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	Climate simulations with a new air-sea turbulent flux parameterization in the national center for atmospheric research community atmosphere model (cam3)
	Ban, Junmei1,2; Gao, Zhiqiu1; Lenschow, Donald H.3
刊名	Journal of geophysical research-atmospheres
	2010-01-08
卷号	115页码:16
ISSN号	2169-897X
DOI	10.1029/2009jd012802
通讯作者	Ban, junmei()
英文摘要	This study examines climate simulations with the national center for atmospheric research community atmosphere model version 3 (ncar cam3) using a new air-sea turbulent flux parameterization scheme. the current air-sea turbulent flux scheme in cam3 consists of three basic bulk flux equations that are solved simultaneously by an iterative computational technique. we recently developed a new turbulent flux parameterization scheme where the obukhov stability length is parameterized directly by using a bulk richardson number, an aerodynamic roughness length, and a heat roughness length. its advantages are that it (1) avoids the iterative process and thus increases the computational efficiency, (2) takes account of the difference between z(0m) and z(0h) and allows large z(0m)/z(0h), and (3) preserves the accuracy of iteration. an offline test using tropical ocean-global atmosphere coupled ocean-atmosphere response experiment (toga coare) data shows that the original scheme overestimates the surface fluxes under very weak winds but the new scheme gives better results. under identical initial and boundary conditions, the original cam3 and cam3 coupled with the new turbulent flux scheme are used to simulate the global distribution of air-sea surface turbulent fluxes, and precipitation. comparisons of model outputs against the european remote sensing satellites (ers), the objectively analyzed air-sea fluxes (oaflux), and climate prediction center (cpc) merged analysis of precipitation (cmap) show that: (1) the new scheme produces more realistic surface wind stress in the north pacific and north atlantic trade wind belts and wintertime extratropical storm track regions; (2) the latent heat flux in the northern hemisphere trade wind zones shows modest improvement in the new scheme, and the latent heat flux bias in the western boundary current region of the gulf stream is reduced; and (3) the simulated precipitation in the new scheme is closer to observation in the asian monsoon region.
WOS关键词	OBUKHOV STABILITY PARAMETER ; BULK AERODYNAMIC ALGORITHMS ; SURFACE-LAYER ; DYNAMICAL SIMULATION ; RICHARDSON-NUMBER ; BOUNDARY-LAYER ; HEAT FLUXES ; OCEAN ; LATENT ; CCM3
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000273506700002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2413544
专题	中国科学院大学
通讯作者	Ban, Junmei
作者单位	1.Chinese Acad Sci, State Key Lab Atmospher Boundary Layer Phys & Atm, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100029, Peoples R China 3.Natl Ctr Atmospher Res, Mesoscale & Meteorol Div, Boulder, CO 80307 USA
推荐引用方式 GB/T 7714	Ban, Junmei,Gao, Zhiqiu,Lenschow, Donald H.. Climate simulations with a new air-sea turbulent flux parameterization in the national center for atmospheric research community atmosphere model (cam3)[J]. Journal of geophysical research-atmospheres,2010,115:16.
APA	Ban, Junmei,Gao, Zhiqiu,&Lenschow, Donald H..(2010).Climate simulations with a new air-sea turbulent flux parameterization in the national center for atmospheric research community atmosphere model (cam3).Journal of geophysical research-atmospheres,115,16.
MLA	Ban, Junmei,et al."Climate simulations with a new air-sea turbulent flux parameterization in the national center for atmospheric research community atmosphere model (cam3)".Journal of geophysical research-atmospheres 115(2010):16.

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