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Recent Articles
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Topic: Arctic
Glaciers and ice sheets are far more complex structures than ice cubes. They form when snow accumulates and is compressed into ice by new snow over many years. ![]() NASA scientists traverse Antarctica’s icy landscape, towing scientific instruments and cold-weather gear with them. The team was tasked with collecting ground data to verify the accuracy of measurements made by the IceSat-2 satellite. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA study shows Earth, Moon used to share Magnetic Shield
“The Moon seems to have presented a substantial protective barrier against the solar wind for the Earth, which was critical to Earth’s ability to maintain its atmosphere during this time,” said Jim Green, NASA’s chief scientist and lead author of the new study. “We look forward to following up on these findings when NASA sends astronauts to the Moon through the Artemis program, which will return critical samples of the lunar South Pole.” ![]() This illustration shows magnetic field lines that Earth generates today. The Moon no longer has a magnetic field. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Arctic Boreal Vulnerability Experiment (ABoVE) discovers millions of Methane Hotspots in the Arctic
These methane emissions can accelerate future warming – but to understand to what extent, we need to know how much methane may be emitted, when and what environmental factors may influence its release. ![]() The image shows a thermokarst lake in Alaska. Thermokarst lakes form in the Arctic when permafrost thaws. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA Scientists reports Ocean Currents are changing due to Arctic Ice Melt
Using 12 years of satellite data, scientists have measured how this circular current, called the Beaufort Gyre, has precariously balanced an influx of unprecedented amounts of cold, fresh water – a change that could alter the currents in the Atlantic Ocean and cool the climate of Western Europe. ![]() Arctic sea ice was photographed in 2011 during NASA’s ICESCAPE mission, or “Impacts of Climate on Ecosystems and Chemistry of the Arctic Pacific Environment,” a shipborne investigation to study how changing conditions in the Arctic affect the ocean’s chemistry and ecosystems. The bulk of the research took place in the Beaufort and Chukchi seas in summer 2010 and 2011. (NASA/Kathryn Hansen) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Operation IceBridge finishes Eleventh Year of Polar Surveys
Designed to collect data during the years between NASA’s two Ice, Cloud, and land Elevation Satellites, ICESat and ICESat-2, IceBridge made its final polar flight in November 2019, one year after ICESat-2’s successful launch. As the team and planes move on to their next assignments, the scientists and engineers reflected on a decade of IceBridge’s most significant accomplishments. ![]() NASA’s Operation IceBridge, a ten-year mission to collect polar data between ICESat and ICESat-2, may be coming to a close, but its hundreds of terabytes of data and the expertise of its team will continue to fuel research and discovery for decades to come. (NASA / Jim Yungel) «Read the rest of this article» Sections: Technology | No Comments
NASA research shows Arctic Permafrost thawing could boost of Methane released into AtmosphereWritten by Ellen Gray
The impact on the climate may mean an influx of permafrost-derived methane into the atmosphere in the mid-21st century, which is not currently accounted for in climate projections. ![]() Methane bubbles up from the thawed permafrost at the bottom of the thermokarst lake through the ice at its surface. (Katey Walter Anthony/ University of Alaska Fairbanks) «Read the rest of this article» Sections: Technology | No Comments
NASA reports new study reveals Arctic Carbon Cycle acceleratingNASA’s Jet Propulsion Laboratory
A new NASA-led study using data from the Arctic Boreal Vulnerability Experiment (ABoVE) shows that carbon in Alaska’s North Slope tundra ecosystems spends about 13 percent less time locked in frozen soil than it did 40 years ago. In other words, the carbon cycle there is speeding up — and is now at a pace more characteristic of a North American boreal forest than of the icy Arctic. ![]() A 2017 image of Qikiqtaruk-Herschel Island Territorial Park in the Yukon shows more vegetation, shrubs and water compared with the 1987 image of the same area. (Isla Myers-Smith/University of Edinburgh) «Read the rest of this article» Sections: Technology | No Comments
NASA study shows Permafrost thawing to release Carbon into the Atmosphere in coming yearsWritten by Carol Rasmussen
The study calculated that as thawing continues, by the year 2300, total carbon emissions from this region will be 10 times as much as all human-produced fossil fuel emissions in 2016. ![]() Tundra polygons on Alaska’s North Slope. As permafrost thaws, this area is likely to be a source of atmospheric carbon before 2100. (NASA/JPL-Caltech/Charles Miller) «Read the rest of this article» Sections: Technology | No Comments
NASA reports 2015 Warm Cyclone thinned Arctic Sea IceWritten by Maria-José Viñas
The cyclone formed on December 28th, 2015, in the middle of the North Atlantic, and traveled to the United Kingdom and Iceland before entering the Arctic on December 30th, lingering in the area for several days. ![]() This image shows the winds and warm mass of air associated with a large cyclone that swept the Arctic in late December 2015-early January 2016, thinning and shrinking the sea ice cover. (NASA Goddard’s Scientific Visualization Studio/Alex Kekesi, data visualizer) «Read the rest of this article» Sections: Technology | No Comments
NASA Study reveals nearly one-fifth of Global Warming over the years has been missedWritten by Alan Buis
The study applied the quirks in the historical records to climate model output and then performed the same calculations on both the models and the observations to make the first true apples-to-apples comparison of warming rates. ![]() Difficulties in making weather measurements in the Arctic have led to underrepresentation of this rapidly warming area in historic temperature records. (British Columbia Ministry of Transport) «Read the rest of this article» Sections: Technology | No Comments
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