.gov/3927/",
            "result_type": "Visualization",
            "release_date": "2012-06-07T12:00:00-04:00",
            "title": "ICESCAPE Mission Measures High Chlorophyll-a Under the Ice",
            "description": "ICESCAPE is a multi-year NASA mission to study biogeochemical and ecological impacts of climate change in the Chukchi and Beaufort Seas in the Arctic. During 2011, the ICESCAPE mission acquired data while sailing on the US Coast Guard Cutter Healy. This visualization shows both the technique used by the ICESCAPE mission to take data measurements as well as some of the data that was taken.The visualization shows the ICESCAPE ship's path through the Chukchi and Beaufort seas north of Alaska from July 3, 2011 through July 8, 2011. The ship stops and takes measurements along the way. The measurements are taken by canisters lowered to various depths that sample the water. The measurement depths range from 1.8 meters to 149.3 meters below sea level. The sets of measurements are broken into two transects. The first transect is the trip out into the ice. The second transect is the trip back. Topography (above sea level) is exaggerated 10 times. Bathymetry (below sea level) is exaggerated 200 times in order differentiate the measurements.The colors of the measurements (i.e,. stations) correspond to the color bar below which represent chlorophyll-a concentrations. Measurements that are depicted by spheres were acquired while the ship was in open water while measurements depicted by cubes were acquired when the ship was in ice. As data is collected, a wall of interpolated data is generated.An important finding of this research was that high concentrations of chlorophyll-a were found under the ice. || ",
            "hits": 31
        },
        {
            "id": 3764,
            "url": "https://svs.gsfc.nasa.gov/3764/",
            "result_type": "Visualization",
            "release_date": "2010-08-19T14:00:00-04:00",
            "title": "How Much Carbon do Plants Take from the Atmosphere?",
            "description": "Plant life converts atmospheric carbon dioxide into biomass through photosynthesis, a process called 'fixing'. This is one of the main ways in which carbon dioxide is removed from the atmosphere and is a major part of the carbon cycle. The amount of carbon removed is called the gross primary productivity (GPP), and the change in GPP due to rising global temperatures is very important factor in the response of the Earth to climate change.Data from the MODIS instrument on NASA's Terra satellite has been recently used to calculate the GPP for the whole world for the last 10 years. This animation shows a time sequence of GPP on land as measured by MODIS during the years 2000 through 2009. Two things to note are the year-long productivity of the tropical regions and the large seasonal productivity in the northern hemisphere. A close look at the animation also reveals major urban areas for which the productivity is negligible.For a look at why the decade from 2000 through 2009 meant lower productivity, see the page 'How has the Atmospheric Carbon Uptake from Plants Changed in the Last Decade?' || ",
            "hits": 161
        },
        {
            "id": 3765,
            "url": "https://svs.gsfc.nasa.gov/3765/",
            "result_type": "Visualization",
            "release_date": "2010-08-19T14:00:00-04:00",
            "title": "How has the Atmospheric Carbon Uptake from Plants Changed in the Last Decade?",
            "description": "Plant life converts atmospheric carbon dioxide into biomass through photosynthesis. This process, called fixing, is one of the main ways in which carbon dioxide is removed from the atmosphere and is a major part of the carbon cycle. Plants release a fraction of this fixed carbon by respiration in order to get energy to live and to move carbon to other organs. The amount of carbon removed minus the amount of carbon respired is called the net primary productivity (NPP) and is the amount of carbon turned into biomass.The change in NPP due to rising global temperatures is a very important factor in the response of the Earth to climate change. Measurements of radiation and leaf area from the MODIS instrument on NASA's Terra satellite have recently been used to calculate the change in NPP for the whole world for the last 10 years. This animation shows a time sequence of annual NPP deviation from normal (or 'anomaly') on land as measured by MODIS during the years 2000 through 2009. Annual NPP, especially its departures from a long-term mean condition, will demonstrate the effects of environmental drivers such as ENSO (El Niño) events, climate change, droughts, pollution episodes, land degradation, and agricultural expansion.Earlier studies of productivity between 1982 and 1999 showed that prouctivity went up as global temperatures rose, because longer, warmer growing seasons were better for plant growth. This new study indicates that this