气候变化领域集成服务门户(CCPortal): Using the Sigma-Pi Diagram to Analyze Water Masses in the Northern South China Sea in Spring

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DOI	10.1029/2019JC015676
	Using the Sigma-Pi Diagram to Analyze Water Masses in the Northern South China Sea in Spring
	Gao Y.; Huang R.X.; Zhu J.; Huang Y.; Hu J.
发表日期	2020
ISSN	21699275
卷号	125 期号:7
英文摘要	The temperature-salinity (T-S) diagram is widely used in water mass analysis, but the boundaries between water masses are vaguely distinguished by conventional T-S-based methods. Herein, we propose a new method based on the potential density-potential spicity (sigma-pi) diagram. The new method has been applied to the conductivity-temperature-depth data collected in the northern South China Sea during a spring cruise in 2011. The water masses in the study region are classified into 13 types according to both the standard deviation of potential spicity in each potential density layer and the water volumetric distribution in the sigma-pi space. The results suggest that this new method is reasonable and robust for classifying water masses in the sigma-pi space as compared to previous methods based on the traditional T-S space. In addition, the westward intrusion of the West Pacific Ocean water to the northern South China Sea can be clearly detected by the tongue-like potential spicity structure and relatively high potential spicity patches on potential density layers, further verifying the robustness and efficiency of our method in the water mass analysis. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	northern South China Sea; spicity; water mass
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186770
作者单位	State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China; CNRS, Univ. Lille, Univ. Littoral Cote d'Opale, UMR 8187, LOG, Laboratoire d'Océanologie et de Géosciences, Wimereux, France; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Fujian Engineering Research Center for Ocean Remote Sensing Big Data, Xiamen, China
推荐引用方式 GB/T 7714	Gao Y.,Huang R.X.,Zhu J.,et al. Using the Sigma-Pi Diagram to Analyze Water Masses in the Northern South China Sea in Spring[J],2020,125(7).
APA	Gao Y.,Huang R.X.,Zhu J.,Huang Y.,&Hu J..(2020).Using the Sigma-Pi Diagram to Analyze Water Masses in the Northern South China Sea in Spring.Journal of Geophysical Research: Oceans,125(7).
MLA	Gao Y.,et al."Using the Sigma-Pi Diagram to Analyze Water Masses in the Northern South China Sea in Spring".Journal of Geophysical Research: Oceans 125.7(2020).