Biases of five latent heat flux products and their impacts on mixed-layer temperature estimates in the South China Sea

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Biases of five latent heat flux products and their impacts on mixed-layer temperature estimates in the South China Sea
	Wang, X; Zhang, RW; Huang, J; Zeng, LL; Huang, F
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2017
卷号	122 期号:6 页码:5088-5104
通讯作者	hj@grmc.gov.cn
中文摘要	Five latent heat flux (LHF) products are evaluated based on in situ observations in the South China Sea (SCS), including the ECWMF ERA-Interim (ERA-I), the NCEP2, the Objectively Analyzed air-sea Fluxes (OAFlux), the Japanese 55 year Reanalysis (JRA55), and the TropFlux data sets. The results show that there are good correlations between the LHF products and observations, ranging from 0.68 to 0.74. However, mean biases of 28 to 40Wm(-2) exist in the LHF products with respect to the observations. For root-mean-square errors, the OAFlux data set is the closest to the observations, followed by ERA-I and TropFlux, while the NCEP2 data set shows significant overestimation. It is found that the biases in the near-surface-specific humidity are most correlated with the biases in the LHF products, followed by the biases in the near-surface wind speed, air temperature, and sea surface temperature. The biases in the LHF products have a prominent seasonal variation that is 25 W m(-2) higher in boreal winter than in summer. Using the thermal equation, it is shown that the tendency errors of the mixed-layer temperature estimated by the biases in the LHF products vary from 22.0 to 3.5 degrees C/month in the SCS. When all of the products are averaged, the errors are reduced to a range of 20.7 to 1.5 degrees C/month. It is noteworthy that the errors in summer are more obvious than those in winter, since a thinner mixed layer in the summer can amplify the effect of even a small bias in the LHF.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/16456]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Wang, X,Zhang, RW,Huang, J,et al. Biases of five latent heat flux products and their impacts on mixed-layer temperature estimates in the South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2017,122(6):5088-5104.
APA	Wang, X,Zhang, RW,Huang, J,Zeng, LL,&Huang, F.(2017).Biases of five latent heat flux products and their impacts on mixed-layer temperature estimates in the South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,122(6),5088-5104.
MLA	Wang, X,et al."Biases of five latent heat flux products and their impacts on mixed-layer temperature estimates in the South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 122.6(2017):5088-5104.