is still true in the northern hemisphere, but that increased temperatures have meant increased drought and dryness in the tropics and the southern hemisphere. As a result, the global net productivity has actually decreased in the period from 2000 through 2009.Regionally, negative annual NPP anomalies were mainly caused by large-scale droughts. In 2000, droughts reduced NPP in North America and China; in 2002, droughts reduced NPP in North America and Australia; in 2003, drought caused by a major heat wave reduced NPP in Europe; in 2005, severe droughts in the Amazon, Africa, and Australia greatly reduced both regional and global NPP; from 2007 through 2009 over large parts of Australia, continuous droughts reduced continental NPP.For an animation of daily productivity, see the page How Much Carbon do Plants Take from the Atmosphere?. || ",
            "hits": 104
        },
        {
            "id": 3707,
            "url": "https://svs.gsfc.nasa.gov/3707/",
            "result_type": "Visualization",
            "release_date": "2010-05-01T00:00:00-04:00",
            "title": "Five Spheres - Land Changes through NDVI",
            "description": "Satellite data can be used to monitor the health of plant life from space. The Normalized Difference Vegetation Index (NDVI) provides a simple numerical indicator of the health of vegetation which can be used to monitoring changes in vegetation over time. This animation shows the seasonal changes in vegetation by fading between average monthly NDVI data from 2004. This animation of land changes is match framed to animation id a003708, a003709, a003710, and a003711. || ",
            "hits": 61
        },
        {
            "id": 3709,
            "url": "https://svs.gsfc.nasa.gov/3709/",
            "result_type": "Visualization",
            "release_date": "2010-05-01T00:00:00-04:00",
            "title": "Five Spheres - Biosphere",
            "description": "Satellite data can be used to monitor the health of the biosphere from space. This animation of seasonal changes to the biosphere is match framed to animation entries 3707, 3708, 3710, and 3711. The SeaWiFS instrument is carried aboard the satellite OrbView-2, providing important information about the oceans, the land, and the life within them. On land, the dark greens show where there is abundant vegetation and tans show relatively sparse plant cover. In the oceans, red, yellow, and green pixels show dense phytoplankton blooms, those regions of the ocean that are the most productive over time, while blues and purples show where there is very little of the microscopic marine plants called phytoplankton. For most of the world's oceans, the most important things that influence its color are phytoplankton. Phytoplankton are very small, single-celled plants, generally smaller than the size of a pinhead that contain a green pigment called chlorophyll. All plants (on land and in the ocean) use chlorophyll to capture energy from the sun and through the process known as photosynthesis convert water and carbon dioxide into new plant material and oxygen. Although microscopic, phytoplankton can bloom in such large numbers that they can change the color of the ocean to such a degree that we can measure that change from space. The basic principle behind the remote sensing of ocean color from space is this: the more phytoplankton in the water, the greener it is...the less phytoplankton, the bluer it is. For more information, visit http://oceancolor.gsfc.nasa.gov/SeaWiFS/. || ",
            "hits": 38
        },
        {
            "id": 3685,
            "url": "https://svs.gsfc.nasa.gov/3685/",
            "result_type": "Visualization",
            "release_date": "2010-03-15T23:00:00-04:00",
            "title": "Aqua/AIRS Carbon Dioxide, 2002-2009, With Mauna Loa Carbon Dioxide Graph",
            "description": "This visualization is a time-series of the global distribution and variation of the concentration of mid-tropospheric carbon dioxide observed by the Atmospheric Infrared Sounder (AIRS) on the NASA Aqua spacecraft. For comparison, it is overlain by a graph of the seasonal variation and interannual increase of carbon dioxide observed at the Mauna Loa, Hawaii observatory. The AIRS data show the average concentration (parts per million) over an altitude range of 3 km to 13 km, whereas the Mauna Loa data show the concentration at an altitude of 3.4 km and its annual increase at a rate of approximately 2 parts per million (ppm) per year. The two most notable features of this visualization are the seasonal variation of CO2 and the trend of increase in its concentration from year to year. The global map clearly shows that the CO2 in the northern hemisphere peaks in April-May and then drops to a minimum in September-October. Although the seasonal cycle is less pronounced in the southern hemisphere it is opposite to that in the northern hemisphere. This seasonal cycle is governed by the growth cycle