气候变化领域集成服务门户(CCPortal): Particulate Scattering and Backscattering in Relation to the Nature of Particles in the Red Sea

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DOI	10.1029/2020JC016610
	Particulate Scattering and Backscattering in Relation to the Nature of Particles in the Red Sea
	Kheireddine M.; Brewin R.J.W.; Ouhssain M.; Jones B.H.
发表日期	2021
ISSN	21699275
卷号	126 期号:4
英文摘要	Measurements of light scattering can be used to quantify the concentration and composition of oceanic particles, and resolve biogeochemical processes spanning different time and space scales. In this paper, we analyze the first dataset, collected over wide spatial scales in the Red Sea, of particulate scattering ((Formula presented.)), particulate backscattering ((Formula presented.)), particulate absorption and chlorophyll-a concentration [Chl_a]. We fit a three-component conceptual model relating (Formula presented.) to [Chl_a], assuming a fixed background component ((Formula presented.)), and two additional components driven by small (<2 (Formula presented.) m) and large phytoplankton (>2 (Formula presented.) m) ((Formula presented.) and (Formula presented.), respectively). We extend the approach, for the first time, to the modeling of total particulate scattering ((Formula presented.)), allowing us to retrieve the backscattering ratio for each component in the model. We observe a high backscattering ratio for the background component which, when analyzed alongside measurements of particulate absorption, suggests it is likely dominated by non-algal (rather than algal) particles. The high contribution of non-algal particles to (Formula presented.) at low [Chl_a] may be related to the unique conditions in the Red Sea, or more broadly, characteristic of other oceanic conditions. The work illustrates how we can combine optical measurements with conceptual models, to understand better the composition of oceanic particles and ultimately, improve monitoring of marine biogeochemical processes. Our work will also be useful for developing regional ocean-color models for the Red Sea. © 2021. The Authors.
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/186370
作者单位	Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division (BESE), Thuwal, Saudi Arabia; College of Life and Environmental Sciences, University of Exeter, Penryn Campus Cornwall, United Kingdom
推荐引用方式 GB/T 7714	Kheireddine M.,Brewin R.J.W.,Ouhssain M.,et al. Particulate Scattering and Backscattering in Relation to the Nature of Particles in the Red Sea[J],2021,126(4).
APA	Kheireddine M.,Brewin R.J.W.,Ouhssain M.,&Jones B.H..(2021).Particulate Scattering and Backscattering in Relation to the Nature of Particles in the Red Sea.Journal of Geophysical Research: Oceans,126(4).
MLA	Kheireddine M.,et al."Particulate Scattering and Backscattering in Relation to the Nature of Particles in the Red Sea".Journal of Geophysical Research: Oceans 126.4(2021).