Colin Christian, Bourlès Bernard. (1993). Western boundary currents and transports off French Guiana as inferred from Pegasus observations. Oceanologica Acta, 17 (2), p. 143-157. ISSN 0399-1784.
Titre du document
Western boundary currents and transports off French Guiana as inferred from Pegasus observations
Année de publication
1993
Type de document
Article
Auteurs
Colin Christian, Bourlès Bernard
Source
Oceanologica Acta, 1993,
17 (2), p. 143-157 ISSN 0399-1784
Pegasus current measurements carried out along a section located off French Guiana are presented; the section was repeated five times from september 1989 to june 1991 during the NOE (région Nord-Ouest équatoriale)/STACS (Sub-Tropical Atlantic Climate Studies) cruises on board the NOAA (National Oceanic and Atmospheric Administration) research vessels. The data (vertical and horizontal distributions) show, as suggested by earliest observations, the presence of different currents. At the surface, and in winter, the North Brazil Current (NBC) flows northwestward (positive), is strong (120 cm/s), confined in the first 250 m, constally trapped (within 250 km) and fed by offshore waters; in summer the NBC strengthens (the velocity increases to 150 cm/s), vertically extends (down to 800 m) and veers offshore. (D'après résumé d'auteur)
Plan de classement
Dynamique des eaux [032DYNEAU]
Descripteurs
COURANT EQUATORIAL ; TEMPERATURE ; SALINITE ; VARIATION INTERANNUELLE
