Assessing the effects of anthropogenic aerosols on Pacific storm track   using a multiscale global climate model

doi:10.1073/pnas.1403364111

CORC > 北京大学 > 环境科学与工程学院

	Assessing the effects of anthropogenic aerosols on Pacific storm track using a multiscale global climate model
	Wang, Yuan ; Wang, Minghuai ; Zhang, Renyi ; Ghan, Steven J. ; Lin, Yun ; Hu, Jiaxi ; Pan, Bowen ; Levy, Misti ; Jiang, Jonathan H. ; Molina, Mario J.
刊名	proceedings of the national academy of sciences of the united states of america
	2014
关键词	aerosol-cloud-climate interaction convective storms, cloud invigoration LONG-TERM IMPACTS PNNL-MMF PRECIPITATION INTENSIFICATION MICROPHYSICS ATMOSPHERE OXIDATION PRODUCT TROPICS CLOUDS
DOI	10.1073/pnas.1403364111
英文摘要	Atmospheric aerosols affect weather and global general circulation by modifying cloud and precipitation processes, but the magnitude of cloud adjustment by aerosols remains poorly quantified and represents the largest uncertainty in estimated forcing of climate change. Here we assess the effects of anthropogenic aerosols on the Pacific storm track, using a multiscale global aerosol-climate model (GCM). Simulations of two aerosol scenarios corresponding to the present day and preindustrial conditions reveal long-range transport of anthropogenic aerosols across the north Pacific and large resulting changes in the aerosol optical depth, cloud droplet number concentration, and cloud and ice water paths. Shortwave and long-wave cloud radiative forcing at the top of atmosphere are changed by -2.5 and +1.3 W m(-2), respectively, by emission changes from preindustrial to present day, and an increased cloud top height indicates invigorated midlatitude cyclones. The overall increased precipitation and poleward heat transport reflect intensification of the Pacific storm track by anthropogenic aerosols. Hence, this work provides, for the first time to the authors' knowledge, a global perspective of the effects of Asian pollution outflows from GCMs. Furthermore, our results suggest that the multiscale modeling framework is essential in producing the aerosol invigoration effect of deep convective clouds on a global scale.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000335798000044&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Multidisciplinary Sciences; SCI(E); PubMed; 39; ARTICLE; renyi-zhang@tamu.edu; mjmolina@ucsd.edu; 19; 6894-6899; 111
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/189516]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Wang, Yuan,Wang, Minghuai,Zhang, Renyi,et al. Assessing the effects of anthropogenic aerosols on Pacific storm track using a multiscale global climate model[J]. proceedings of the national academy of sciences of the united states of america,2014.
APA	Wang, Yuan.,Wang, Minghuai.,Zhang, Renyi.,Ghan, Steven J..,Lin, Yun.,...&Molina, Mario J..(2014).Assessing the effects of anthropogenic aerosols on Pacific storm track using a multiscale global climate model.proceedings of the national academy of sciences of the united states of america.
MLA	Wang, Yuan,et al."Assessing the effects of anthropogenic aerosols on Pacific storm track using a multiscale global climate model".proceedings of the national academy of sciences of the united states of america (2014).