气候变化领域集成服务门户(CCPortal): Detection of Coccolithophore Blooms With BioGeoChemical-Argo Floats

CCPortal

DOI	10.1029/2020GL090559
	Detection of Coccolithophore Blooms With BioGeoChemical-Argo Floats
	Terrats L.; Claustre H.; Cornec M.; Mangin A.; Neukermans G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:23
英文摘要	Coccolithophores (calcifying phytoplankton) form extensive blooms in temperate and subpolar oceans as evidenced from ocean-color satellites. This study examines the potential to detect coccolithophore blooms with BioGeoChemical-Argo (BGC-Argo) floats, autonomous ocean profilers equipped with bio-optical and physicochemical sensors. We first matched float data to ocean-color satellite data of calcite concentration to select floats that sampled coccolithophore blooms. We identified two floats in the Southern Ocean, which measured the particulate beam attenuation coefficient (cp) in addition to two core BGC-Argo variables, Chlorophyll-a concentration ([Chl-a]) and the particle backscattering coefficient (bbp). We show that coccolithophore blooms can be identified from floats by distinctively high values of (1) the bbp/cp ratio, a proxy for the refractive index of suspended particles, and (2) the bbp/[Chl-a] ratio, measurable by any BGC-Argo float. The latter thus paves the way to global investigations of environmental control of coccolithophore blooms and their role in carbon export. © 2020. The Authors.
英文关键词	Backscattering; Biogeochemistry; Calcite; Environmental management; Refractive index; Backscattering coefficients; Beam attenuation coefficient; Chlorophyll-a concentration; Coccolithophores; Environmental control; Ocean-color satellites; Southern ocean; Suspended particles; Oceanography; algal bloom; Argo; chlorophyll a; coccolith; concentration (composition); detection method; physicochemical property; refractive index; satellite data; suspended load; Southern Ocean; Emiliania huxleyi; Haptophyceae; Satellites
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169353
作者单位	Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, Villefranche-sur-Mer, France; ACRI-ST, Sophia Antipolis, France; Biology Department, MarSens Research Group, Ghent University, Ghent, Belgium; Flanders Marine Institute (VLIZ), InnovOcean site, Ostend, Belgium
推荐引用方式 GB/T 7714	Terrats L.,Claustre H.,Cornec M.,et al. Detection of Coccolithophore Blooms With BioGeoChemical-Argo Floats[J],2020,47(23).
APA	Terrats L.,Claustre H.,Cornec M.,Mangin A.,&Neukermans G..(2020).Detection of Coccolithophore Blooms With BioGeoChemical-Argo Floats.Geophysical Research Letters,47(23).
MLA	Terrats L.,et al."Detection of Coccolithophore Blooms With BioGeoChemical-Argo Floats".Geophysical Research Letters 47.23(2020).