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Flight-collected data links methane plumes to tundra fires in western Alaska

In Alaska's largest river delta, tundra that has been scorched by wildfire, is still emitting more methane than the rest of the landscape long after the flames died, scientists have found. The potent greenhouse gas can originate from decomposing carbon stored in permafrost for thousands of years. Its release could accelerate climate warming and lead to more frequent wildfires in the tundra, where blazes have been historically rare. The new study, published in Environmental Research Letters, was ....

United States , Kate Ramsayer , Boreal Vulnerability , Tundra Methane Carbon Spots Alaska Research Arctic Earth Environment Flight Nasa Science Sciences Scientists ,

Flight-collected data links methane plumes to tundra fires in western Alaska

Flight-collected data links methane plumes to tundra fires in western Alaska
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NASA satellite's elusive green lasers spotted at work

Greenbelt MD (SPX) Apr 19, 2023 -
The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator s motion-detecting cameras were set up near Japan s Mount Fuji to capture me ....

Goddard Space Flight Center , United States , Tony Martino , Kate Ramsayer , Daichi Fujii , Mount Fuji , Land Elevation Satellite , Space Flight Center , Fuji City , Space News ,

Earth Day Connections: NASA Investigates Vegetation – Climate Change: Vital Signs of the Planet

Earth Day Connections: NASA Investigates Vegetation
A visualization of greenness change over Canada and Alaska. Credit: NASA s Goddard Space Flight Center
By Kate Ramsayer,
In Brief:
From the vantage point of space, NASA’s fleet of Earth-observing satellites investigates connections between ecosystems that are continents apart, or right next door.
Part II
From the vantage point of space, NASA’s fleet of Earth-observing satellites joins with those of partner interagency and international agencies to investigate and illuminate connections between ecosystems that are continents apart, or right next door. With a global perspective, scientists can observe how factors like deforestation, climate change and disasters impact forests and other plant life – while also studying how changes in vegetation impact air quality, waterways and the climate. Vegetation is the primary energy source for nearly all life on Earth, so monitoring it and forecasting how it co ....

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Beyond Ice: NASA's ICESat-2 Shows Hidden Talents – Climate Change: Vital Signs of the Planet

Credit: NASA s Goddard Space Flight Center
Before its September 2018 launch, the ICESat-2 mission team was focused on making sure the satellite met its science requirements, said Tom Neumann, the mission’s project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. And it has, by precisely measuring the height of the ice sheets at Earth’s poles, of sea ice floes above the ocean waters, and of forest canopies.
The satellite’s continuous coverage around the globe, with height measurements of Earth’s surface taken every 2.3 feet (70 centimeters) along its ground path, has made ICESat-2 datasets appealing to those studying rivers, coastal regions, forests and more, he said. ....

College Park , United States , University Of Maryland , Goddard Space Flight Center , Ellen Buckley , Tom Neumann , Sinead Farrell , Kate Ramsayer , Helen Fricker , Heidi Ranndal , Brett Buzzanga , Nathan Thomas , Amy Neuenschwander , Lori Magruder , Old Dominion University In Norfolk , Fall Meeting Of The American Geophysical Union , University Of Texas , Scripps Institution Of Oceanography , European Space Agency Cryosat , Technical University Of Denmark , Fall Meeting , American Geophysical Union , Elevation Satellite , Scripps Institution , Amery Ice Shelf , Space Flight Center ,