气候变化领域集成服务门户(CCPortal): Arctic Observations Identify Phytoplankton Community Composition as Driver of Carbon Flux Attenuation

CCPortal

DOI	10.1029/2020GL087465
	Arctic Observations Identify Phytoplankton Community Composition as Driver of Carbon Flux Attenuation
	Wiedmann I.; Ceballos-Romero E.; Villa-Alfageme M.; Renner A.H.H.; Dybwad C.; van der Jagt H.; Svensen C.; Assmy P.; Wiktor J.M.; Tatarek A.; Różańska-Pluta M.; Iversen M.H.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:14
英文摘要	The attenuation coefficient b is one of the most common ways to describe how strong the carbon flux is attenuated throughout the water column. Therefore, b is an essential input variable in many carbon flux and climate models. Marsay et al. (2015, https://doi.org/10.1073/pnas.1415311112) proposed that the median surface water temperature (0–500 m) may be a predictor of b, but our observations from Arctic waters challenge this hypothesis. We found a highly variable attenuation coefficient (b = 0.43–1.84) in cold Arctic waters (<4.1 °C). Accordingly, we suggest that water temperature is not a globally valid predictor of the attenuation coefficient. We advocate instead that the phytoplankton composition and especially the relative abundance of diatoms can be used to parametrize the carbon flux attenuation in local and global carbon flux models. ©2020. The Authors.
英文关键词	Carbon; Climate models; Phytoplankton; Surface waters; Temperature; Arctic Waters; Attenuation coefficient; Input variables; Median surfaces; Phytoplankton community; Phytoplankton composition; Relative abundance; Water temperatures; Forestry; carbon flux; community composition; observational method; phytoplankton; relative abundance; seawater; surface water; Arctic Ocean; Bacillariophyta
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/170127
作者单位	UiT The Arctic University of Norway, Tromsø, Norway; Departamento de Física Aplicada II, Universidad de Sevilla, Spain; Institute of Marine Research, Fram Centre, Tromsø, Norway; Alfred-Wegener-Institute, Helmholtz Center for Polar and Marine Research, Bremerhaven, Germany; Bureau Waardenburg, Culemborg, Netherlands; Norwegian Polar Institute, Fram Centre, Tromsø, Norway; Institute of Oceanology, Polish Academy of Sciences (IOPAN), Sopot, Poland
推荐引用方式 GB/T 7714	Wiedmann I.,Ceballos-Romero E.,Villa-Alfageme M.,et al. Arctic Observations Identify Phytoplankton Community Composition as Driver of Carbon Flux Attenuation[J],2020,47(14).
APA	Wiedmann I..,Ceballos-Romero E..,Villa-Alfageme M..,Renner A.H.H..,Dybwad C..,...&Iversen M.H..(2020).Arctic Observations Identify Phytoplankton Community Composition as Driver of Carbon Flux Attenuation.Geophysical Research Letters,47(14).
MLA	Wiedmann I.,et al."Arctic Observations Identify Phytoplankton Community Composition as Driver of Carbon Flux Attenuation".Geophysical Research Letters 47.14(2020).