globalchange  > 气候减缓与适应
DOI: 10.1029/2018JC013824
Scopus记录号: 2-s2.0-85050819402
论文题名:
Modeling the Offshore Export of Subantarctic Shelf Waters From the Patagonian Shelf
作者: Franco B.C.; Palma E.D.; Combes V.; Acha E.M.; Saraceno M.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期:7
起始页码: 4491
结束页码: 4502
语种: 英语
英文关键词: Brazil-Malvinas Confluence ; offshore detrainment ; Subantarctic Shelf Waters ; Subtropical Shelf Front ; SW Atlantic Ocean
英文摘要: It has been suggested that the Subtropical Shelf Front (STSF) could be a preferential site for the detrainment of Subantarctic Shelf Water (SASW) and related planktonic shelf species onto the open SW Atlantic Ocean. The offshore detrainment of SASW and planktonic shelf species might be an exportation mechanism, affecting the population abundances of fishing resources in Argentina, Uruguay, and Southern Brazil. In this study, we characterize for the first time the 3-D structure of the STSF and the main routes of offshore export of SASW from the Patagonian shelf during austral summer (summer and early fall) and winter (winter and early spring) by using numerical hydrodynamical model results and Lagrangian tracking simulations of neutrally buoyant floats. The transport of SASW toward the open ocean is ~1 Sv (1 Sv = 106 m3/s) during summer and ~0.8 Sv during winter. SASW are exported offshore mainly near the Brazil-Malvinas Confluence region during both seasons. The STSF appears to act as an important retention mechanism for the plankton over the inner and middle shelf mainly during late summer and early fall. Our findings could explain the life cycle of distinct fish species that are distributed in the region, as well as the population abundance variability of such species. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113561
Appears in Collections:气候减缓与适应

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作者单位: Centro de Investigaciones del Mar y la Atmósfera (CIMA)/CONICET-UBA, UMI-IFAECI/CNRS, Buenos Aires, Argentina; Departamento de Física, Universidad Nacional del Sur, Bahía Blanca, Argentina; Instituto Argentino de Oceanografía (IADO) (CONICET-UNS), Bahía Blanca, Argentina; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States; Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina; Instituto de Investigaciones Marinas y Costeras (IIMyC) (CONICET-UNMdP), Mar del Plata, Argentina; Departamento de Ciencias de la Atmósfera y los Océanos (DCAO), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina

Recommended Citation:
Franco B.C.,Palma E.D.,Combes V.,et al. Modeling the Offshore Export of Subantarctic Shelf Waters From the Patagonian Shelf[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(7)
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