DOI: 10.1002/2014GL059608
论文题名: Oceanic mesoscale turbulence drives large biogeochemical interannual variability at middle and high latitudes
作者: Lévy M. ; Resplandy L. ; Lengaigne M.
刊名: Geophysical Research Letters
ISSN: 0094-10216
EISSN: 1944-9947
出版年: 2014
卷: 41, 期: 7 起始页码: 2467
结束页码: 2474
语种: 英语
英文关键词: Bloom
; chaotic
; fluxes
; interannual
; phenology
; submesoscale
Scopus关键词: Atmospheric thermodynamics
; Biogeochemistry
; Fluxes
; Phytoplankton
; Turbulence
; Bloom
; chaotic
; Interannual
; phenology
; submesoscale
; Climate change
; algal bloom
; annual variation
; atmospheric forcing
; biogeochemistry
; chaotic dynamics
; latitudinal gradient
; mesoscale motion
; phenology
; phytoplankton
; seasonality
; turbulence
英文摘要: Observed phytoplankton interannual variability has been commonly related to atmospheric variables and climate indices. Here we showed that such relation is highly hampered by internal variability associated with oceanic mesoscale turbulence at middle and high latitudes. We used a 1/54° idealized biogeochemical model with a seasonally repeating atmospheric forcing such that there was no external source of interannual variability. At the scale of moorings, our experiment suggested that internal variability was responsible for interannual fluctuations of the subpolar phytoplankton bloom reaching 80% in amplitude and 2 weeks in timing. Over broader scales, the largest impact occurred in the subtropics with interannual variations of 20% in new production the full strength of this variability could not be captured with the same model run at coarser resolution, suggesting that submesoscale resolving models are needed to fully disentangle the major drivers of biogeochemical variability at interannual time scales. Key Points Submesoscales generate interannual variations in phytoplankton blooms The variability occurs at local scale and translates to larger scale High horizontal resolution is needed to fully capture it © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897359917&doi=10.1002%2f2014GL059608&partnerID=40&md5=0dc2350d0ca339b1b3f3e3917e801f3e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7480
Appears in Collections: 气候减缓与适应
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作者单位: Sorbonne Universités, UPMC Univ. Paris 06, CNRS, Paris, France
Recommended Citation:
Lévy M.,Resplandy L.,Lengaigne M.. Oceanic mesoscale turbulence drives large biogeochemical interannual variability at middle and high latitudes[J]. Geophysical Research Letters,2014-01-01,41(7).