Long-time observation of annual variation of Taiwan Strait upwelling in summer season
Tang, DL; Kawamura, H; Guan, L; lingzistdl@yahoo.com
2004
发表期刊MONITORING OF CHANGES RELATED TO NATURAL AND MANMADE HAZARDS USING SPACE TECHNOLOGY
ISSN0273-1177
卷号33期号:3页码:307-312
摘要The Taiwan Strait is between Taiwan Island and Mainland China, where several upwelling zones are well known for good fishing grounds. Earlier studies in the strait have been conducted on detecting upwelling by ship measurements with short-term cruises, but long-term variations of upwelling in this region are not understood. The present paper examines satellite images for a long-time observation of two major upwelling zones in the Taiwan Strait: Taiwan Bank upwelling (TBU) and Dongshan Upwelling (DSU). Sea surface temperature (SST) and chlorophyll a (Chl-a) images have been analyzed for summer months (June, July, and August) from 1980 to 2002. Results reveal annual variation of two upwelling zones. These two upwelling zones occur every year characterized with distinct low water temperature and high Chl-a concentrations. During the period from 1989 to 1998, SST is found to be 1.15 degreesC lower in TBU, and 1.42 degreesC lower in the DSU than the Taiwan Strait. The size of DSU has been found to be larger during summer of 1989, 1990, 1993 and 1995; TBU has been found to be weak during summer of 1994 and 1997. Ocean color images obtained from CZCS, OCI, and SeaWiFS also show high Chl-a concentrations (0.8-2.5 Mg m(-3)) in two upwelling zones, which coincide with low SST in terms of location, shape, and time. These high Chl-a concentrations in TBU and DSU may be related to upwelling waters that bring nutrients from bottom to surface. The present results ASO show the potential of using satellite data for monitoring of ocean environment for long time period. (C) 2003 COSPAR. Published by Elsevier Ltd. All rights reserved.
部门归属Tohoku Univ, Sch Sci, Ctr Atmospher & Ocean Studies, Sendai, Miyagi 9808578, Japan; Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou, Peoples R China; Jinan Univ, Inst Hydrobiol, Guangzhou, Peoples R China; Ocean Univ Qingdao, Ocean Remote Sensing Inst, Qingdao, Peoples R China
关键词Taiwan Strait Upwelling Avhrr Sst Seawifs Chl-a China
学科领域Engineering, Aerospace ; Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
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收录类别sci
资助项目LED
WOS记录号WOS:000189505600012
引用统计
被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5643
专题热带海洋环境国家重点实验室(LTO)
通讯作者lingzistdl@yahoo.com
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GB/T 7714
Tang, DL,Kawamura, H,Guan, L,et al. Long-time observation of annual variation of Taiwan Strait upwelling in summer season[J]. MONITORING OF CHANGES RELATED TO NATURAL AND MANMADE HAZARDS USING SPACE TECHNOLOGY,2004,33(3):307-312.
APA Tang, DL,Kawamura, H,Guan, L,&lingzistdl@yahoo.com.(2004).Long-time observation of annual variation of Taiwan Strait upwelling in summer season.MONITORING OF CHANGES RELATED TO NATURAL AND MANMADE HAZARDS USING SPACE TECHNOLOGY,33(3),307-312.
MLA Tang, DL,et al."Long-time observation of annual variation of Taiwan Strait upwelling in summer season".MONITORING OF CHANGES RELATED TO NATURAL AND MANMADE HAZARDS USING SPACE TECHNOLOGY 33.3(2004):307-312.
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