Atmospheric Circulation in the Canadian High Arctic
نویسندگان
چکیده
منابع مشابه
Atmospheric circulation patterns which promote winter Arctic sea ice decline
The impact of winter atmospheric blocking over the Ural Mountains region (UB) coincident with different phases of the North Atlantic Oscillation (NAO) on the sea ice variability over the Barents and Kara Seas (BKS) in winter is investigated. It is found that the UB in conjunction with the positive phase of the NAO (NAOþ) leads to the strongest sea ice decline. During this phase composites and t...
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Black carbon (BC) particles in the atmosphere have important impacts on climate. The amount of BC in the atmosphere must be carefully quantified to allow evaluation of the climate effects of this type of aerosol. In this study, we present the treatment of BC aerosol in the developmental version of the 4th generation Canadian Centre for Climate modelling and analysis (CCCma) atmospheric general ...
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The simulation of Arctic sea ice and surface winds changes significantly when CCSM3 resolution is increased from T42 ( 2.8 deg) to T85 ( 1.4 deg). At T42 resolution, Arctic sea ice is too thick off the Siberian coast and too thin along the Canadian coast. Both of these biases are reduced at T85 resolution. The most prominent surface wind difference is the erroneous North Polar summer anticyclon...
متن کاملArctic circulation regimes
Between 1948 and 1996, mean annual environmental parameters in the Arctic experienced a well-pronounced decadal variability with two basic circulation patterns: cyclonic and anticyclonic alternating at 5 to 7 year intervals. During cyclonic regimes, low sea-level atmospheric pressure (SLP) dominated over the Arctic Ocean driving sea ice and the upper ocean counterclockwise; the Arctic atmospher...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 1985
ISSN: 0260-3055,1727-5644
DOI: 10.1017/s0260305500006194