DOI: 10.1002/2014GL062769
论文题名: Decreased calcification in the Southern Ocean over the satellite record
作者: Freeman N.M. ; Lovenduski N.S.
刊名: Geophysical Research Letters
ISSN: 0094-8878
EISSN: 1944-8609
出版年: 2015
卷: 42, 期: 6 起始页码: 1834
结束页码: 1840
语种: 英语
英文关键词: Antarctic polar front
; calcification
; carbonate ion
; particulate inorganic carbon
; Southern Ocean
Scopus关键词: Atmospheric temperature
; Biomineralization
; Bone
; Calcification (biochemistry)
; Carbon
; Carbon dioxide
; Ecosystems
; Surface waters
; Antarctic polar fronts
; Anthropogenic carbon dioxide
; Carbonate ions
; Changing environment
; Inorganic carbon
; Ocean acidifications
; Sea surface temperature (SST)
; Southern ocean
; Oceanography
; calcification
; carbon cycle
; carbonate
; concentration (composition)
; estimation method
; heterogeneity
; satellite imagery
; sea surface temperature
; seasonal variation
; Southern Ocean
英文摘要: Widespread ocean acidification is occurring as the ocean absorbs anthropogenic carbon dioxide from the atmosphere, threatening marine ecosystems, particularly the calcifying plankton that provide the base of the marine food chain and play a key role within the global carbon cycle. We use satellite estimates of particulate inorganic carbon (PIC), surface chlorophyll, and sea surface temperature to provide a first estimate of changing calcification rates throughout the Southern Ocean. From 1998 to 2014 we observe a 4% basin-wide reduction in summer calcification, with ∼9% reductions in large regions (∼1 × 106 km2) of the Pacific and Indian sectors. Southern Ocean trends are spatially heterogeneous and primarily driven by changes in PIC concentration (suspended calcite), which has declined by ∼24% in these regions. The observed decline in Southern Ocean calcification and PIC is suggestive of large-scale changes in the carbon cycle and provides insight into organism vulnerability in a changing environment. Key Points Southern Ocean mean calcification rate has declined but trends are heterogeneous Trends in particulate inorganic carbon drive calcification trends Decreases in carbonate ion are concurrent with decreases in calcification ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927800234&doi=10.1002%2f2014GL062769&partnerID=40&md5=07ad21105d40007b71785e64929faf8d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8494
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Atmospheric and Oceanic Sciences, Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Freeman N.M.,Lovenduski N.S.. Decreased calcification in the Southern Ocean over the satellite record[J]. Geophysical Research Letters,2015-01-01,42(6).