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FLUSHING TIME IN THE CIENFUEGOS BAY,CUBA

Authors:	ALAIN MUÑOZ CARAVACA PASCAL DOUILLET OVEL DÍAZ GARCÍA RENAUD FICHEZ ROBERTO H HERRERA JAVIER ALCÁNTARA‐CARRIÓ AGUSTÍN GARCÍA RODRÍGUEZ

Institution:	1. Centro de Estudios Ambientales de Cienfuegos, Carretera Castillo de Jagua, Km 1?, AP. 5, CP. 59350 Cienfuegos, Cuba E‐mail: alain@ceac.cu;2. Aix‐Marseille Univ., Mediterranean Institute of Oceanography (MIO), 13288 Marseille cedex 09, France;3. Université du Sud Toulon‐Var, 83957 La Garde cedex, France;4. CNRS/INSU, MIO,UMR 7294, 13288 Marseille cedex 09;5. IRD, MIO, UR235, 13288 Marseille cedex, France Departamento de Hidrobiología, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco N° 186 Colonia Vicentina, México DF, Mexico UNAM‐CCA, Circuito Exterior, Ciudad Universitaria, 04510, Mexico DF, Mexico E‐mail:Pascal.Douillet@ird.fr ;6. Centro de Estudios Ambientales de Cienfuegos, Carretera Castillo de Jagua, Km 1?, AP. 5, CP. 59350 Cienfuegos, Cuba UNAM‐CCA, Circuito Exterior, Ciudad Universitaria, 04510, Mexico DF, Mexico E‐mail:ovel2006@gmail.com ;7. IRD, MIO, UR235, 13288 Marseille cedex, France Departamento de Hidrobiología, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco N° 186 Colonia Vicentina, México DF, Mexico E‐mail:representation.mexique@ird.fr ;8. Centro de Estudios Ambientales de Cienfuegos, Carretera Castillo de Jagua, Km 1?, AP. 5, CP. 59350 Cienfuegos, Cuba E‐mail:hentronix@yahoo.com ;9. Dpto. Ciencias Básicas y Experimentales. Universidad Católica de Valencia, C/ Guillem de Castro, 94, 46003 Valencia, Espa?a E‐mail:javier.alcantara@ucv.es ;10. Facultad Química y Farmacia, Dpto. Ingeniería Química, Universidad Central Marta Abreu de Las Villas, Carretera Camajuaní, Villa Clara, Cuba E‐mail:agarcia@uclv.edu.cu

Abstract:	We use a high‐resolution numerical model to analyze the hydrodynamical exchange processes of the Cienfuegos Bay with the Caribbean Sea. Results show that freshwater inputs and wind are the main factors controlling the water exchange in the bay. Nine simulation case studies with three wind conditions and three freshwater inputs were carried out. The main conclusion is that the Cienfuegos Bay system has a slow exchange rate, with an average flushing time of 39 days during the rainy period and 50 days during the dry one, for the most probable wind direction. Two new temporary scales for Cienfuegos Bay are discussed: the local e‐flushing time and the flushing lag. The results obtained for these new variables validate the slow exchange capacity of the bay.

Keywords:	Cienfuegos Bay flushing time residence time waters exchange

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