DOI: 10.1002/2017JC013456
Scopus记录号: 2-s2.0-85048058879
论文题名: Partitioning of the Open Waters of the Gulf of Mexico Based on the Seasonal and Interannual Variability of Chlorophyll Concentration
作者: Damien P. ; Pasqueron de Fommervault O. ; Sheinbaum J. ; Jouanno J. ; Camacho-Ibar V.F. ; Duteil O.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期: 4 起始页码: 2592
结束页码: 2614
语种: 英语
英文关键词: chlorophyll cycle
; GoM partitioning
; Gulf of Mexico
; mixed layer depth
; numerical study
英文摘要: The seasonal and interannual variability of chlorophyll in the Gulf of Mexico open waters is studied using a three-dimensional coupled physical-biogeochemical model. A 5 years hindcast driven by realistic open-boundary conditions, atmospheric forcings, and freshwater discharges from rivers is performed. The use of recent in situ observations allowed an in-depth evaluation of the model nutrient and chlorophyll seasonal distributions, including the chlorophyll vertical structure. We find that different chlorophyll patterns of temporal variability coexist in the deep basin which thereby cannot be considered as a homogeneous region with respect to chlorophyll dynamics. A partitioning of the Gulf of Mexico open waters based on the winter chlorophyll concentration increase is then proposed. This partition is basically explained by the amount of nutrients injected into the euphotic layer which is highly constrained by the dynamic of the winter mixed layer. The seasonal and interannual variability appears to be affected by the variability of atmospheric fluxes and mesoscale dynamics (Loop Current eddies in particular). Finally, estimates of primary production in the deep basin are provided. © 2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114182
Appears in Collections: 气候减缓与适应
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作者单位: Departamento de Oceanografìa Fisica, Centro de Investigacion Cientìfica y de Educacion Superior de, Ensenada, Mexico; LEGOS, Université de Toulouse, IRD, CNRS, CNES, UPS, Toulouse, France; Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico; GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany
Recommended Citation:
Damien P.,Pasqueron de Fommervault O.,Sheinbaum J.,et al. Partitioning of the Open Waters of the Gulf of Mexico Based on the Seasonal and Interannual Variability of Chlorophyll Concentration[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(4)