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Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra
Ye Huping1,2,3,4; Zhang Bing2; Liao Xiaohan1; Li Tongji3; Shen Qian2; Zhang Fangfang2; Zhu Jianhua3; Li Junsheng2
2019-09-01
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume37Issue:5Pages:1542-1554
Corresponding AuthorZhu Jianhua(besmile@263.net) ; Li Junsheng(lijs@radi.ac.cn)
AbstractThe absorption spectrum of phytoplankton is an important bio-optical parameter for ocean color hyperspectral remote sensing; its magnitude and shape can be affected considerably by pigment composition and concentration. We conducted Gaussian decomposition to the absorption spectra of phytoplankton pigment and studied the spectral components of the phytoplankton, in which the package effect was investigated using pigment concentration data and phytoplankton absorption spectra. The decomposition results were compared with the corresponding concentrations of the five main pigment groups (chlorophylls a, b, and c, photo-synthetic carotenoids (PSC), and photo-protective carotenoids (PPC)). The results indicate that the majority of residual errors in the Gaussian decomposition are <0.001 m(-1), and R-2 of the power regression between characteristic bands and HPLC pigment concentrations (except for chlorophyll b) was 0.65 or greater for surface water samples at autumn cruise. In addition, we determined a strong predictive capability for chlorophylls a, c, PPC, and PSC. We also tested the estimation of pigment concentrations from the empirical specific absorption coefficient of pigment composition. The empirical decomposition showed that the Ficek model was the closest to the original spectra with the smallest residual errors. The pigment decomposition results and HPLC measurements of pigment concentration are in a high consistency as the scatter plots are distributed largely near the 1:1 line in spite of prominent seasonal variations. The Wozniak model showed a better fit than the Ficek model for Chl a, and the median relative error was small. The pigment component information estimated from the phytoplankton absorption spectra can help better remote sensing of hyperspectral ocean color that related to the changes in phytoplankton communities and varieties.
Keywordphytoplankton absorption spectrum pigment concentration Gaussian decomposition
DOI10.1007/s00343-019-8079-z
WOS KeywordLIGHT-ABSORPTION ; NATURAL PHYTOPLANKTON ; REFLECTANCE ; COEFFICIENTS ; POPULATIONS ; RETRIEVAL
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[91638201] ; National Natural Science Foundation of China[41276184] ; National Natural Science Foundation of China[41771388 41471308] ; National Natural Science Foundation of China[41571361] ; National Natural Science Foundation of China[41701402] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA2003030201] ; National Key Research and Development Program of China[2017YFB0503005] ; National Key Research and Development Program of China[2016YFC1400903] ; National Key Research and Development Program of China[2016YFB0501502] ; High Resolution Earth Observation Systems of National Science and Technology Major Projects[41-Y20A31-9003-15/17] ; China-Sri Lanka Joint Research and Demonstration Center for Water Technology ; State Development and Reform Commission's Special Financial Projects[2017ST000602]
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Key Research and Development Program of China ; High Resolution Earth Observation Systems of National Science and Technology Major Projects ; China-Sri Lanka Joint Research and Demonstration Center for Water Technology ; State Development and Reform Commission's Special Financial Projects
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000484533400007
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69734
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhu Jianhua; Li Junsheng
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100094, Peoples R China
3.Natl Ocean Technol Ctr, Tianjin 300112, Peoples R China
4.Chinese Acad Sci, China Sri Lanka Joint Res & Demonstrat Ctr Water, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Ye Huping,Zhang Bing,Liao Xiaohan,et al. Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2019,37(5):1542-1554.
APA Ye Huping.,Zhang Bing.,Liao Xiaohan.,Li Tongji.,Shen Qian.,...&Li Junsheng.(2019).Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,37(5),1542-1554.
MLA Ye Huping,et al."Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 37.5(2019):1542-1554.
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