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学科主题: Ecology; Marine & Freshwater Biology; Oceanography
题名: Offshore phytoplankton biomass increase and its oceanographic causes in the South China Sea
作者: Tang, DL ; Kawamura, H ; Van Dien, T ; Lee, M
通讯作者: lingzistdl@yahoo.com
关键词: phytoplankton ; Chl a concentration ; upwelling ; monsoon ; satellite observation ; SeaWiFS ; South China Sea
刊名: MARINE ECOLOGY-PROGRESS SERIES
发表日期: 2004
卷: 268, 页:31-41
收录类别: sci
部门归属: Chinese Acad Sci, S China Sea Inst Oceanog, LED, Guangzhou 510301, Peoples R China; Fudan Univ, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China; Tohoku Univ, Grad Sch Sci, Ctr Atmospher & Ocean Studies, Sendai, Miyagi 9808578, Japan; Haiphong Isnt Oceanog, Haiphong, Vietnam; Natl Taiwan Ocean Univ, Dept Environm Biol & Fisheries Sci, Chilung 20224, Taiwan
项目归属: LED
摘要: High phytoplankton biomass often occurs in plumes near river mouths or in eutrophic coastal waters for short time periods. However, we observed an increased phytoplankton biomass in a narrow jet-shaped protrusion into the western South China Sea (SCS) using satellite chlorophyll a (chl a) data from the Sea-viewing Wide Field-of-view Sensor (SeaWiFS) and concurrent ship measurements in 1999. In June, regional phytoplankton biomass appeared as a large jet shape extending from the coastal waters of Vietnam eastward towards the SCS, about 200 km northeast of the mouth of the Mekong River; this feature intensified in the form of a large jet or gyre from July to September, decayed in October, and disappeared entirely in November. The gyre was about 400 km in diameter with chl a concentrations from 0.5 to 2 mg m(-3). Data on sea surface temperature (SST), winds, and sea surface height anomalies indicated a strong offshore upwelling during a period of strong southwesterly winds alongshore. The upwelling coincided with the regional increase in phytoplankton biomass in terms of shape, timing, and location. We observed this phenomenon during every southwesterly monsoon season from 1997 to 2002 using chl a images from 3 satellite ocean color sensors-SeaWiFS, Ocean Color and Temperature Scanner (OCTS), and Ocean Color Imager (OCI)-and it appeared to be related to the cross-shelf upwelling that delivers nutrients to surface waters. The phytoplankton then flowed with a large anticyclonic gyre into the western SCS.
原文出处: 查看原文
WOS记录号: WOS:000220739000003
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5647
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Tang, DL; Kawamura, H; Van Dien, T; Lee, M.Offshore phytoplankton biomass increase and its oceanographic causes in the South China Sea,MARINE ECOLOGY-PROGRESS SERIES,2004,268():31-41
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