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Atmospheric methane concentrations are 8–10% higher in the Arctic than in the Antarctic atmosphere. During cold glacier epochs, this gradient decreases to insignificant levels. [ 19 ] Land ecosystems are thought to be the main sources of this asymmetry, although it has been suggested in 2007 that "the role of the Arctic Ocean is significantly ...
The North Slope of Alaska (NSA) [4] atmospheric observatory provides data about cloud and radiative processes at high latitudes. This observatory includes a central facility at Barrow (known officially as Utqiaġvik ) and, to the east, the third ARM Mobile Facility at Oliktok Point.
Atmospheric methane removal is a category of potential approaches being researched to accelerate the breakdown of methane that is in the atmosphere, for the purpose of mitigating some of the impacts of climate change. [74] Atmospheric methane has increased since pre-industrial times from 0.7 ppm to 1.9 ppm. [75]
Globally averaged atmospheric concentration and its annual growth rate. [17] In April 2022, NOAA reported an annual increase in global atmospheric methane of 17 parts per billion (ppb) in 2021—averaging 1,895.7 ppb in that year—the largest annual increase recorded since systematic measurements began in 1983; the increase during 2020 was 15.3 ppb, itself a record increase.
Barrow Observatory [3] Point Barrow, Alaska United States 1973 2 2 Canadian High Arctic Research Station [4] (CHARS) campus Cambridge Bay, Nunavut Canada 2019 26 26 E. K. Fyodorov Hydrometeorological Observatory (ex Chelyuskin Polar Station) [5] Cape Chelyuskin, Krasnoyarsk Krai Russia Soviet Union 1932 Chetyrokhstolbovoy Polar Station [6]
Atmospheric methane removal is a category of potential approaches being researched to accelerate the breakdown of methane that is in the atmosphere, for the purpose of mitigating some of the impacts of climate change. [1] Atmospheric methane has increased since pre-industrial times from 0.7 ppm to 1.9 ppm. [2]
The former name Barrow was derived from Point Barrow and was originally a general designation because non-native Alaskan residents found it easier to pronounce than the Inupiat name. Point Barrow was named after Sir John Barrow of the British Admiralty by explorer Frederick William Beechey in 1825. A U.S. post office was established in 1901 ...
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