Interpreting aerosol lifetimes
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منابع مشابه
Interpreting Aerosol Lifetimes Using the GEOS-Chem Model and Constraints from Radionuclide Measurements
Aerosol removal processes control global aerosol abundance, but the rate of that removal remains uncertain. A recent study of aerosol-bound radionuclide measurements after the Fukushima Dai-ichi nuclear power plant accident 5 documents Cs removal (e-folding) times of 10.0 to 13.9 days, suggesting that mean aerosol lifetimes in the range of 3-7 days in global models might be too short by a facto...
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Application of the variability-size relationship to atmospheric aerosol studies: estimating aerosol lifetimes and ages J. Williams, M. de Reus, R. Krejci, H. Fischer, and J. Ström Max Planck Institute for Chemistry, Mainz, Germany Institute of Applied Environmental Research (ITM), Stockholm University, Sweden Received: 12 October 2001 – Accepted: 14 November 2001 – Published: 18 January 2002 Co...
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Results from the first chemistry-transport model study of the impact of the 1783–1784 Laki fissure eruption (Iceland: 64 N, 17 W) upon atmospheric composition are presented. The eruption released an estimated 61 Tg(S) as SO2 into the troposphere and lower stratosphere. The model has a high resolution tropopause region, and detailed sulphur chemistry. The simulated SO2 plume spreads over much of...
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3 of basalt, and released an estimated 122 Tg of SO 2. The impact of this release upon the chemical composition of the atmosphere has been simulated with a global 3-D chemical-transport model. The model suggests that the SO 2 generated a sulphate aerosol veil over much of the northern hemisphere during the summer of 1783, in agreement with observations of a widespread`dry fog'. In the model, ov...
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Aerosol liquid water (ALW) influences aerosol radiative properties and the partitioning of gas-phase water-soluble organic compounds (WSOCg) to the condensed phase. A recent modeling study drew attention to the anthropogenic nature of ALW in the southeastern United States, where predicted ALW is driven by regional sulfate. Herein, we demonstrate that ALW in the Po Valley, Italy, is also anthrop...
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تاریخ انتشار 2013