Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-14949-2018 |
A satellite-based estimate of combustion aerosol cloud microphysical effects over the Arctic Ocean | |
Zamora, Lauren M.1,2; Kahn, Ralph A.2; Huebert, Klaus B.3; Stohl, Andreas4; Eckhardt, Sabine4 | |
2018-10-18 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:20页码:14949-14964 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Norway |
英文摘要 | Climate predictions for the rapidly changing Arctic are highly uncertain, largely due to a poor understanding of the processes driving cloud properties. In particular, cloud fraction (CF) and cloud phase (CP) have major impacts on energy budgets, but are poorly represented in most models, often because of uncertainties in aerosol-cloud interactions. Here, we use over 10 million satellite observations coupled with aerosol transport model simulations to quantify large-scale microphysical effects of aerosols on CF and CP over the Arctic Ocean during polar night, when direct and semi-direct aerosol effects are minimal Combustion aerosols over sea ice are associated with very large (similar to 10 W m(-2)) differences in long-wave cloud radiative effects at the sea ice surface. However, co-varying meteorological changes on factors such as CF likely explain the majority of this signal. For example, combustion aerosols explain at most 40 % of the CF differences between the full dataset and the clean-condition subset, compared to between 57 % and 91 % of the differences that can be predicted by co-varying meteorology. After normalizing for meteorological regime, aerosol microphysical effects have small but significant impacts on CF, CP, and precipitation frequency on an Arctic-wide scale. These effects indicate that dominant aerosol-cloud microphysical mechanisms are related to the relative fraction of liquid-containing clouds, with implications for a warming Arctic. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447744000001 |
WOS关键词 | MIXED-PHASE CLOUDS ; DISPERSION MODEL FLEXPART ; LARGE-EDDY SIMULATIONS ; SEA-ICE ; VERTICAL-DISTRIBUTION ; LIQUID CLOUDS ; SURFACE OBSERVATIONS ; CALIPSO OBSERVATIONS ; CONDENSATION NUCLEI ; POLLUTION TRANSPORT |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/28374 |
专题 | 地球科学 |
作者单位 | 1.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; 2.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 3.Univ Maryland, Horn Point Lab, Ctr Environm Sci, Cambridge, MD USA; 4.NILU Norwegian Inst Air Res, Kjeller, Norway |
推荐引用方式 GB/T 7714 | Zamora, Lauren M.,Kahn, Ralph A.,Huebert, Klaus B.,et al. A satellite-based estimate of combustion aerosol cloud microphysical effects over the Arctic Ocean[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(20):14949-14964. |
APA | Zamora, Lauren M.,Kahn, Ralph A.,Huebert, Klaus B.,Stohl, Andreas,&Eckhardt, Sabine.(2018).A satellite-based estimate of combustion aerosol cloud microphysical effects over the Arctic Ocean.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(20),14949-14964. |
MLA | Zamora, Lauren M.,et al."A satellite-based estimate of combustion aerosol cloud microphysical effects over the Arctic Ocean".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.20(2018):14949-14964. |
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