globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50297
论文题名:
Controls of subsurface temperature variability in a western boundary upwelling system
作者: Belem A.L.; Castelao R.M.; Albuquerque A.L.
刊名: Geophysical Research Letters
ISSN: 0094-9177
EISSN: 1944-8908
出版年: 2013
卷: 40, 期:7
起始页码: 1362
结束页码: 1366
语种: 英语
英文关键词: Cabo Frio ; upwelling ; western boundary current
Scopus关键词: Cabo Frio ; Low-frequency variations ; Multiple linear regression analysis ; Regression coefficient ; Subsurface temperature ; Temperature variability ; upwelling ; Western boundary currents ; Earth sciences ; Geophysics ; Linear regression ; mooring system ; shelf break ; temperature gradient ; upwelling ; western boundary current ; wind stress ; Brazil ; Cabo Frio ; Rio de Janeiro [Brazil]
英文摘要: The mechanisms controlling subsurface temperature variability on the outer shelf in a western boundary upwelling system are quantified using observations from a mooring deployed off Cabo Frio, Brazil. Results from a multiple linear regression analysis reveal that, in addition to low-frequency variations associated with the seasonal evolution of temperature, the dominant mechanisms controlling temperature variability are wind stress curl-driven upwelling, cross-isobath transport, the proximity of the Brazil Current to the shelf break, and perhaps changes in the strength of tidal mixing associated with the spring-neap cycle. The influence of the proximity of the Brazil Current decreases strongly with depth, being restricted to the top 80 m. Regression coefficients indicate that the relative contributions from the different forcings are roughly similar and that no single process has a dominant role explaining temperature variability near the shelf break. These suggest that successful modeling efforts in the region must adequately represent each of those processes. Key Points Temperature variations are correlated to multiple forcing inshore of WBC No single process has a dominant role explaining temperature variability Influence of the position of WBC is limited to surface layer ©2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876924037&doi=10.1002%2fgrl.50297&partnerID=40&md5=6b31ad0c0bc68fcfcf736a67b920892a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6441
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作者单位: Departamento de Geoquimica, Universidade Federal Fluminense Rio de Janeiro, Niteroi, Brazil

Recommended Citation:
Belem A.L.,Castelao R.M.,Albuquerque A.L.. Controls of subsurface temperature variability in a western boundary upwelling system[J]. Geophysical Research Letters,2013-01-01,40(7).
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