NDLI: Probabilistic relationships between wind and surface water circulation patterns in the SE Bay of Biscay

Content Provider	Springer Nature Link
Author	Solabarrieta, Lohitzune Rubio, Anna Cárdenas, Mar Castanedo, Sonia Esnaola, Ganix Méndez, Fernando J. Medina, Raúl Ferrer, Luis
Copyright Year	2015
Abstract	Non-linear K-means classification algorithm was used to obtain a comprehensive description of the winds and high-frequency radar-derived currents in the SE Bay of Biscay (study area), taking into account a wide range of scales, from several days to interannual variability. The results in the study area show that in summer, a stronger variability in winds and surface currents can be expected, while in winter, intense southwesterly winds and a cyclonic circulation prevail. In addition to the seasonal component of the currents, a significant spatial variability in terms of current patterns and a temporal variability at shorter and interannual scales were also identified, highlighting the complexity of the surface current dynamics. Moreover, the probabilistic relationships between wind and current patterns were explored, obtaining conditional probabilities. Most of the surface current patterns are clearly related to specific wind patterns that are recurrent in the study area. However, other common current patterns are not so clearly related to specific wind conditions. The presence of a seasonal slope current (Iberian Poleward Current, IPC) is one of the most relevant features of the local circulation. An IPC occurrence time series based on Sea Surface Temperature satellite imagery was used to obtain conditional probabilities with the high-frequency radar surface current patterns, showing a relation between the strongest IPC events and closed cyclonic currents, which are not linked to specific winds.
Starting Page	1289
Ending Page	1303
Page Count	15
File Format	PDF
ISSN	16167341
Journal	Deutsche Hydrografische Zeitschrift
Volume Number	65
Issue Number	9-10
e-ISSN	16167228
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-09-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Clustering technique High-frequency radar Ocean surface currents Wind-induced circulation Shelf slope circulation Iberian Poleward Current Oceanography Geophysics/Geodesy Atmospheric Sciences Fluid- and Aerodynamics Environmental Monitoring/Analysis
Content Type	Text
Resource Type	Article
Subject	Oceanography

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