气候变化领域集成服务门户(CCPortal): Phytoplankton “Missing” Absorption in Marine Waters: A Novel Pigment Compensation Model for the Packaging Effect

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DOI	10.1029/2020JC016458
	Phytoplankton “Missing” Absorption in Marine Waters: A Novel Pigment Compensation Model for the Packaging Effect
	Huan Y.; Sun D.; Wang S.; Bilal M.; Zhang H.; Qiu Z.; He Y.
发表日期	2021
ISSN	21699275
卷号	126 期号:1
英文摘要	The packaging effect (Qa) of phytoplankton pigments can account for over half of the variability in the phytoplankton absorption coefficient (aph) in oceanic waters. Given the significance of aph in many marine biogeochemical and environmental processes, exploring the packaging effect on absorption properties is a crucial task. In the present study, two pigment compensation models for quantifying the packaging effect are developed for Case I and Case II waters using high-performance liquid chromatography (HPLC) derived pigments and aph data. The Case I model is based on data from the NOMAD data set from the Atlantic Ocean, and the Case II model is based on data taken in the marginal seas of China. Phytoplankton “missing” absorption is derived by subtracting the reconstructed aph without the packaging effect from the measured aph. Our proposed models use the established relationships between “missing” absorption and specific absorption coefficients of pigment groups without the packaging effect to quantify pigment group concentrations. Validation using independent in situ data sets demonstrates that significant improvements are achieved to quantify the packaging effect, especially for waters under abnormal packaging effect conditions (Qa > 1), where the mean ratio of normal Qa* increasing largest from 40% to 90% in 455 nm in Case I water and from 70% to 100% in 520 nm in Case II water. Applying the proposed models to satellite data displays the spatial distributions of the packaging effect in the Atlantic Ocean and the marginal seas of China, as delegates of Case I and II waters, respectively. The Qa* intensity negatively covaries with the chlorophyll-a distribution. This study shows the spatial variability of the packaging effect from satellite observations for the first time. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Concentration compensation models; ocean color; phytoplankton absorption coefficients; pigment groups; satellite application; the packaging effect
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186523
作者单位	School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, China; Jiangsu Research Center for Ocean Survey Technology, NUIST, Nanjing, China
推荐引用方式 GB/T 7714	Huan Y.,Sun D.,Wang S.,等. Phytoplankton “Missing” Absorption in Marine Waters: A Novel Pigment Compensation Model for the Packaging Effect[J],2021,126(1).
APA	Huan Y..,Sun D..,Wang S..,Bilal M..,Zhang H..,...&He Y..(2021).Phytoplankton “Missing” Absorption in Marine Waters: A Novel Pigment Compensation Model for the Packaging Effect.Journal of Geophysical Research: Oceans,126(1).
MLA	Huan Y.,et al."Phytoplankton “Missing” Absorption in Marine Waters: A Novel Pigment Compensation Model for the Packaging Effect".Journal of Geophysical Research: Oceans 126.1(2021).