of plants. The northern hemisphere has the majority of the land masses, and so the amplitude of the cycle is greater in that hemisphere. The overall color of the map shifts toward the red with advancing time due to the annual increase of CO2. Although the mid-latitude jet streams are not visible in the map, we can see their influence upon the distribution of CO2 around the globe. These rivers of air occur at an altitude of about 5 km and rapidly transport CO2 around the globe at that altitude. In the northern hemisphere, the mid-latitude jet stream squirms like a released garden hose over the period of a few days due to the continental landmasses. In the southern hemisphere the jet stream flow is more directly West to East, and during the period from July to October the CO2 concentration is enhanced in a belt delineated by the jet stream and lofting of CO2 into the free troposphere by the high Andes is visible in this period. The zonal flow of CO2 around the globe at the latitude of South Africa, southern Australia and southern South America is readily apparent. Eastward flow of CO2 from Indonesia and the Celebes sea can be seen in the November to February time frame. || ",
            "hits": 69
        },
        {
            "id": 3641,
            "url": "https://svs.gsfc.nasa.gov/3641/",
            "result_type": "Visualization",
            "release_date": "2009-10-08T00:00:00-04:00",
            "title": "Rotating Phytoplankton 10-year Global Average",
            "description": "The SeaWiFS instrument aboard the SeaStar satellite has been collecting ocean data since 1997. By monitoring the color of reflected light via satellite, scientists can determine how successfully plant life is photosynthesizing. A measurement of photosynthesis is essentially a measurement of successful growth, and growth means successful use of ambient carbon. This animation displays the 10-year global average of nearly a decade's worth of data taken by the SeaWiFS instrument, showing the abundance of life in the sea. Dark blue represents warmer areas where there is little life due to lack of nutrients, and greens and reds represent cooler nutrient-rich areas. || ",
            "hits": 43
        },
        {
            "id": 3642,
            "url": "https://svs.gsfc.nasa.gov/3642/",
            "result_type": "Visualization",
            "release_date": "2009-10-08T00:00:00-04:00",
            "title": "Regions Exhibiting Decreased Phytoplankton Levels and Increased Sea Surface Temperatures",
            "description": "Throughout most of Earth's ocean, as the surface layer of the ocean warms, the water becomes less dense and forms a cap, rather than mixing down to allow cooler, nutrient-rich water to well up. Over time, areas with less mixing show reduced productivity and less phytoplankton. This data visualization highlights regions where a strong correlation between high sea surface temperatures and decreased phytoplankton productivity occurred from 1997-2006. For nearly a decade, the Sea-viewing Wide Field-of-View Sensor (SeaWiFS) has been making global observations of phytoplankton productivity. On December 6, 2006, NASA-funded scientists announced that warming sea surface temperatures over the past decade have caused a global decline in phytoplankton productivity. || ",
            "hits": 24
        },
        {
            "id": 3580,
            "url": "https://svs.gsfc.nasa.gov/3580/",
            "result_type": "Visualization",
            "release_date": "2009-05-28T12:00:00-04:00",
            "title": "Stresses on Global Phytoplankton Revealed by MODIS",
            "description": "All plants absorb energy from the sun, typically more than the plant can consume through the process of photosynthesis. The extra energy is mostly released as heat as the plants respirate oxygen and water vapor. But a fraction of that energy is re-emitted as fluorescent light, particularly in red wavelengths. MODIS is the first instrument to observe this signal on a global scale.Red-light fluorescence says something about the physiology of plants and the efficiency of photosynthesis, as different parts of the plant's energy-harnessing machinery are activated based on the amount of light and nutrients available. The amount of fluorescence increases when plants are under stress from a lack of iron, a critical nutrient in the sea. When water is iron-poor, plants slow their growing processes and struggle to dissipate excess solar energy that cannot be used in photosynthesis. The fluorescence data from MODIS gives scientists a tool to see where waters are iron-enriched or iron-limited, and where plankton might flourish or not. Iron is typically picked up by winds blowing dust from deserts and other arid areas, and by river plumes and island currents. || ",
            "hits": 36
        },
        {
            "id": 3585,
            "url": "https://svs.gsfc.nasa.gov/3585/",
            "result_type": "Visualization",
