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Retrieving Phytoplankton Size Class from the Absorption Coefficient and Chlorophyll A Concentration Based on Support Vector Machine
Deng, Lin1; Zhou, Wen; Cao, Wenxi; Zheng, Wendi1; Wang, Guifen2; Xu, Zhantang; Li, Cai; Yang, Yuezhong; Hu, Shuibo3; Zhao, Wenjing4
2019
Source PublicationREMOTE SENSING
ISSN2072-4292
Volume11Issue:9Pages:1054
AbstractThe phytoplankton size class (PSC) plays an important role in biogeochemical processes in the ocean. In this study, a regional model of PSCs is proposed to retrieve vertical PSCs from the total minus water absorption coefficient (a(t-w)()) and Chlorophyll a concentration (Chla). The PSC model is developed by first reconstructing phytoplankton absorption and Chla from a(t-w)(), and then extracting PSC from them using the support vector machine (SVM). In situ bio-optical data collected in the South China Sea from 2006 to 2013 were used to train the SVM. The proposed PSC model was subsequently validated using an independent PSC dataset from the Northeast South China Sea Cruise in 2015. The results indicate that the PSC model performed better than the three components model, with a value of r(2) between 0.35 and 0.66, and the absolute percentage difference between 56% and 181%. On the whole, our PSC model shows a remarkable utility in terms of inferring vertical PSCs from the South China Sea.
DepartmentLTO
Keywordphytoplankton size class support vector machines AC-S ocean color remote sensing South China Sea
DOI10.3390/rs11091054
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17727
Collection热带海洋环境国家重点实验室(LTO)
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Hohai Univ, Coll Oceanog, Nanjing 210098, Jiangsu, Peoples R China
4.Shenzhen Univ, Coll Life Sci & Oceanog, Shenzhen 518060, Peoples R China
5.Minist Environm Protect RPC, South China Inst Environm Sci, Guangzhou 510535, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Deng, Lin,Zhou, Wen,Cao, Wenxi,et al. Retrieving Phytoplankton Size Class from the Absorption Coefficient and Chlorophyll A Concentration Based on Support Vector Machine[J]. REMOTE SENSING,2019,11(9):1054.
APA Deng, Lin.,Zhou, Wen.,Cao, Wenxi.,Zheng, Wendi.,Wang, Guifen.,...&Zhao, Wenjing.(2019).Retrieving Phytoplankton Size Class from the Absorption Coefficient and Chlorophyll A Concentration Based on Support Vector Machine.REMOTE SENSING,11(9),1054.
MLA Deng, Lin,et al."Retrieving Phytoplankton Size Class from the Absorption Coefficient and Chlorophyll A Concentration Based on Support Vector Machine".REMOTE SENSING 11.9(2019):1054.
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