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Original Articles

Frontal oscillations on the NE newfoundland shelf

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Pages 547-562 | Received 23 May 1990, Published online: 19 Nov 2010
 

Abstract

An examination of the temperature and current measurements from the NE Newfoundland Shelf indicates significant frontal variability at about a 7‐day period during the months of June‐September 1989. The oscillations recorded in 1989 appeared to have propagated into the region from the Labrador Shelf. Significant variability in the position of the shelf water/slope water front in the Bonavista area is also found between years and within the same year. Time series measurements also indicated that the transition from winter to summer conditions in the inshore region may be occurring during late July to early August.

Résumé

Un examen des mesures de la température et du courant de la plate‐forme NE de Terre‐Neuve montre une importante variabilité frontale périodique d'environ 7 jours durant les mois de juin à septembre 1989. Les oscillations enregistrées en 1989 semblent provenir de la plate‐forme du Labrador. On trouve aussi des variabilités importantes dans la position frontale des eaux de plate‐forme et de pente dans la région de Bonavista d'année en année et aussi à l'intérieur d'une même année. Des mesures de séries chronologiques indiquent aussi que la transition des conditions hivernales à estivales dans la région côtière intérieure peut se présenter de tard en juillet au début d'août.

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