首页   按字顺浏览 期刊浏览 卷期浏览 Circulation in the Point Conception‐Santa Barbara Channel region
Circulation in the Point Conception‐Santa Barbara Channel region

 

作者: K. H. Brink,   R. D. Muench,  

 

期刊: Journal of Geophysical Research: Oceans  (WILEY Available online 1986)
卷期: Volume 91, issue C1  

页码: 877-895

 

ISSN:0148-0227

 

年代: 1986

 

DOI:10.1029/JC091iC01p00877

 

数据来源: WILEY

 

摘要:

During spring and early summer 1983, fifteen current moorings were deployed around the periphery of Santa Barbara Channel and over the continental shelf to the west, off Point Conception. Data from these moorings have been used to describe the regional circulation and to address problems of wind forcing and the spatial coherency scales for current fluctuations. The mean circulation in Santa Barbara Channel was dominated by a westward jet which occupied the northwestern portion of the Channel. Current and temperature fluctuations were generally well‐correlated among all locations around the Channel, and time lags suggested cyclonic propagation of events around the Channel. The time fluctuations were dominated by a relatively few low‐frequency events. It was impossible to determine exactly either the driving mechanisms for these events or their relationships to regional flow. The flow regime was considerably different off Point Conception than in the Channel. Locally wind‐driven upwelling was observed in both the mean and fluctuating flows, and the time scales of current variability (i.e., spectral shapes) mimicked those of the local winds. A dramatic change in the regime off Point Conception occurred in late May. Before the transition, currents and sea levels had been well correlated in time with both local and remote winds. After late May the relation to fluctuating winds was less clear and the alongshore structure of sea level variability had changed radi

 

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