Factors influencing the climatological mixed layer depth in the South China Sea: numerical simulations

doi:10.1007/s00343-010-0002-6

IOCAS-IR > 海洋环流与波动重点实验室

	Factors influencing the climatological mixed layer depth in the South China Sea: numerical simulations
	Fan Conghui 1,2; Wang Juanjuan 1,2,3; Song Jinbao 1,2
	2010-09-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	28 期号:5 页码:1112-1118
文章类型	Article
摘要	The mixed layer depth (MLD) in the upper ocean is an important physical parameter for describing the upper ocean mixed layer. We analyzed several major factors influencing the climatological mixed layer depth (CMLD), and established a numerical simulation in the South China Sea (SCS) using the Regional Ocean Model System (ROMS) with a high-resolution (1/12A degrees x1/12A degrees) grid nesting method and 50 vertical layers. Several ideal numerical experiments were tested by modifying the existing sea surface boundary conditions. Especially, we analyzed the sensitivity of the results simulated for the CMLD with factors of sea surface wind stress (SSWS), sea surface net heat flux (SSNHF), and the difference between evaporation and precipitation (DEP). The result shows that of the three factors that change the depth of the CMLD, SSWS is in the first place, when ignoring the impact of SSWS, CMLD will change by 26% on average, and its effect is always to deepen the CMLD; the next comes SSNHF (13%) for deepening the CMLD in October to January and shallowing the CMLD in February to September; and the DEP comes in the third (only 2%). Moreover, we analyzed the temporal and spatial characteristics of CMLD and compared the simulation result with the ARGO observational data. The results indicate that ROMS is applicable for studying CMLD in the SCS area.; The mixed layer depth (MLD) in the upper ocean is an important physical parameter for describing the upper ocean mixed layer. We analyzed several major factors influencing the climatological mixed layer depth (CMLD), and established a numerical simulation in the South China Sea (SCS) using the Regional Ocean Model System (ROMS) with a high-resolution (1/12A degrees x1/12A degrees) grid nesting method and 50 vertical layers. Several ideal numerical experiments were tested by modifying the existing sea surface boundary conditions. Especially, we analyzed the sensitivity of the results simulated for the CMLD with factors of sea surface wind stress (SSWS), sea surface net heat flux (SSNHF), and the difference between evaporation and precipitation (DEP). The result shows that of the three factors that change the depth of the CMLD, SSWS is in the first place, when ignoring the impact of SSWS, CMLD will change by 26% on average, and its effect is always to deepen the CMLD; the next comes SSNHF (13%) for deepening the CMLD in October to January and shallowing the CMLD in February to September; and the DEP comes in the third (only 2%). Moreover, we analyzed the temporal and spatial characteristics of CMLD and compared the simulation result with the ARGO observational data. The results indicate that ROMS is applicable for studying CMLD in the SCS area.
关键词	Mixed Layer Depth (Mld) South China Sea (Scs) Wind Stress Net Heat Flux Evaporation Precipitation Regional Ocean Model System (Roms)
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-010-0002-6
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000281711600021
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/5276
专题	海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, KLOCAW, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
第一作者单位	中国科学院海洋研究所; 海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Fan Conghui,Wang Juanjuan,Song Jinbao. Factors influencing the climatological mixed layer depth in the South China Sea: numerical simulations[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2010,28(5):1112-1118.
APA	Fan Conghui,Wang Juanjuan,&Song Jinbao.(2010).Factors influencing the climatological mixed layer depth in the South China Sea: numerical simulations.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,28(5),1112-1118.
MLA	Fan Conghui,et al."Factors influencing the climatological mixed layer depth in the South China Sea: numerical simulations".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 28.5(2010):1112-1118.

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