气候变化领域集成服务门户(CCPortal): Regional Characteristics of the Temporal Variability in the Global Particulate Inorganic Carbon Inventory

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DOI	10.1029/2019GB006300
	Regional Characteristics of the Temporal Variability in the Global Particulate Inorganic Carbon Inventory
	Hopkins J.; Henson S.A.; Poulton A.J.; Balch W.M.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	1328
结束页码	1338
卷号	33 期号:11
英文摘要	Coccolithophores are a biogeochemically important calcifying group of phytoplankton that exert significant influence on the global carbon cycle. They can modulate the air-sea flux of CO2 through the processes of photosynthesis and calcification and, as one of the primary contributors to the oceanic particulate inorganic carbon (PIC) pool, promote the export of organic carbon to depth. Here we present the first interannually resolved, global analysis of PIC standing stock. Average, global PIC standing stock in the top 100 m is estimated to be 27.04 ± 4.33 Tg PIC, with turnover times of ~7 days, which suggests PIC is likely removed by active processes such as grazing or rapid sinking, mediated through biogenic packaging (i.e., fecal pellets). We find that the Southern Hemisphere plays a significant role in the variability in PIC inventories and that interannual variability in PIC standing stock is driven primarily by variability in the midlatitude oceanic gyres and regions within the Great Calcite Belt of the Southern Ocean. Our results provide a framework against which future changes in global PIC standing stocks may be assessed. ©2019. American Geophysical Union. All Rights Reserved.
英文关键词	coccolithophores; Great Calcite Belt; integrated global inventory; particulate inorganic carbon; regional and seasonal variability of global PIC; remote sensing
语种	英语
scopus关键词	air-sea interaction; biogeochemistry; biomass; calcite; carbon cycle; carbon flux; coccolith; inorganic carbon; inventory; particulate inorganic matter; phytoplankton; temporal variation; Southern Ocean; Haptophyceae
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129702
作者单位	Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, United States; Ordnance Survey, Southampton, United Kingdom; Ocean Biogeochemistry and Ecosystems, National Oceanography Centre Southampton, European Way, Southampton, United Kingdom; Now at the Lyell Centre for Earth and Marine Sciences and Technology, Heriot-Watt University, Edinburgh, United Kingdom
推荐引用方式 GB/T 7714	Hopkins J.,Henson S.A.,Poulton A.J.,et al. Regional Characteristics of the Temporal Variability in the Global Particulate Inorganic Carbon Inventory[J],2019,33(11).
APA	Hopkins J.,Henson S.A.,Poulton A.J.,&Balch W.M..(2019).Regional Characteristics of the Temporal Variability in the Global Particulate Inorganic Carbon Inventory.Global Biogeochemical Cycles,33(11).
MLA	Hopkins J.,et al."Regional Characteristics of the Temporal Variability in the Global Particulate Inorganic Carbon Inventory".Global Biogeochemical Cycles 33.11(2019).