Título

Effect of an axially-symmetric cyclonic vortex on the sea surface temperature in the Gulf of México

Autor

ELBA ELSA VILLANUEVA URRUTIA

VICTOR MANUEL MENDOZA CASTRO

JULIAN JORGE ADEM CHAHIN

Nivel de Acceso

Acceso Abierto

Referencia de publicación

URL/http://www.revistascca.unam.mx/atm/index.php/atm/article/view/8556

Resumen o descripción

A model for the mixed layer of the Gulf of México has been used to determine the effect that an idealized cyclonic vortex has in the sea surface temperature. The model consists of the equations of conservation of thermal energy and this of balance between mechanical energy and thermal energy, last based on the Kraus- Turner theory; both equations are vertically integrated in the mixed layer. As atmospheric forcing, we prescribe the surface wind associated with an axially-symmetric cyclonic vortex characterized by two parameters: the maximum tangential velocity and the radius at which that velocity is reached. The values of these two parameters, which depend on the position of the vortex, correspond to two cases: hurricane Hilda, which crossed the central part of the Gulf of México between September 29 and October 3, 1964 and hurricane Gilbert whose trajectory between 11 and 17 September, 1988 crossed the Caribbean Sea, the Yucatán Peninsula and the southwest Gulf of México. The results show that a cyclonic vortex with such characteristics, produce during its passage by the sea vertical turbulent water transport through the thermocline (entrainment) that is able to cool down the mixed layer in several degrees and increases the thermocline depth in several meters, in agreement with the observations.

Editor

Universidad Nacional Autónoma de México. Centro de Ciencias de la Atmósfera

Fecha de publicación

abril de 2006

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Formato

application/pdf

Fuente

Atmósfera; Vol 19, No 2 (2006)

ISSN: 0187-6236

Idioma

Inglés

Audiencia

Investigadores

Estudiantes

Repositorio Orígen

Repositorio Institucional del Centro de Ciencias de la Atmósfera de la UNAM

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