气候变化领域集成服务门户(CCPortal): Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017

CCPortal

DOI	10.1029/2019JC015608
	Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017
	Boles E.; Provost C.; Garçon V.; Bertosio C.; Athanase M.; Koenig Z.; Sennéchael N.
发表日期	2020
ISSN	21699275
卷号	125 期号:3
英文摘要	In April 2017, the first Ice Atmosphere Arctic Ocean Observing System (IAOOS) platform equipped with biogeochemical sensors was deployed near the North Pole. Over the next 8 months it meandered southward with the ice, collecting measurements in the upper 250 m of Amundsen Basin, the Gakkel Ridge, Nansen Basin, and Fram Strait. Two distinct periods of primary production were encountered. The first bloom developed in the mixed layer in Amundsen Basin in May, reaching maximum chlorophyll a concentrations on the order of ~ 0.5 mg m−3 by the end of June. This bloom occurred earlier in the year than any other recorded bloom in Amundsen Basin, despite very limited under-ice light due to a thick layer of snow. The second bloom, encountered in Nansen Basin in August, was significantly larger (mean profile maximum chlorophyll a was 1.45 mg m−3). Examinations of the optical community index and colored dissolved organic matter concentrations suggest that the spring bloom consisted of small phytoplankton which may have been mixotrophic, while the summer bloom contained a greater diversity of planktonic size classes. The data set demonstrates the heterogeneity of Arctic under-ice primary production, and is a valuable resource for validating coupled Earth System models. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	biogeochemistry; Central Arctic Ocean; Eurasian Basin; phytoplankton bloom; primary production; under ice
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/186944
作者单位	Laboratoire LOCEAN-IPSL, Sorbonne Université (UPMC, University Paris 6), CNRS, IRD MNHN, Paris, France; Now at Environmental Fluid Mechanics Laboratory, Stanford University, Stanford, CA, United States; Laboratoire LEGOS (Etudes en Géophysique et Océanographie Spatiales), (UPS, CNRS, IRD, CNES), Toulouse, France; Now at Geophysical Institute, University of Bergen, Bergen, Norway
推荐引用方式 GB/T 7714	Boles E.,Provost C.,Garçon V.,et al. Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017[J],2020,125(3).
APA	Boles E..,Provost C..,Garçon V..,Bertosio C..,Athanase M..,...&Sennéchael N..(2020).Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017.Journal of Geophysical Research: Oceans,125(3).
MLA	Boles E.,et al."Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017".Journal of Geophysical Research: Oceans 125.3(2020).