Image from TERRA
Fri, 14 Sep 2018 01:33 EDT

NASA's MISR instrument captures Hurricane Florence just off the East Coast. Data from two of its nine cameras is combined to show the storm in 3D

Image from TERRA
Mon, 27 Aug 2018 16:33 EDT

For the first time ever, measurements from NASA Earth-observing research satellites are being used to help combat a potential outbreak of life-threatening cholera. Humanitarian teams in Yemen are targeting areas identified by a NASA-supported project that precisely forecasts high-risk regions based on environmental conditions observed from space.

Image from TERRA
Fri, 24 Aug 2018 20:50 EDT

Instruments on NASA's Terra and Aqua satellites were watching as Hurricane Lane -- a category 2 storm as of Friday, Aug. 24 -- made its way toward Hawaii.

Taking Stock of 2014 Fire Emissions

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NASA Earth Observatory map by Joshua Stevens and Jesse Allen, using data from the Global Fire Assimilation System (GFAS) and the State of the Climate in 2014 report. Caption by Adam Voiland.

On Earth, there is always something burning. On a typical day in August, the Moderate Resolution Imaging Spectroradiometers (MODIS) on NASA’s Aqua and Terra satellites detect approximately 10,000 active fires, as well as huge swaths of freshly charred land in ecosystems ranging from boreal forests to savanna to tropical forests.

In order to determine how much carbon dioxide and other pollutants all these fires contribute to the atmosphere in a given year, scientists have developed computer models that combine satellite observations of burned area and active fires together with information about vegetation, fuel loads, and other details. Data produced by two computer modeling efforts—the Global Fire Assimilation System (GFAS) and the Global Fire Emissions Database (GFED)—were highlighted in NOAA’s 2014 State of the Climate report, published in the Bulletin of the American Meteorological Society. Read more

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