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Author Chao Li

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Spring Cold Bias of SST and Minimal Wind Mixing in the Equatorial Pacific Cold Tongue

Atmospheric and Oceanic Science Letters, Volume 3 Number 6. Lin Peng-Fei; Liu Hai-Long; Li Chao; et al. - Science Press, 2010

The authors investigate the relationship between bias in simulated sea surface temperature (SST) in the equatorial eastern Pacific cold tongue during the boreal spring as simulated by an oceanic general circulation model (OGCM) and minimal wind mixing (MWM) at the surface. The cold bias of simulated SST is greatest during the boreal spring, at approximately 3°C. A sensitivity experiment reducing MWM by one order of magnitude greatly alleviates cold biases, especially in March-April. The decrease in bias is primarily due to weakened vertical mixing, which preserves heat in the uppermost layer a ...

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[article]
Spring Cold Bias of SST and Minimal Wind Mixing in the Equatorial Pacific Cold Tongue

Available online: http://www.iapjournals.ac.cn/aosl/ch/reader/view_abstract.aspx?file_no=AOSL10057
Peng-Fei Lin ; Hai-Long Liu ; Chao Li ; Xue-Hong Zhqng

in Atmospheric and Oceanic Science Letters > Volume 3 Number 6 (16 November 2010) . - p.342-346
The authors investigate the relationship between bias in simulated sea surface temperature (SST) in the equatorial eastern Pacific cold tongue during the boreal spring as simulated by an oceanic general circulation model (OGCM) and minimal wind mixing (MWM) at the surface. The cold bias of simulated SST is greatest during the boreal spring, at approximately 3°C. A sensitivity experiment reducing MWM by one order of magnitude greatly alleviates cold biases, especially in March-April. The decrease in bias is primarily due to weakened vertical mixing, which preserves heat in the uppermost layer and results in warmer simulated SST. The reduction in vertical mixing also leads to a weak westward current in the upper layer, which further contributes to warmer SST estimates. These findings imply that there are large uncertainties about simple model parameters such as MWM at the oceanic surface.

Language(s): English

Format: Digital (Free), Hard copy
Tags: Temperature anomaly ; Severe cold ; Meteorology ; Observations ; Spring ; Weather ; Wind ; Region V - South-West Pacific Add tag

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