Atmospheric aging enhances the ice nucleation ability of biomass-burning aerosol.
Atmospheric aging enhances the ice nucleation ability of biomass-burning aerosol.
复制标题
大气老化增强了生物质燃烧气溶胶的冰成核能力。
DOI：
10.1126/sciadv.abd3440
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发表时间：
2021-03
期刊：
影响因子：
13.6
通讯作者：
Sullivan RC
中科院分区：
文献类型：
--
作者：
Jahl LG;Brubaker TA;Polen MJ;Jahn LG;Cain KP;Bowers BB;Fahy WD;Graves S;Sullivan RC
随着羽流在大气中的稀释和老化，燃烧生物质的烟雾颗粒对冰川云的影响会增加。最近发现，生物质燃烧气溶胶（BBA）中的冰核粒子（INPs）影响云冰川作用、微物理、降水和辐射强迫，是由矿物相的产生驱动的。随着烟羽的稀释，BBA经历了广泛的化学老化，我们通过在室内反应堆中模拟真实BBA的大气老化来探索这如何改变烟雾的冰活性。出乎意料的是，对于大多数类型的燃料和老化方案，大气老化增强了冰的活动性。通过蒸发或氧化或溶解去除掩盖矿物基冰活性位点的有机碳颗粒涂层可以将冰活性提高一个数量级以上。这代表了从生物质燃烧开始的INP演化的不同框架，其中BBA随着稀释和老化而变得更加活跃，对INP预算做出更大的贡献，导致云微物理和气候强迫，而不是目前所考虑的。
Ability of biomass-burning smoke particles to glaciate clouds increases as the plume undergoes atmospheric dilution and aging. Ice-nucleating particles (INPs) in biomass-burning aerosol (BBA) that affect cloud glaciation, microphysics, precipitation, and radiative forcing were recently found to be driven by the production of mineral phases. BBA experiences extensive chemical aging as the smoke plume dilutes, and we explored how this alters the ice activity of the smoke using simulated atmospheric aging of authentic BBA in a chamber reactor. Unexpectedly, atmospheric aging enhanced the ice activity for most types of fuels and aging schemes. The removal of organic carbon particle coatings that conceal the mineral-based ice-active sites by evaporation or oxidation then dissolution can increase the ice activity by greater than an order of magnitude. This represents a different framework for the evolution of INPs from biomass burning where BBA becomes more ice active as it dilutes and ages, making a larger contribution to the INP budget, resulting cloud microphysics, and climate forcing than is currently considered.
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DOI：
10.1175/amsmonographs-d-16-0006.1
发表时间：
2017-01-01
期刊：
ICE FORMATION AND EVOLUTION IN CLOUDS AND PRECIPITATION: MEASUREMENT AND MODELING CHALLENGES
影响因子：
--
作者：
Kanji, Zamin A.;Ladino, Luis A.;Kraemer, Martina
通讯作者：
Kraemer, Martina
影响因子：
4.4
作者：
Kulkarni, Gourihar;Sanders, Cassandra;Zhao, Chun
通讯作者：
Zhao, Chun
影响因子：
21.8
作者：
Kroll, Jesse H.;Donahue, Neil M.;Worsnop, Douglas R.
通讯作者：
Worsnop, Douglas R.
影响因子：
6.3
作者：
Hennigan, C. J.;Miracolo, M. A.;Robinson, A. L.
通讯作者：
Robinson, A. L.
影响因子：
6.7
作者：
Cziczo, Daniel J.;Froyd, Karl D.;Murphy, Daniel M.
通讯作者：
Murphy, Daniel M.