Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-621-2018 |
Response to marine cloud brightening in a multi-model ensemble | |
Stjern, Camilla W.1,2; Muri, Helene2; Ahlm, Lars2,3,4; Boucher, Olivier5; Cole, Jason N. S.6; Ji, Duoying7; Jones, Andy8; Haywood, Jim8; Kravitz, Ben9; Lenton, Andrew10; Moore, John C.7,11,12; Niemeier, Ulrike13; Phipps, Steven J.14; Schmidt, Hauke13; Watanabe, Shingo15; Kristjansson, Jon Egill2 | |
2018-01-19 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:2页码:621-634 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; Sweden; France; Canada; Peoples R China; England; USA; Australia; Finland; Germany; Japan |
英文摘要 | Here we show results from Earth system model simulations from the marine cloud brightening experiment G4cdnc of the Geoengineering Model Intercomparison Project (GeoMIP). The nine contributing models prescribe a 50% increase in the cloud droplet number concentration (CDNC) of low clouds over the global oceans in an experiment dubbed G4cdnc, with the purpose of counteracting the radiative forcing due to anthropogenic greenhouse gases under the RCP4.5 scenario. The model ensemble median effective radiative forcing (ERF) amounts to -1.9W m(-2), with a substantial inter-model spread of -0.6 to -2.5W m(-2). The large spread is partly related to the considerable differences in clouds and their representation between the models, with an underestimation of low clouds in several of the models. All models predict a statistically significant temperature decrease with a median of (for years 2020-2069) 0.96 [-0.17 to -1.21] K relative to the RCP4.5 scenario, with particularly strong cooling over low-latitude continents. Globally aver-aged there is a weak but significant precipitation decrease of -2.35 [-0.57 to -2.96]% due to a colder climate, but at low latitudes there is a 1.19% increase over land. This increase is part of a circulation change where a strong negative top-of-atmosphere (TOA) shortwave forcing over subtropical oceans, caused by increased albedo associated with the increasing CDNC, is compensated for by rising motion and positive TOA longwave signals over adjacent land regions. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423020400001 |
WOS关键词 | CLIMATE MODEL ; PART I ; PRECIPITATION ; IMPACT ; ALBEDO ; PARAMETERIZATION ; MICROPHYSICS ; SENSITIVITY ; INJECTION ; SCHEME |
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/16143 |
专题 | 地球科学 |
作者单位 | 1.CICERO, Oslo, Norway; 2.Univ Oslo, Dept Geosci, Oslo, Norway; 3.Stockholm Univ, Dept Meteorol, Stockholm, Sweden; 4.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden; 5.Univ Paris 06, Lab Meteorol Dynam, Paris, France; 6.Environm & Climate Change Canada, Canadian Ctr Climate Modelling & Anal, Victoria, BC, Canada; 7.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China; 8.Met Off Hadley Ctr, Exeter, Devon, England; 9.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA USA; 10.CSIRO Oceans & Atmosphere, Hobart, Tas, Australia; 11.Joint Ctr Global Change Studies, Beijing 100875, Peoples R China; 12.Univ Lapland, Arctic Ctr, POB 122, Rovaniemi 96101, Finland; 13.Max Planck Inst Meteorol, Hamburg, Germany; 14.Univ Tasmania, Inst Marine & Antarctic Studies, Hobart, Tas, Australia; 15.Japan Agcy Marine Earth Sci & Technol, Yokohama, Kanagawa, Japan |
推荐引用方式 GB/T 7714 | Stjern, Camilla W.,Muri, Helene,Ahlm, Lars,et al. Response to marine cloud brightening in a multi-model ensemble[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(2):621-634. |
APA | Stjern, Camilla W..,Muri, Helene.,Ahlm, Lars.,Boucher, Olivier.,Cole, Jason N. S..,...&Kristjansson, Jon Egill.(2018).Response to marine cloud brightening in a multi-model ensemble.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(2),621-634. |
MLA | Stjern, Camilla W.,et al."Response to marine cloud brightening in a multi-model ensemble".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.2(2018):621-634. |
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