期刊
JOURNAL OF MARINE SYSTEMS
卷 123, 期 -, 页码 1-18出版社
ELSEVIER
DOI: 10.1016/j.jmarsys.2013.04.002
关键词
Western boundary currents; Ocean circulation; East China Sea; Phosphates; Upwelling; China, Zhejiang province
资金
- Chinese Academy of Sciences [KZCX2-EW-209]
- National Basic Research Program of China [2012CB956000]
- 973 Project [2009CB421205]
- Chinese Academy of Sciences Strategy Program [XDA10020104, XDA10020305]
- Global Change and Air-Sea Interaction
- National Natural Science Foundation of China [40976008]
- 100 talent programme of Chinese Academy of Sciences [KZCX2-YW-215-3]
- High Performance Computing Center
- Institute of Oceanology
- Chinese Academy of Sciences in Qingdao
- National Supercomputer Center in Jinan
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据