Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL079873 |
Evidence for Changes in Arctic Cloud Phase Due to Long-Range Pollution Transport | |
Coopman, Q.1,2,3; Riedi, J.1; Finch, D. P.4; Garrett, T. J.2 | |
2018-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:19页码:10709-10718 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA; Germany; Scotland |
英文摘要 | Reduced precipitation rates allow pollution within air parcels from midlatitudes to reach the Arctic without being scavenged. We use satellite and tracer transport model data sets to evaluate the degree of supercooling required for 50% of a chosen ensemble of low-level clouds to be in the ice phase for a given meteorological regime. Our results suggest that smaller cloud droplet effective radii are related to higher required amounts of supercooling but that, overall, pollution plumes from fossil fuel combustion lower the degree of supercooling that is required for freezing by approximately 4 degrees C. The relationship between anthropogenic plumes and the freezing transition temperature from liquid to ice remains to be explained. Plain Language Summary Anthropogenic pollution plumes from midlatitudes can be transported long distances to the Arctic. In this study, we analyze the impact of these plumes on how easily liquid clouds over the Arctic Ocean freeze by using a novel combination of satellite measurements and a pollution transport model. We find that liquid clouds in polluted air switch phase to become ice clouds at temperatures that are 4 degrees C higher they would otherwise in pristine air. Because ice clouds in the Arctic precipitate more easily than liquid clouds, the potential is that distant industrial pollution sources are acting to reduce arctic cloud life time. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448656800076 |
WOS关键词 | MICROPHYSICAL PROPERTIES ; AIR-POLLUTION ; ICE PARTICLES ; AEROSOL ; VARIABILITY ; MODEL ; EMISSIONS ; POLDER ; SMOKE ; IDENTIFICATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/27927 |
专题 | 气候变化 |
作者单位 | 1.Univ Lille, CNRS, UMR 8518, LOA, Lille, France; 2.Univ Utah, Dept Atmospher Sci, Salt Lake City, UT 84112 USA; 3.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany; 4.Univ Edinburgh, Sch Geosci, Edinburgh, Midlothian, Scotland |
推荐引用方式 GB/T 7714 | Coopman, Q.,Riedi, J.,Finch, D. P.,et al. Evidence for Changes in Arctic Cloud Phase Due to Long-Range Pollution Transport[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(19):10709-10718. |
APA | Coopman, Q.,Riedi, J.,Finch, D. P.,&Garrett, T. J..(2018).Evidence for Changes in Arctic Cloud Phase Due to Long-Range Pollution Transport.GEOPHYSICAL RESEARCH LETTERS,45(19),10709-10718. |
MLA | Coopman, Q.,et al."Evidence for Changes in Arctic Cloud Phase Due to Long-Range Pollution Transport".GEOPHYSICAL RESEARCH LETTERS 45.19(2018):10709-10718. |
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