Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032239 |
Black Carbon and Precipitation: An Energetics Perspective | |
Sand, M.1; Samset, B. H.1; Tsigaridis, K.2,3; Bauer, S. E.2,3; Myhre, G.1 | |
2020-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; USA |
英文摘要 | Black carbon (BC) aerosols influence precipitation through a range of processes. The climate response to the presence of BC is however highly dependent on its vertical distribution. Here, we analyze the changes in the energy budget and precipitation impacts of adding a layer of BC at a range of altitudes in two independent global climate models. The models are run with atmosphere-only and slab ocean model setup to analyze both fast and slow responses, respectively. Globally, precipitation changes are tightly coupled to the energy budget. We decompose the precipitation change into contributions from absorption of solar radiation, atmospheric longwave radiative cooling, and sensible heat flux at the surface. We find that for atmosphere-only simulations, BC rapidly suppresses precipitation, independent of altitude, mainly because of strong atmospheric absorption. This reduction is offset by increased atmospheric radiative longwave cooling and reduced sensible heat flux at the surface, but not of sufficient magnitude to prevent reduced precipitation. On longer timescales, when the surface temperature is allowed to respond, we find that the precipitation increase associated with surface warming can compensate for the initial reduction, particularly for BC in the lower atmosphere. Even though the underlying processes are strikingly similar in the two models, the resulting change in precipitation and temperature by BC differ quite substantially. |
英文关键词 | black carbon aerosols rapid adjustments precipitation energy budget |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551484700037 |
WOS关键词 | CLIMATE ; AEROSOLS ; CLOUDS ; IMPACT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/289511 |
专题 | 气候变化 |
作者单位 | 1.CICERO Ctr Int Climate Res Oslo, Oslo, Norway; 2.Columbia Univ, Ctr Climate Syst Res, New York, NY USA; 3.NASA, Goddard Inst Space Studies, New York, NY 10025 USA |
推荐引用方式 GB/T 7714 | Sand, M.,Samset, B. H.,Tsigaridis, K.,et al. Black Carbon and Precipitation: An Energetics Perspective[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(13). |
APA | Sand, M.,Samset, B. H.,Tsigaridis, K.,Bauer, S. E.,&Myhre, G..(2020).Black Carbon and Precipitation: An Energetics Perspective.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(13). |
MLA | Sand, M.,et al."Black Carbon and Precipitation: An Energetics Perspective".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.13(2020). |
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