Assimilation modeling by using CCSM3 model

LING Tie-jun; WANG Zhang-gui; WANG Bing; CHEN Xing-rong

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LING Tie-jun, WANG Zhang-gui, WANG Bing, CHEN Xing-rong. Assimilation modeling by using CCSM3 model[J]. Haiyang Xuebao, 2009, 31(6): 9-21.

Citation:

LING Tie-jun, WANG Zhang-gui, WANG Bing, CHEN Xing-rong. Assimilation modeling by using CCSM3 model[J]. Haiyang Xuebao, 2009, 31(6): 9-21.

LING Tie-jun, WANG Zhang-gui, WANG Bing, CHEN Xing-rong. Assimilation modeling by using CCSM3 model[J]. Haiyang Xuebao, 2009, 31(6): 9-21.

Citation:

LING Tie-jun, WANG Zhang-gui, WANG Bing, CHEN Xing-rong. Assimilation modeling by using CCSM3 model[J]. Haiyang Xuebao, 2009, 31(6): 9-21.

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Assimilation modeling by using CCSM3 model

1.
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;National Marien Environmental Forecasting Center, Beijing 100081, China
2.
National Marien Environmental Forecasting Center, Beijing 100081, China
3.
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Received Date: 2008-12-15
Rev Recd Date: 2009-07-08

Abstract

Abstract

The Community Climate System Model version 3 (CCSM3) is of a project which is within the Climate & Global Dynamics Division (CGD) of the Earth and Sun Systems Laboratory (ESSL) at the National Center for Atmospheric Research (NCAR). It has recently been developed and released to the climate community. CCSM3 is a coupled climate model with components representing the atmosphere, ocean, sea ice, and land surface connected by a flux coupler. According temperature restoring of ocean component model POP, GODAS analysis sub-surface temperature data was assimilated to POP model by nudging method. The results of simulation from 1980 to 2000 indicate that the numerical results related to ENSO matched with observation very well including sea surface temperature, sea surface currents, precipitation, zonal wind and sea level pressure. It could simulate ocean and atmosphere temporal and spatial variations well in low latitude regions of Pacific. However, there were positive biases on sea surface temperature, precipitation and so on. One kind of bias is from oceanic or atmospheric model alone and the other one from dynamic and thermodynamic flux couple.
- CCSM3 model,
- nudging,
- assimilation

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References(22)

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