气候变化领域集成服务门户(CCPortal): Aerosol-cloud-climate cooling overestimated by ship-track data

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DOI	10.1126/science.abd3980
	Aerosol-cloud-climate cooling overestimated by ship-track data
	Glassmeier F.; Hoffmann F.; Johnson J.S.; Yamaguchi T.; Carslaw K.S.; Feingold G.
发表日期	2021
ISSN	0036-8075
起始页码	485
结束页码	489
卷号	371 期号:6528
英文摘要	The effect of anthropogenic aerosol on the reflectivity of stratocumulus cloud decks through changes in cloud amount is a major uncertainty in climate projections. In frequently occurring nonprecipitating stratocumulus, cloud amount can decrease through aerosol-enhanced cloud-top mixing. The climatological relevance of this effect is debated because ship exhaust only marginally reduces stratocumulus amount. By comparing detailed numerical simulations with satellite analyses, we show that ship-track studies cannot be generalized to estimate the climatological forcing of anthropogenic aerosol. The ship track-derived sensitivity of the radiative effect of nonprecipitating stratocumulus to aerosol overestimates their cooling effect by up to 200%. The offsetting warming effect of decreasing stratocumulus amount needs to be taken into account if we are to constrain the cloud-mediated radiative forcing of anthropogenic aerosol. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	aerosol; climate forcing; cloud radiative forcing; cooling; data set; satellite data; stratocumulus; volcanic cloud; aerosol; article; computer simulation; cooling; radiative forcing; warming
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243816
作者单位	Department of Geoscience and Remote Sensing, Delft University of Technology, P.O. Box 5048, Delft, 2600 GA, Netherlands; Department of Environmental Sciences, Wageningen University, P.O. Box 47, Wageningen, 6700 AA, Netherlands; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO 80309, United States; NOAA Chemical Sciences Laboratory, 325 Broadway, Boulder, CO 80305, United States; Institut für Meteorologie, Ludwig-Maximilians-Universität, Theresienstrasse 37, München, 80333, Germany; School of Earth and Environment, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, United Kingdom
推荐引用方式 GB/T 7714	Glassmeier F.,Hoffmann F.,Johnson J.S.,et al. Aerosol-cloud-climate cooling overestimated by ship-track data[J],2021,371(6528).
APA	Glassmeier F.,Hoffmann F.,Johnson J.S.,Yamaguchi T.,Carslaw K.S.,&Feingold G..(2021).Aerosol-cloud-climate cooling overestimated by ship-track data.Science,371(6528).
MLA	Glassmeier F.,et al."Aerosol-cloud-climate cooling overestimated by ship-track data".Science 371.6528(2021).