            "release_date": "2009-03-16T00:00:00-04:00",
            "title": "Stereoscopic SeaWiFS Biosphere Global Rotation: 1997-2006",
            "description": "The SeaWiFS instrument aboard the SeaStar satellite has been collecting ocean data since 1997. By monitoring the color of reflected light via satellite, scientists can determine how successfully plant life is photosynthesizing. A measurement of photosynthesis is essentially a measurement of successful growth, and growth means successful use of ambient carbon.This animation represents nearly a decade's worth of data taken by the SeaWiFS instrument, showing the abundance of life in the sea. This time period repeats twice during the animation. Dark blue represents warmer areas where there is little life due to lack of nutrients, and greens and reds represent cooler nutrient-rich areas. The nutrient-rich areas include coastal regions where cold water rises from the sea floor bringing nutrients along and areas at the mouths of rivers where the rivers have brought nutrients into the ocean from the land. The nutrient-rich waters contribute to some of the oxygen-poor pockets of the seas called dead zones.This visualization is a stereoscopic version of animation entry:  #3420:SeaWiFS Biosphere Global Rotation from 1997 to 2006 || ",
            "hits": 18
        },
        {
            "id": 3494,
            "url": "https://svs.gsfc.nasa.gov/3494/",
            "result_type": "Visualization",
            "release_date": "2007-10-05T00:00:00-04:00",
            "title": "SeaWiFS Biosphere Data over Australia",
            "description": "The SeaWiFS instrument aboard the Seastar satellite has been collecting ocean data since 1997.  By monitoring the color of reflected light via satellite, scientists can determine how successfully plant life is photosynthesizing.  A measurement of photosynthesis is essentially a measurement of successful growth, and growth means successful use of ambient carbon. This animation represents nearly a decade's worth of data taken by the SeaWiFS instrument, showing the abundance of life in the sea. Dark blue represents warmer areas where there is little life due to lack of nutrients, and greens and reds represent cooler nutrient-rich areas. The nutrient-rich areas include coastal regions where cold water rises from the sea floor bringing nutrients along and areas at the mouths of rivers where the rivers have brought nutrients into the ocean from the land. || ",
            "hits": 16
        },
        {
            "id": 3752,
            "url": "https://svs.gsfc.nasa.gov/3752/",
            "result_type": "Visualization",
            "release_date": "2007-04-16T00:00:00-04:00",
            "title": "Life's Signature Colors, Captured by Satellite",
            "description": "Think of Earth's great life forms and images of cheetahs, whales and dinosaurs come to mind. Towering redwood trees, majestic plains of grasses on Asian steppes: Earth's living glow fills the eye with diversity, resilience, and endless Darwinian invention.But arguably one of the most essential populations on Earth would have no chance if pitted against others in a contest based on looks alone. More than any other kind of life, the Earth lives and breathes because of the profound success of lowly phytoplankton.Phytoplankton is a broad, catch-all name for a wide category of simple organisms living primarily in the world's oceans. Floating in vast fields of billions of tiny individual plants, these essential life forms make up a colossal proportion of the Earth's total biomass. It's also vital to the overall web of life on Earth. Phytoplankton serves not only as the base of the aquatic food chain, but also as the principal source of atmospheric oxygen worldwide.As global climate continues to change, a complex set of forces begins to push and pull on the ability of phytoplankton populations to thrive. Changing global ocean temperatures have enormous influences, as does changing ocean chemistry. But while this may present itself as a subject of purely academic interest, phytoplankton populations may present one of the most vital bellwethers for practical changes beginning to take hold of a planet in transition.NASA's SeaWiFS spacecraft is one of the most powerful tools in keeping up with these trends. A small, low cost vehicle and instrument package, SeaWiFS monitors the colors of the world everyday. As a proxy for bioproductivity, color is the key to understanding how these oceanic lifeforms are faring...and changing. || ",
            "hits": 21
        },
        {
            "id": 3599,
            "url": "https://svs.gsfc.nasa.gov/3599/",
            "result_type": "Visualization",
            "release_date": "2006-12-05T00:00:00-05:00",
            "title": "Phytoplankton Blooms through the Eyes of SeaWiFS Data",
