Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra

doi:10.1007/s00343-019-8079-z

	Gaussian decomposition and component pigment spectral analysis of phytoplankton absorption spectra
	Ye Huping 1,2,3,4; Zhang Bing 3; Liao Xiaohan 2; Li Tongji 4; Shen Qian 3; Zhang Fangfang 3; Zhu Jianhua 4; Li Junsheng 3
刊名	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2019-09-01
卷号	37 期号:5 页码:1542-1554
关键词	phytoplankton absorption spectrum pigment concentration Gaussian decomposition
ISSN号	2096-5508
DOI	10.1007/s00343-019-8079-z
通讯作者	Zhu Jianhua(besmile@263.net) ; Li Junsheng(lijs@radi.ac.cn)
英文摘要	The 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.
资助项目	National 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]
WOS关键词	LIGHT-ABSORPTION ; NATURAL PHYTOPLANKTON ; REFLECTANCE ; COEFFICIENTS ; POPULATIONS ; RETRIEVAL
WOS研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000484533400007
资助机构	National 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
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/69733]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhu Jianhua; Li Junsheng
作者单位	1.Chinese Acad Sci, China Sri Lanka Joint Res & Demonstrat Ctr Water, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100094, Peoples R China 4.Natl Ocean Technol Ctr, Tianjin 300112, Peoples R China
推荐引用方式 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.