Temporal variability of chromophoric dissolved organic matter in the Pearl River Estuary, China from 2003 to 2009
Liu, FF; Tang, SL; Chen, CQ; cqchen@scsio.ac.cn
2014
发表期刊AQUATIC ECOSYSTEM HEALTH & MANAGEMENT
ISSN1463-4988
卷号17期号:3页码:261-270
摘要The present study aims to investigate the temporal variability of chromophoric dissolved organic matter through remote sensing and to determine its influence factors in the Pearl River Estuary. A medium resolution imaging spectrometer, chromophoric dissolved organic matter product was evaluated with in situ absorption coefficient (R-2 = 0.9605, RMS = 0.1672 and MRE = 0.3930). L2 daily products were then averaged into monthly data to analyze variability in the specified area from January 2003 to December 2009. Accumulated anomaly analysis and the wavelet analysis showed that the variability had a significant period of one year from 2003 to 2009, accompanied with 3 and 6 month periods in 2004 and 2008 separately. Cross wavelet transform was used to analyze the relationships between chromophoric dissolved organic matter and its influence factors including rainfall and phytoplankton in time frequency space. Relationships with salinity and light were also analyzed. It was found that photobleaching induces lower dissolved organic matter in summer even though there is greater discharge due to large rainfall intensity during this season. However, the anomalous strong precipitation may cause significantly higher findings in the study area. An example was a heavy flood caused by strong precipitation in 2008 induced higher findings for the period for less than half a year.
部门归属[Liu, Fenfen] Sun Yat Sen Univ, Sch Marine Sci, Guangzhou 510006, Guangdong, Peoples R China ; [Tang, Shilin ; Chen, Chuqun] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Oceanog Trop, Guangzhou 510301, Guangdong, Peoples R China
关键词Gelbstoff Spectral Analysis Photochemical Reactions
学科领域Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
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收录类别sci
资助项目LTO
WOS记录号WOS:000342280800008
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10528
专题热带海洋环境国家重点实验室(LTO)
通讯作者cqchen@scsio.ac.cn
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GB/T 7714
Liu, FF,Tang, SL,Chen, CQ,et al. Temporal variability of chromophoric dissolved organic matter in the Pearl River Estuary, China from 2003 to 2009[J]. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2014,17(3):261-270.
APA Liu, FF,Tang, SL,Chen, CQ,&cqchen@scsio.ac.cn.(2014).Temporal variability of chromophoric dissolved organic matter in the Pearl River Estuary, China from 2003 to 2009.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,17(3),261-270.
MLA Liu, FF,et al."Temporal variability of chromophoric dissolved organic matter in the Pearl River Estuary, China from 2003 to 2009".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 17.3(2014):261-270.
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