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Variability in the Air–sea Interaction Patterns and Time-scales Within the Southeastern Bay of Biscay, as Observed by Hf Radar Data : Volume 9, Issue 4 (31/08/2012)

By Fontán, A.

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Book Id: WPLBN0003980617
Format Type: PDF Article :
File Size: Pages 23
Reproduction Date: 2015

Title: Variability in the Air–sea Interaction Patterns and Time-scales Within the Southeastern Bay of Biscay, as Observed by Hf Radar Data : Volume 9, Issue 4 (31/08/2012)  
Author: Fontán, A.
Volume: Vol. 9, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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González, M., Sáenz, J., Esnaola, G., & Fontán, A. (2012). Variability in the Air–sea Interaction Patterns and Time-scales Within the Southeastern Bay of Biscay, as Observed by Hf Radar Data : Volume 9, Issue 4 (31/08/2012). Retrieved from http://worldlibrary.net/


Description
Description: AZTI-Tecnalia, Marine Research Division. Herrera Kaia, Portualdea, z/g, 20110 Pasaia, Spain. Two high frequency (HF) radar stations were installed on the Southeastern Bay of Biscay in 2009, providing high spatial and temporal resolution and large spatial coverage currents for the first time in the area. This has enabled to determine quantitatively the air–sea interaction patterns and time-scales for the period 2009–2010. The analysis was conducted by using the Barnett-Preisendorfer approach to canonical correlation analysis (CCA) of reanalysis surface winds and HF radar-derived currents. The results reveal that the CCA yields two canonical patterns. The first wind-current interaction pattern corresponds to the classical Ekman drift at sea surface, whilst the second describes an anticyclonic/cyclonic surface circulation. The results obtained demonstrate that the local winds play an important role in driving the upper water circulation. The wind-current interaction time-scales are mainly related to diurnal breezes and synoptic variability. In particular, the breezes force diurnal currents in the continental shelf and slope of the Southeastern Bay. It is concluded that the breezes may force diurnal currents over considerably wider areas than that covered by the HF radar, considering that the northern and southern continental shelves of the Bay exhibit stronger diurnal than annual wind amplitudes.

Summary
Variability in the air–sea interaction patterns and time-scales within the Southeastern Bay of Biscay, as observed by HF radar data

Excerpt
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