气候变化领域集成服务门户(CCPortal): The Route to Spring Phytoplankton Blooms Simulated by a Lagrangian Plankton Model

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DOI	10.1029/2020JC016753
	The Route to Spring Phytoplankton Blooms Simulated by a Lagrangian Plankton Model
	Noh K.M.; Noh Y.; Brereton A.; Kug J.-S.
发表日期	2021
ISSN	21699275
卷号	126 期号:2
英文摘要	A Lagrangian plankton model (LPM) is developed, in which the motion of a large number of Lagrangian particles, representing a parcel of plankton, is calculated under the turbulence field simulated by large-eddy simulation. A spring phytoplankton bloom is realized using the LPM, and the mechanism for its 1 generation is investigated. The criterion based on these results is proposed as (Formula presented.), where δ E (= u ∗/f) is the scale for the Ekman boundary layer, δ S (= (Formula presented.)) is the scale for the depth of a seasonal thermocline, u ∗ is the wind stress, Q 0 is the surface buoyancy flux, f is the Coriolis parameter, and C 1 and C 2 are constants. The critical depth hypothesis can be applied for the onset of a spring bloom, when (Formula presented.), using the mixing layer depth instead of the mixed layer depth, as z c> C 2 δ S, but the critical turbulence hypothesis can be applied, as z c> C 1 δ E, when (Formula presented.). A spring bloom is more likely to occur at higher latitudes, even if the atmospheric forcing is the same. The diurnal variation of Q 0 tends to increase the strength of the spring bloom at small u ∗. Furthermore, various statistics of Lagrangian particles, such as the mixing length of plankton, the residence time of plankton within the euphotic zone, and the growth of plankton clarify the movement and growth of plankton cells. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Lagrangian plankton model; large eddy simulation; ocean mixed layer; spring phytoplankton bloom; turbulence
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/186449
作者单位	Division of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, South Korea; Department of Atmospheric Sciences, Yonsei University, Seoul, South Korea
推荐引用方式 GB/T 7714	Noh K.M.,Noh Y.,Brereton A.,et al. The Route to Spring Phytoplankton Blooms Simulated by a Lagrangian Plankton Model[J],2021,126(2).
APA	Noh K.M.,Noh Y.,Brereton A.,&Kug J.-S..(2021).The Route to Spring Phytoplankton Blooms Simulated by a Lagrangian Plankton Model.Journal of Geophysical Research: Oceans,126(2).
MLA	Noh K.M.,et al."The Route to Spring Phytoplankton Blooms Simulated by a Lagrangian Plankton Model".Journal of Geophysical Research: Oceans 126.2(2021).