Long-time observation of annual variation of Taiwan Strait upwelling in summer season

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	Long-time observation of annual variation of Taiwan Strait upwelling in summer season
	Tang, DL ; Kawamura, H ; Guan, L
刊名	MONITORING OF CHANGES RELATED TO NATURAL AND MANMADE HAZARDS USING SPACE TECHNOLOGY
	2004
卷号	33 期号:3 页码:307-312
关键词	Taiwan Strait upwelling AVHRR SST SeaWiFS Chl-a China
ISSN号	0273-1177
通讯作者	lingzistdl@yahoo.com
中文摘要	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.
学科主题	Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences
收录类别	SCI
原文出处	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000189505600012
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/5643]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Tang, DL,Kawamura, H,Guan, L. 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.(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.