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题名: Spatio-temporal distribution of chlorophyll-a concentration derived from MODIS satellite remote-sensing and in situ observations in Sanya Bay, China
作者: Shen, CY ; Shi, P ; Zhao, H ; Zhang, YY ; Dong, JD
通讯作者: chaohui@scsio.ac.cn
刊名: INTERNATIONAL JOURNAL OF REMOTE SENSING
发表日期: 2014
卷: 35, 期:41955, 页:4127-4137
收录类别: sci
部门归属: [Shen, Chunyan ; Shi, Ping ; Zhang, Yanying ; Dong, Junde] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanograghy, Guangzhou 510301, Guangdong, Peoples R China ; [Shen, Chunyan ; Zhao, Hui] Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China ; [Shen, Chunyan] Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
项目归属: LTO
资助者: National Natural Science Foundation of China [41376125, 41006070]; Educational Commission of Guangdong Province, China [2012KJCX0065]; Scientific Research Foundation for the Talents by Guangdong Ocean University
摘要: This study examined satellite chlorophyll-a (chl-a) concentration and in situ observations in Sanya Bay (SYB). In situ observation of chl-a was conducted four times per year at 12 sampling stations in SYB from January 2004 to October 2008. Monthly satellite chl-a was derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) during 2000-2012. This study compared satellite chl-a values to in situ measurements in SYB. The two data sets match well in the whole region except for two estuaries. Results show that the average in situ chl-a was 1.49 mg m(-3) in SYB. Chl-a was relatively higher (>2 mg m(-3)) and more variable in coastal areas, with a tendency to decrease offshore (<0.4 mg m(-3)). The chl-a level in summer displayed obviously vertical stratification, with higher values at the bottom and lower values at the surface. Analysis of monthly mean chl-a showed that the highest level (>2 mg m(-3)) appeared in December, with the lowest in March (< 1 mg m(-3)). The gradients are ranked winter, autumn, summer and spring. There was higher chl-a in autumn and winter, which may be associated with the stronger wind monsoon then. Annual mean chl-a from 2000 to 2012 varied from 1.17 to 2.05 mg m(-3), with the minimum in 2001 and the maximum in 2005. The chl-a level presented a roughly increasing tendency from 2000 to 2012, which may be related to the increasing nutrients associated with the development of tourism and fishery.
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WOS记录号: WOS:000337623200014
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10582
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Shen, CY; Shi, P; Zhao, H; Zhang, YY; Dong, JD.Spatio-temporal distribution of chlorophyll-a concentration derived from MODIS satellite remote-sensing and in situ observations in Sanya Bay, China,INTERNATIONAL JOURNAL OF REMOTE SENSING,2014,35(41955):4127-4137
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