气候变化领域集成服务门户(CCPortal): Weddell Sea Phytoplankton Blooms Modulated by Sea Ice Variability and Polynya Formation

CCPortal

DOI	10.1029/2020GL087954
	Weddell Sea Phytoplankton Blooms Modulated by Sea Ice Variability and Polynya Formation
	von Berg L.; Prend C.J.; Campbell E.C.; Mazloff M.R.; Talley L.D.; Gille S.T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	Seasonal sea ice retreat is known to stimulate Southern Ocean phytoplankton blooms, but depth-resolved observations of their evolution are scarce. Autonomous float measurements collected from 2015–2019 in the eastern Weddell Sea show that spring bloom initiation is closely linked to sea ice retreat timing. The appearance and persistence of a rare open-ocean polynya over the Maud Rise seamount in 2017 led to an early bloom and high annual net community production. Widespread early ice retreat north of Maud Rise in 2017, however, had a similar effect, suggesting that the polynya most impacted the timing of bloom initiation. Still, higher productivity rates at Maud Rise relative to the surrounding region are observed in all years, likely supported by flow-topography interactions. The longer growing season in 2017–2018 also allowed for separation of distinct spring and fall bloom signals, the latter of which was primarily subsurface and associated with mixed-layer deepening. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Phytoplankton; Topography; Autonomous floats; Mixed layer deepening; Net community productions; Phytoplankton bloom; Productivity rate; Sea ice retreats; Southern ocean; Surrounding regions; Sea ice; algal bloom; growing season; ice retreat; open ocean; persistence; phytoplankton; polynya; sea ice; seamount; topography; Southern Ocean; Weddell Sea
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/170285
作者单位	Department of Computer Science, Princeton University, Princeton, NJ, United States; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; School of Oceanography, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	von Berg L.,Prend C.J.,Campbell E.C.,et al. Weddell Sea Phytoplankton Blooms Modulated by Sea Ice Variability and Polynya Formation[J],2020,47(11).
APA	von Berg L.,Prend C.J.,Campbell E.C.,Mazloff M.R.,Talley L.D.,&Gille S.T..(2020).Weddell Sea Phytoplankton Blooms Modulated by Sea Ice Variability and Polynya Formation.Geophysical Research Letters,47(11).
MLA	von Berg L.,et al."Weddell Sea Phytoplankton Blooms Modulated by Sea Ice Variability and Polynya Formation".Geophysical Research Letters 47.11(2020).