DOI: 10.1002/2014GL059332
论文题名: Dynamic variability of biogeochemical ratios in the Southern California Current System
作者: Martz T. ; Send U. ; Ohman M.D. ; Takeshita Y. ; Bresnahan P. ; Kim H.-J. ; Nam S.
刊名: Geophysical Research Letters
ISSN: 0094-10165
EISSN: 1944-9896
出版年: 2014
卷: 41, 期: 7 起始页码: 2496
结束页码: 2501
语种: 英语
英文关键词: biogeochemistry
; sensors
Scopus关键词: Dissolved oxygen
; Sensors
; Biogeochemical
; Confidence interval
; Dissolved inorganic carbon
; Dynamic variability
; New production
; Nutrient availability
; Redfield ratio
; Southern California
; Biogeochemistry
; dissolved inorganic carbon
; nitrate
; nutrient availability
; oxygen
; Redfield ratio
; sensor
; timescale
; upwelling
; Pacific Ocean
; Southern California Bight
英文摘要: We use autonomous nitrate (NO3 -), oxygen (O 2), and dissolved inorganic carbon (DIC) observations to examine the relationship between ratios of C:N:O at an upwelling site in the Southern California Current System. Mean ratios and 95% confidence intervals observed by sensors over 8 months were NO3 -:O2-=0.11- ±-0.002, NO3 -:DIC-=-0.14-±-0.001, and DIC:O2-=0.83-±-0.01, in good agreement with Redfield ratios. Variability in the ratios on the weekly time scale is attributable to shifts in biological demand and nutrient availability and shown to exhibit a spectrum of values ranging from near 100% New Production to 100% Regenerated Production. Key Points Chemical sensors provide a means to observe the Redfield ratios Redfield ratios vary on the weekly timescale The f ratio ranges from 100% New to 100% Regenerated Production © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899041671&doi=10.1002%2f2014GL059332&partnerID=40&md5=58ae064d887dccfc266b99d54a8c3a9e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7429
Appears in Collections: 气候减缓与适应
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作者单位: Scripps Institution of Oceanography, University of California, San Diego, CA, United States
Recommended Citation:
Martz T.,Send U.,Ohman M.D.,et al. Dynamic variability of biogeochemical ratios in the Southern California Current System[J]. Geophysical Research Letters,2014-01-01,41(7).