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Russia s increasing military flights around Alaska are a strain on our units, top US commander says

Russia s increasing military flights around Alaska are a strain on our units, top US commander says
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United statesJoshua tallisPacific arcticVladimir isachenkovDavid krummGlen vanherckAmerican aerospace defenseA us airSenate armed services committeeDefense writers groupUs air force senior airman james richardsonAir forceAlaskan commandSoviet unionAir force associationAlaska air defense identification zone

NOAA Fisheries Alaska Fisheries Science Center Archives

New research provides a glimpse into the future to help Arctic fishing communities prepare for change. The Pacific Arctic is undergoing a rapid transformation. As temperatures rise and sea ice melts, some species will do better than others. A new study suggests that pink salmon may be one of those species. “Our results suggest that warming […]

United statesPacific arcticAlaska fisheries science centerFisherie alaska fisheries science centerSalmon may benefitPacific arctic warmsஒன்றுபட்டது மாநிலங்களில்பெஸிஃபிக் ஆர்க்டிக்அலாஸ்கா மீன்வளம் அறிவியல் மையம்சால்மன் இருக்கலாம் நன்மை

2020 Arctic Report Card: Sea ice loss, extreme wildfires | Earth

NOAA listed some of this year’s significant findings: – The average annual land-surface air temperature in the Arctic measured between October 2019 and September 2020 was the second-warmest since record-keeping began in 1900, and was responsible for driving a cascade of impacts across Arctic ecosystems during the year. Nine of the past 10 years saw air temperatures at least 1 degree C (1.8 degrees F) above the 1981-2010 mean. Arctic temperatures for the past six years have all exceeded previous records. – Extremely high temperatures across Siberia during spring 2020 resulted in the lowest June snow extent across the Eurasian Arctic observed in the past 54 years. – The 2020 Arctic minimum sea ice extent reached in September was the second-lowest in the satellite record. Overall thickness of the sea ice cover is also decreasing as Arctic ice has transformed from an older, thicker, and stronger ice mass to a younger, thinner more fragile ice mass in the past decade.

Arctic oceanBering straitRick thomanPacific arcticInternational arctic research centerArctic report cardVest groenlandEurasian arcticSakha republicReport cardஆர்க்டிக் கடல்பெரிங் சங்கடமானரிக் தோமன்பெஸிஃபிக் ஆர்க்டிக்சர்வதேச ஆர்க்டிக் ஆராய்ச்சி மையம்ஆர்க்டிக் அறிக்கை அட்டை

Delayed Arctic ice advance tracked back to atmospheric conditions near Alaska months prior

E-Mail IMAGE: Researchers aboard the research vessel Mirai watched water vapor rise from the Chukchi Sea, resembling the mist that rises from a hot bath in a cold room. The Pacific Ocean. view more Credit: Photo by Jun Inoue, National Institute of Polar Research, CC BY-SA. Experts in Japan recently discovered that atmospheric conditions near Alaska can affect sea ice conditions in the Arctic Ocean months later. The team used various data, including ship-based data from 2018, to uncover how a single atmospheric event over the northern Pacific Ocean caused significantly delayed sea ice formation in the Pacific Arctic region. Global warming is going on, so the global mean surface air temperature is increasing, but compared to that trend, the Arctic is warming twice or more as fast, said Assistant Professor Tsubasa Kodaira, first author of the recent research publication and an expert in applied physical oceanography from the University of Tokyo.

Tachikawa shiJapan generalUnited statesBering straitTsubasa kodairaBering seaArctic oceanPacific oceanPacific arcticTakuji wasedaJun inoueArctic environment research centerResearch contactsNational institute of polar researchSchool of frontier sciencesWaseda lab