            "description": "The SeaWiFS instrument aboard the Seastar satellite has been collecting ocean data since 1997. By monitoring the color of reflected light via satellite, scientists can determine how successfully plant life is photosynthesizing. A measurement of photosynthesis is essentially a measurement of successful growth, and growth means successful use of ambient carbon. This animation represents nearly a decade's worth of data taken by the SeaWiFS instrument, showing the abundance of life in the sea. Dark blue represents warmer areas where there is little life due to lack of nutrients, and greens and reds represent cooler nutrient-rich areas. The nutrient-rich areas include coastal regions where cold water rises from the sea floor bringing nutrients along and areas at the mouths of rivers where the rivers have brought nutrients into the ocean from the land. Dark gray indicate areas where no data was collected. || ",
            "hits": 16
        },
        {
            "id": 2979,
            "url": "https://svs.gsfc.nasa.gov/2979/",
            "result_type": "Visualization",
            "release_date": "2004-09-03T12:00:00-04:00",
            "title": "Mississippi Dead Zone",
            "description": "Recent reports indicate that the large region of low oxygen water often referred to as the 'Dead Zone' has spread across nearly 5,800 square miles of the Gulf of Mexico again in what appears to be an annual event. NASA satellites monitor the health of the oceans and spots the conditions that lead to a dead zone. These images show how ocean color changes from winter to summer in the Gulf of Mexico. Summertime satellite observations of ocean color from MODIS Aqua show highly turbid waters which may include large blooms of phytoplankton extending from the mouth of the Mississippi River all the way to the Texas coast. When these blooms die and sink to the bottom, bacterial decomposition strips oxygen from the surrounding water, creating an environment very difficult for marine life to survive in. Reds and oranges represent high concentrations of phytoplankton and river sediment. The National Oceanic and Atmospheric Administration (NOAA) ships measured low oxygen water in the same location as the highly turbid water in the satellite images. Most studies indicate that fertilizers and runoff from human sources is one of the major stresses impacting coastal ecosystems. In the third image using NOAA data, reds and oranges represent low oxygen concentrations. || ",
            "hits": 49
        },
        {
            "id": 2914,
            "url": "https://svs.gsfc.nasa.gov/2914/",
            "result_type": "Visualization",
            "release_date": "2004-06-17T12:00:00-04:00",
            "title": "Global Biosphere from August, 1997 to July, 2003 (WMS)",
            "description": "By monitoring the color of reflected light via satellite, scientists can determine how successfully plant life is photosynthesizing. A measurement of photosynthesis is essentially a measurement of successful growth, and growth means successful use of ambient carbon. This animation represents the first six years' worth of data taken by the SeaWiFS instrument, showing the abundance of life both on land and in the sea. In the ocean, dark blue represents warmer areas where there is little life due to lack of nutrients, and greens and reds represent cooler nutrient-rich areas. The nutrient-rich areas include coastal regions where cold water rises from the sea floor bringing nutrients along and areas at the mouths of rivers where the rivers have brought nutrients into the ocean from the land. On land, green represents areas of abundant plant life, such as forests and grasslands, while tan and white represent areas where plant life is sparse or non-existent, such as the deserts in Africa and the Middle East and snow-cover and ice at the poles. || ",
            "hits": 31
        },
        {
            "id": 2954,
            "url": "https://svs.gsfc.nasa.gov/2954/",
            "result_type": "Visualization",
            "release_date": "2004-06-16T12:00:00-04:00",
            "title": "Isabel's Phytoplankton Trail",
            "description": "SeaWiFS took the following images of Hurricane Isabel on September 13th and 18th of 2003 over the Atlantic Ocean.  As the hurricane passes, it leaves behind a trail of plankton blooms, evident by the rapid change in chlorophyll amounts.  The lighter blue areas in the hurricane's wake represent higher amounts of chlorophyll. || ",
            "hits": 12
        },
        {
            "id": 2955,
            "url": "https://svs.gsfc.nasa.gov/2955/",
            "result_type": "Visualization",
            "release_date": "2004-06-16T12:00:00-04:00",
            "title": "Isabel's Phytoplankton Trail with GOES",
            "description": "As Hurricane Isabel passed over the Atlantic it left a trail of phytoplankton near the ocean surface. The GOES data in this animation tracks the progression of the hurricane in 6 hour increments, while the underlying SeaWiFS data shows the chlorophyll trail on September 13th and September 18th, 2003. The lighter blue areas in the hurricane's wake represent higher amounts of chlorophyll. || ",
