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A bio-optical inversion model to retrieve absorption contributions and phytoplankton size structure from total minus water spectral absorption using genetic algorithm
[Lin Junfang; Cao Wenxi; Zhou Wen; Hu Shuibo; Wang Guifen; Sun Zhaohua; Xu Zhantang] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China; Hu Shuibo] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Song Qingjun] State Ocean Adm, Natl Satellite Ocean Applicat Serv NSOAS, Beijing 100049, Peoples R China; wxcao@scsio.ac.cn
2013
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
Volume31Issue:5Pages:970-978
AbstractWe propose a bio-optical inversion model that retrieves the absorption contributions of phytoplankton and colored detrital matter (CDM), as well as the phytoplankton size classes (PSCs), from total minus water absorption spectra. The model is based on three-component separation of phytoplankton size structure and a genetic algorithm. The model performance was tested on two independent datasets (the NASA bio-Optical Marine Algorithm Dataset (NOMAD) and the northern South China Sea (NSCS) dataset). The relationships between the estimated and measured values were strongly linear, especially for a (CDM) (412), and the Root Mean Square Error (RMSE) of the CDM exponential slope (S (CDM)) was relatively low. Next, the inversion model was directly applied to in-situ total minus water absorption spectra determined by an underwater meter during a cruise in September 2008, to retrieve the phytoplankton size structure in the seawater. By comparing the measured and retrieved chlorophyll a concentrations, we demonstrated that total and size-specific chlorophyll a concentrations could be retrieved by the model with relatively high accuracy. Finally, we applied the bio-optical inversion model to investigate changes in phytoplankton size structure induced by an anti-cyclonic eddy in the NSCS.
DepartmentLTO
KeywordInversion Phytoplankton Size Classes Absorption Coefficients Genetic Algorithm
Subject AreaLimnology ; Oceanography
Funding OrganizationThe support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises. ; The support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises. ; The support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises. ; The support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises.
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Language英语
Funding OrganizationThe support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises. ; The support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises. ; The support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises. ; The support of SeaBASS and all contributors to the NOMAD dataset for in-situ data are gratefully acknowledged. We also express our appreciation to the many colleagues in our group, who supported the open cruises.
WOS IDWOS:000324111300004
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10886
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorwxcao@scsio.ac.cn
Recommended Citation
GB/T 7714
[Lin Junfang,Cao Wenxi,Zhou Wen,et al. A bio-optical inversion model to retrieve absorption contributions and phytoplankton size structure from total minus water spectral absorption using genetic algorithm[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(5):970-978.
APA [Lin Junfang.,Cao Wenxi.,Zhou Wen.,Hu Shuibo.,Wang Guifen.,...&wxcao@scsio.ac.cn.(2013).A bio-optical inversion model to retrieve absorption contributions and phytoplankton size structure from total minus water spectral absorption using genetic algorithm.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(5),970-978.
MLA [Lin Junfang,et al."A bio-optical inversion model to retrieve absorption contributions and phytoplankton size structure from total minus water spectral absorption using genetic algorithm".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.5(2013):970-978.
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