Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
| 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, Dezhou1,2; Yin, Baoshu1,2; Sun, Junchuan1,2,3 ; Zhang, Yong4; Yin, BS
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| 2013-08-01 | |
| 发表期刊 | JOURNAL OF MARINE SYSTEMS
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| ISSN | 0924-7963 |
| 卷号 | 123页码:1-18 |
| 文章类型 | Article |
| 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.; 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. |
| 关键词 | Western Boundary Currents Ocean Circulation East China Sea Phosphates Upwelling China Zhejiang Province |
| 学科领域 | Geology ; Marine & Freshwater Biology ; Oceanography |
| DOI | 10.1016/j.jmarsys.2013.04.002 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geology ; Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography |
| WOS记录号 | WOS:000320681800001 |
| WOS关键词 | CHANGJIANG YANGTZE-RIVER ; SEA CONTINENTAL-SHELF ; CHEMICAL HYDROGRAPHY ; CHLOROPHYLL-A ; NUTRIENT DYNAMICS ; OXYGEN DEPLETION ; TAIWAN STRAIT ; CROSS-SHELF ; EAST ; KUROSHIO |
| WOS标题词 | Science & Technology ; Physical Sciences ; Life Sciences & Biomedicine |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16421 |
| 专题 | 海洋环流与波动重点实验室 |
| 通讯作者 | Yin, BS |
| 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 |
| 第一作者单位 | 海洋环流与波动重点实验室; 中国科学院海洋研究所 |
| 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,&Yin, BS.(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. |
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| Numerical study on t（3338KB） | 限制开放 | CC BY-NC-SA | 浏览 | |||
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