How does the atmospheric variability drive the aerosol residence time in the Arctic region
作者： M Ménégoz , A Voldoire , H Teyssedre , D Salas y Mélia , V-H Peuch
DOI: 10.3402/TELLUSB.V64I0.11596
关键词:
摘要: This paper aims at characterizing the impact of atmospheric variability on aerosol burden and residence time in Arctic region. For this purpose, a global simulation using an emissions inventory from year 2000 is performed for period 2000-2005. The model thus describes 6-year evolution sulphate, black carbon (BC) mineral dust, whose driven by atmosphere only. Our validated thanks to comparisons with surface observations. takes minimum values fall: 4 days sulphate 8 BC dust. It maximum June: 10 16 However, one spring another, it can vary about 50% 40% 100% depending variability. In June, dust averaged over region reach respectively maximums 1.9 mg[S] m - ², 0.2 mg ² 6 characteristic so-called “Arctic haze”. From these 20% 10% 60% Keywords: aerosols; arctic; atmosphere; time; pollutant transport (Published: 24 January 2012) Citation: Tellus B 2012, 64 , 11596, DOI: 10.3402/tellusb.v64i0.11596
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