Model test of a new air-sea turbulent flux parameterization scheme

BAN Jun-mei; HU Yan-bing; LI Yu-bin; XU Xiao-hui; SUN Yan

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BAN Jun-mei, HU Yan-bing, LI Yu-bin, XU Xiao-hui, SUN Yan. Model test of a new air-sea turbulent flux parameterization scheme[J]. Haiyang Xuebao, 2010, 32(6): 72-82.

Citation:

BAN Jun-mei, HU Yan-bing, LI Yu-bin, XU Xiao-hui, SUN Yan. Model test of a new air-sea turbulent flux parameterization scheme[J]. Haiyang Xuebao, 2010, 32(6): 72-82.

BAN Jun-mei, HU Yan-bing, LI Yu-bin, XU Xiao-hui, SUN Yan. Model test of a new air-sea turbulent flux parameterization scheme[J]. Haiyang Xuebao, 2010, 32(6): 72-82.

Citation:

BAN Jun-mei, HU Yan-bing, LI Yu-bin, XU Xiao-hui, SUN Yan. Model test of a new air-sea turbulent flux parameterization scheme[J]. Haiyang Xuebao, 2010, 32(6): 72-82.

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Model test of a new air-sea turbulent flux parameterization scheme

1.
State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, CAS, Beijing 100029, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China
2.
State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, CAS, Beijing 100029, China; Institute of Aeronautical Meteorology, Air Force Academy of Equipment, Beijing 100085, China; Shanxi Meteor
3.
Shanxi Meteorological Bureau, Taiyuan, 030002, China

Received Date: 2009-04-12
Rev Recd Date: 2010-11-19

Abstract

Abstract

A new turbulent flux parameterization scheme has been incorporated into the Community Atmosphere Model version3 (CAM3). The global distribution of turbulent fluxes and precipitation, and the zonal means of latent heat flux and precipitation simulated by CAM3 coupled with the new scheme are compared to the counterparts simulated by the original CAM3. The results show that the outputs of the improved model are much more closely to ERS, ERA40 turbulent data and CMAP data than those of the original CAM3 model, especially the wind stress in the Northern Hemisphere trade wind region, and the latent heat flux and precipitation in Asia monsoon. Because the Obukhov stability parameter is parameterized directly by using bulk Richardson number, aerodynamic roughness length, and heat roughness length, the calculate efficiency increased.
- air-sea surface flux scheme,
- turbulent fluxes,
- precipitation

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