Will black carbon mitigation dampen aerosol indirect forcing?
Will black carbon mitigation dampen aerosol indirect forcing?
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DOI：
10.1029/2010gl042886
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发表时间：
2010-05-01
影响因子：
5.2
通讯作者：
Seinfeld, J. H.
中科院分区：
文献类型：
--
作者：
Chen, W. -T.;Lee, Y. H.;Seinfeld, J. H.
如果黑碳（BC）颗粒物的减少伴随着颗粒数量排放的减少，从而导致全球云凝核（CCN）浓度的降低，则导致全球云辐射强迫（反向“云反照率效应”）的减少。我们考虑目前的两种缓解方案：化石燃料燃烧（称为 HF）产生的原生黑碳/有机碳 (BC/OC) 质量和数量排放量减少 50%，所有原生碳源（化石燃料、家用生物燃料和生物质燃烧）（称为 HC）产生的原生 BC/OC 质量和数量排放量减少 50%。这些情景的辐射强迫效应通过当今的平衡气候模拟进行评估。相对于当前条件，这两种情景的全球平均大气层顶部辐射强迫变化分别为+0.13 +/- 0.33 W m(-2) (HF) 和+0.31 +/- 0.33 W m(-2) (HC)。引用：Chen, W.-T.、Y. H. Lee、P. J. Adams、A. Nenes 和 J. H. Seinfeld (2010)，黑碳缓解会抑制气溶胶间接强迫吗？，地球物理学。资源。快报，37，L09801，doi：10.1029/2010GL042886。
If mitigation of black carbon (BC) particulate matter is accompanied by a decrease in particle number emissions, and thereby by a decrease in global cloud condensation nuclei (CCN) concentrations, a decrease in global cloud radiative forcing (a reverse "cloud albedo effect") results. We consider two present-day mitigation scenarios: 50% reduction of primary black carbon/organic carbon (BC/OC) mass and number emissions from fossil fuel combustion (termed HF), and 50% reduction of primary BC/OC mass and number emissions from all primary carbonaceous sources (fossil fuel, domestic biofuel, and biomass burning) (termed HC). Radiative forcing effects of these scenarios are assessed through present-day equilibrium climate simulations. Global average top-of-the-atmosphere changes in radiative forcing for the two scenarios, relative to present day conditions, are +0.13 +/- 0.33 W m(-2) (HF) and +0.31 +/- 0.33 W m(-2) (HC). Citation: Chen, W.-T., Y. H. Lee, P. J. Adams, A. Nenes, and J. H. Seinfeld (2010), Will black carbon mitigation dampen aerosol indirect forcing?, Geophys. Res. Lett., 37, L09801, doi: 10.1029/2010GL042886.