            "hits": 21
        },
        {
            "id": 2937,
            "url": "https://svs.gsfc.nasa.gov/2937/",
            "result_type": "Visualization",
            "release_date": "2004-05-13T12:00:00-04:00",
            "title": "NDVI Anomalies Show Areas of Likely Drought in the Western US (wide view)",
            "description": "Satellite data can gauge the health of plants, which is a good indicator of drought. Satellite imagery shows changes in vegetation between 1999 and 2003. The Normalized Difference Vegetation Index (NDVI) measures how dense and green plant leaves are, which suggests overall vegetative health. The NDVI images are also useful as a measure of drought when compared to 'normal' plant health. NASA scientists calculate average NDVI values for an area to find out what is normal at a particular time of year. This data was measured by the vegetation instrument on Europe's SPOT satellite provided by DigitalGlobe/SPOT, under agreement with the U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS). In 2002, drought had settled across the Midwest. Large dark brown sections of eastern Colorado show where vegetation was less lush and healthy than normal. This version of the visualization is a wide view showing the western United States. || ",
            "hits": 22
        },
        {
            "id": 2938,
            "url": "https://svs.gsfc.nasa.gov/2938/",
            "result_type": "Visualization",
            "release_date": "2004-05-13T12:00:00-04:00",
            "title": "NDVI Anomalies Show Areas of Likely Drought in the Western US (Southwest view)",
            "description": "Satellite data can gauge the health of plants, which is a good indicator of drought. Satellite imagery shows changes in vegetation between 1999 and 2003. The Normalized Difference Vegetation Index (NDVI) measures how dense and green plant leaves are, which suggests overall vegetative health. The NDVI images are also useful as a measure of drought when compared to 'normal' plant health. NASA scientists calculate average NDVI values for an area to find out what is normal at a particular time of year. This data was measured by the vegetation instrument on Europe's SPOT satellite provided by DigitalGlobe/SPOT, under agreement with the U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS).In 2002, drought had settled across the Midwest. Large dark brown sections of eastern Colorado show where vegetation was less lush and healthy than normal.This version of the visualization focuses on the southwestern United States. || ",
            "hits": 29
        },
        {
            "id": 2939,
            "url": "https://svs.gsfc.nasa.gov/2939/",
            "result_type": "Visualization",
            "release_date": "2004-05-13T12:00:00-04:00",
            "title": "NDVI Anomalies Show Areas of Likely Drought in the Western US (Colorado view)",
            "description": "Satellite data can gauge the health of plants, which is a good indicator of drought.Satellite imagery shows changes in vegetation between 1999 and 2003.The Normalized Difference Vegetation Index (NDVI) measures how dense and green plant leaves are, which suggests overall vegetative health.The NDVI images are also useful as a measure of drought when compared to 'normal' plant health. NASA scientists calculate average NDVI values for an area to find out what is normal at a particular time of year. This data was measured by the vegetation instrument on Europe's SPOT satellite provided by DigitalGlobe/SPOT, under agreement with the U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS).In 2002, drought had settled across the Midwest. Large dark brown sections of eastern Colorado show where vegetation was less lush and healthy than normal.This version of the visualization focuses on Colorado. || ",
            "hits": 24
        },
        {
            "id": 2316,
            "url": "https://svs.gsfc.nasa.gov/2316/",
            "result_type": "Visualization",
            "release_date": "2001-12-20T12:00:00-05:00",
            "title": "Fraction of Photosynthetically Active Radiation for Africa September, 2000, through May, 2001",
            "description": "MODIS' observations also allow scientists to track two 'vital signs' of Earth's vegetation. At Boston University, a team of researchers is using MODIS data to create global estimates of the green leaf area of Earth's vegetation and how much sunlight the leaves are absorbing. Called LAI, for 'Leaf Area Index,' and FPAR, for 'Fraction of absorbed Photosynthetically Active Radiation,' both pieces of information are necessary for understanding how sunlight interacts with the Earth's vegetated surfaces-from the top layer, called the canopy, through the understory vegetation, and down to the ground. || ",
            "hits": 18
        }
    ]
}