气候变化领域集成服务门户(CCPortal): Sinking Versus Suspended Particle Size Distributions in the North Pacific Subtropical Gyre

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DOI	10.1029/2020GL087825
	Sinking Versus Suspended Particle Size Distributions in the North Pacific Subtropical Gyre
	Cael B.B.; White A.E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	The particle size distribution (PSD) is a fundamental property that influences all aspects of phytoplankton ecology. In particular, the size (e.g., diameter d [μm]) and sinking speed w (m/day) of individual particles are inextricable, but much remains unknown about how d and w are related quantitatively for bulk particulate matter. There is significant interest in inferring sinking mass fluxes from PSDs, but doing so requires knowing how both mass and w scale with d. To this end, using both laser diffraction and imaging, we characterized for the first time both sinking and suspended PSDs in the oligotrophic North Pacific subtropical gyre. Comparing these PSDs via a power law parameterization indicates an approximately linear w-to-d scaling, suggesting particles are more fractal-like than sphere-like in this respect. This result is robust across multiple instruments, depths, and sediment trap deployments and is made comparatively precise by a high degree of replication. © 2020. The Authors.
英文关键词	Particle size analysis; Size distribution; Tropics; Fundamental properties; Individual particles; Laser diffractions; Multiple instruments; North Pacific; Particulate Matter; Power law parameterization; Subtropical Gyre; Particle size; instrumentation; parameterization; particle size; phytoplankton; power law; sediment trap; size distribution; suspended load; Pacific Ocean; Pacific Ocean (North)
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/169958
作者单位	National Oceanography Centre, Southampton, United Kingdom; Center for Microbial Research and Education, University of Hawai'i at Manoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Cael B.B.,White A.E.. Sinking Versus Suspended Particle Size Distributions in the North Pacific Subtropical Gyre[J],2020,47(15).
APA	Cael B.B.,&White A.E..(2020).Sinking Versus Suspended Particle Size Distributions in the North Pacific Subtropical Gyre.Geophysical Research Letters,47(15).
MLA	Cael B.B.,et al."Sinking Versus Suspended Particle Size Distributions in the North Pacific Subtropical Gyre".Geophysical Research Letters 47.15(2020).