Numerical study on the origins and the forcing mechanism of the phosphate in upwelling areas off the coast of Zhejiang province, China in summer

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Numerical study on the origins and the forcing mechanism of the phosphate in upwelling areas off the coast of Zhejiang province, China in summer
	Yang, Dezhou 1,2; Yin, Baoshu 1,2; Sun, Junchuan1,2,3 ; Zhang, Yong 4
刊名	JOURNAL OF MARINE SYSTEMS
	2013-08-01
卷号	123 页码:1-18
关键词	Western boundary currents Ocean circulation East China Sea Phosphates Upwelling China Zhejiang province
ISSN号	0924-7963
通讯作者	Yin, BS
中文摘要	Off the coast of Zhejiang province, China, algal blooms are frequently observed where the phosphate seems to be an essential ingredient to dominate the growth of the phytoplankton in summer. Therefore, the observed high phosphate distributions off the coast of Zhejiang are closely examined to find out the dominant phosphate origin as well as the underlying forcing mechanism in summer. The observed phosphate distribution has been faithfully reproduced by our numerical model based on the Regional Ocean model System (ROMS). Then, on the basis of the numerical experiments as well as the observations, we propose that the phosphate off the coast of Zhejiang mainly originates from the deep sea water in a special area (122.1 degrees E-z122.5 degrees E, 130 m-300 m deep) along 24.9 degrees N northeast of Taiwan. Also, the forcing mechanism is clearly illustrated. In the bottom water of southern East China Sea, huge phosphate is continuously transported to the area off the coast of Zhejiang by a nearshore Kuroshio branch current which links the phosphate-rich deep sea water to the bottom water off the coast of Zhejiang. Then, off the coast of Zhejiang the transported phosphate-rich water is further upwelled to the surface water due to an upwelling just off the coast of Zhejiang. Then, the upwelled phosphate-rich water is transported offshore in the surface water by the north-eastward flowing Taiwan Warm Current, forming a high phosphate tongue which can be easily utilized by the phytoplankton and then immediately explains the observed high chlorophyll tongue off the coast of Zhejiang. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
英文摘要	Off the coast of Zhejiang province, China, algal blooms are frequently observed where the phosphate seems to be an essential ingredient to dominate the growth of the phytoplankton in summer. Therefore, the observed high phosphate distributions off the coast of Zhejiang are closely examined to find out the dominant phosphate origin as well as the underlying forcing mechanism in summer. The observed phosphate distribution has been faithfully reproduced by our numerical model based on the Regional Ocean model System (ROMS). Then, on the basis of the numerical experiments as well as the observations, we propose that the phosphate off the coast of Zhejiang mainly originates from the deep sea water in a special area (122.1 degrees E-z122.5 degrees E, 130 m-300 m deep) along 24.9 degrees N northeast of Taiwan. Also, the forcing mechanism is clearly illustrated. In the bottom water of southern East China Sea, huge phosphate is continuously transported to the area off the coast of Zhejiang by a nearshore Kuroshio branch current which links the phosphate-rich deep sea water to the bottom water off the coast of Zhejiang. Then, off the coast of Zhejiang the transported phosphate-rich water is further upwelled to the surface water due to an upwelling just off the coast of Zhejiang. Then, the upwelled phosphate-rich water is transported offshore in the surface water by the north-eastward flowing Taiwan Warm Current, forming a high phosphate tongue which can be easily utilized by the phytoplankton and then immediately explains the observed high chlorophyll tongue off the coast of Zhejiang. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
学科主题	Geology ; Marine & Freshwater Biology ; Oceanography
WOS标题词	Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine
类目[WOS]	Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
研究领域[WOS]	Geology ; Marine & Freshwater Biology ; Oceanography
关键词[WOS]	CHANGJIANG YANGTZE-RIVER ; SEA CONTINENTAL-SHELF ; CHEMICAL HYDROGRAPHY ; CHLOROPHYLL-A ; NUTRIENT DYNAMICS ; OXYGEN DEPLETION ; TAIWAN STRAIT ; CROSS-SHELF ; EAST ; KUROSHIO
收录类别	SCI
原文出处	10.1016/j.jmarsys.2013.04.002
语种	英语
WOS记录号	WOS:000320681800001
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16421]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Yang, Dezhou,Yin, Baoshu,Sun, Junchuan,et al. Numerical study on the origins and the forcing mechanism of the phosphate in upwelling areas off the coast of Zhejiang province, China in summer[J]. JOURNAL OF MARINE SYSTEMS,2013,123:1-18.
APA	Yang, Dezhou,Yin, Baoshu,Sun, Junchuan,&Zhang, Yong.(2013).Numerical study on the origins and the forcing mechanism of the phosphate in upwelling areas off the coast of Zhejiang province, China in summer.JOURNAL OF MARINE SYSTEMS,123,1-18.
MLA	Yang, Dezhou,et al."Numerical study on the origins and the forcing mechanism of the phosphate in upwelling areas off the coast of Zhejiang province, China in summer".JOURNAL OF MARINE SYSTEMS 123(2013):1-18.