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dc.creatorMaldonado Mora, Tito José
dc.creatorRutgersson, Anna
dc.creatorCaballero, Rodrigo
dc.creatorPausata, Francesco Salvatore Rocco
dc.creatorAlfaro Martínez, Eric J.
dc.creatorAmador Astúa, Jorge Alberto
dc.date.accessioned2018-11-28T21:38:49Z
dc.date.available2018-11-28T21:38:49Z
dc.date.issued2017
dc.identifier.citationhttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JD026025es_ES
dc.identifier.issn0148-0227
dc.identifier.urihttp://hdl.handle.net/10669/76193
dc.description.abstractThe Caribbean low‐level jet (CLLJ) is an important modulator of regional climate, especially precipitation, in the Caribbean and Central America. Previous work has inferred, due to their semiannual cycle, an association between CLLJ strength and meridional sea surface temperature (SST) gradients in the Caribbean Sea, suggesting that the SST gradients may control the intensity and vertical shear of the CLLJ. In addition, both the horizontal and vertical structure of the jet have been related to topographic effects via interaction with the mountains in Northern South America (NSA), including funneling effects and changes in the meridional geopotential gradient. Here we test these hypotheses, using an atmospheric general circulation model to perform a set of sensitivity experiments to examine the impact of both SST gradients and topography on the CLLJ. In one sensitivity experiment, we remove the meridional SST gradient over the Caribbean Sea and in the other, we flatten the mountains over NSA. Our results show that the SST gradient and topography have little or no impact on the jet intensity, vertical, and horizontal wind shears, contrary to previous works. However, our findings do not discount a possible one‐way coupling between the SST and the wind over the Caribbean Sea through friction force. We also examined an alternative approach based on barotropic instability to understand the CLLJ intensity, vertical, and horizontal wind shears. Our results show that the current hypothesis about the CLLJ must be reviewed in order to fully understand the atmospheric dynamics governing the Caribbean region.es_ES
dc.description.sponsorshipConsejo Superior Universitario Centroamericano/[805-A9-532]/CSUCA/Guatemalaes_ES
dc.description.sponsorshipAgencia Sueca de Desarrollo Internacional/[805-A9-532]/ASDI/Sueciaes_ES
dc.description.sponsorshipUniversidad de Costa Rica/[805-B6-143]/UCR/Costa Ricaes_ES
dc.description.sponsorshipConsejo Nacional para Investigaciones Científicas y Tecnológicas/[805-B6-143]/CONICIT/Costa Ricaes_ES
dc.description.sponsorshipMinisterio de Ciencia, Tecnología y Telecomunicaciones/[805-B6-143]/MICITT/Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.relation.ispartof
dc.sourceJournal of Geophysical Research: Atmospheres, Vol. 122(11), pp.5903-5916es_ES
dc.subjectSST gradientes_ES
dc.subjectCaribbean Seaes_ES
dc.subjectCaribbean low‐level jetes_ES
dc.subjectCentral Americaes_ES
dc.subject551.672 8 Climatología y estado atmosféricoes_ES
dc.titleThe role of the meridional sea surface temperature gradient in controlling the Caribbean low-level jetes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.date.updated2018-10-02T20:19:16Z
dc.identifier.doi10.1002/2016JD026025
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI)es_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencias del Mar y Limnología (CIMAR)es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Físicaes_ES
dc.identifier.codproyecto805-A9-532
dc.identifier.codproyecto805-B6-143


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