The new maps, released in 2013, provide a 16-fold increase in spatial resolution and a 3-fold increase in temporal resolution over the first proof-of-concept maps released in 2011. This lets scientists use fluorescence to observe, for example, variation in the length of the growing season.
A visualization of the phenomenon shows global land plant fluorescence data collected from 2007 to 2011, combined to depict a single average year. 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Where in the world does our carbon dioxide from fossil fuels go?1. NASA’s first carbon dioxide satellite launched today (7/1/2014), will measure which forests and plants soak up the most carbon dioxide from the air.2. The greater the absorption, the brighter the invisible fluorescence from growing plants.3. The U.S. corn belt is the most efficient CO2 absorber in the world!4. The Amazon rainforest is another carbon dioxide sponge.TAG: Knowing where our carbon dioxide goes will help crop forecasters, as well as climate scientists. Approximately one quarter of our carbon dioxide emissions are absorbed by forests and vegetation. ", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 4100, "url": "https://svs.gsfc.nasa.gov/4100/", "page_type": "Visualization", "title": "Fluorescence Visualizations in High-Resolution (Comparison to NDVI)", "description": "During photosynthesis, plants fluoresce. This faint glow is in the infrared part of the spectrum, not visible to the naked eye but detectable by satellites orbiting hundreds of miles above Earth. NASA scientists established a method to turn this satellite data into global maps of the subtle phenomenon in more detail than ever before.The new maps, released in 2013, provide a 16-fold increase in spatial resolution and a 3-fold increase in temporal resolution over the first proof-of-concept maps released in 2011. This lets scientists use fluorescence to observe, for example, variation in the length of the growing season.These visualizations of the phenomenon shows global land plant fluorescence data collected from 2007 to 2011, combined to depict a single average year. Darker greens indicates regions with little or no fluorescence; lighter greens and white indicate regions of high fluorescence.Fluorescence and Normalized Difference Vegetation Index (NDVI) are compared. A visualization is provided comparing the northern hemisphere of both data sets. Individual visualizations are also provided in a standard cylindrical equidistant projection for wrapping to a globe. The same color bars are used for both data sets for easier comparison. || ", "release_date": "2013-11-08T11:00:00-05:00", "update_date": "2024-10-09T00:03:35.270058-04:00", "main_image": { "id": 464168, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004100/a004100/comparison2.8196.jpg", "filename": "comparison2.8196.jpg", "media_type": "Image", "alt_text": "Comparison of fluorescence data (top) to NDVI data (bottom)", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 11322, "url": "https://svs.gsfc.nasa.gov/11322/", "page_type": "Produced Video", "title": "Blushing Botanicals", "description": "A healthy plant is a glowing plant. That's because healthy plants that engage in photosynthesis—convert sunlight to energy—also emit fluorescent light. It's the same physical process that makes everyday objects glow in the dark. While human eyes are unable to detect the faint glow from plants, satellites hundreds of miles above Earth are up to the task. A team of researchers led by NASA scientists identified the fluorescence fingerprint in data collected by an instrument on a European meteorological satellite. A visualization of the data, released in 2013, allows scientists for the first time to see global changes in terrestrial plant fluorescence over the course of a month. That means a front-row seat to track the northward migration of plant blooming during the Northern Hemisphere springtime, as well as the shut down in fall—even before changing leaf colors indicate a seasonal shift is amiss. Watch the visualization for a tour of plant fluorescence around the world. || ", "release_date": "2013-08-13T00:00:00-04:00", "update_date": "2023-05-03T13:51:55.859030-04:00", "main_image": { "id": 463045, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011300/a011322/cover-1024.jpg", "filename": "cover-1024.jpg", "media_type": "Image", "alt_text": "A glow emanates from Earth's thriving land plants.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 11317, "url": "https://svs.gsfc.nasa.gov/11317/", "page_type": "Produced Video", "title": "Seeing Photosynthesis From Space", "description": "NASA scientists have discovered a new way to use satellites to measure what's occurring inside Earth's land plants at a cellular level.During photosynthesis, plants emit what is called fluorescence – a form of light invisible to the naked eye but detectable by satellites orbiting hundreds of miles above Earth. NASA scientists established a method to turn this satellite data into global maps of the subtle phenomenon in more detail than ever before.The new maps – produced by Joanna Joiner of NASA's Goddard Space Flight Center in Greenbelt, Md., and colleagues – provide a 16-fold increase in spatial resolution and a 3-fold increase in temporal resolution over the first proof-of-concept maps released in 2011. Improved global measurements could have implications for farmers interested in early indications of crop stress, and ecologists looking to better understand global vegetation and carbon cycle processes.\"For the first time, we are able to globally map changes in fluorescence over the course of a single month,\" Joiner said. \"This lets us use fluorescence to observe, for example, variation in the length of the growing season.\" || ", "release_date": "2013-07-24T14:00:00-04:00", "update_date": "2023-05-03T13:51:59.281066-04:00", "main_image": { "id": 463666, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011300/a011317/Frame_331.jpg", "filename": "Frame_331.jpg", "media_type": "Image", "alt_text": "For complete transcript, click here.", "width": 1920, "height": 1080, "pixels": 2073600 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }