Sensitivity studies of the RegCM3 simulation of summer precipitation, temperature and local wind field in the Caribbean Region

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dc.contributor.authorMartínez Castro, Daniel
dc.contributor.authorPorfirio da Rocha, R.
dc.contributor.authorBezanilla-Morlot, A.
dc.contributor.authorAlvarez-Escudero, L.
dc.contributor.authorReyes-Fernández, J. P.
dc.contributor.authorSilva Vidal, Yamina
dc.contributor.authorArritt, R. W.
dc.date.accessioned2018-04-18T12:33:08Z
dc.date.available2018-04-18T12:33:08Z
dc.date.issued2006
dc.description.abstractWe present a preliminary evaluation of the performance of three different cumulus parameterization schemes in the ICTP Regional Climate Model RegCM3 for two overlapping domains (termed ‘‘big’’ and ‘‘small’’) and horizontal resolutions (50 and 25 km) in the Caribbean area during the summer (July–August–September). The cumulus parameterizations were the Grell scheme with two closure assumptions (Arakawa–Schubert and Fritsch–Chappell) and the Anthes-Kuo scheme. An additional sensitivity test was performed by comparing two different flux parameterization schemes over the ocean (Zeng and BATS). There is a systematic underestimation of air temperature and precipitation when compared with analyzed data over the big domain area. Greater ( 2 ºC) and smaller ( 0.9 ºC) negative temperature biases are obtained in Grell–FC and Kuo convective scheme, respectively, and intermediate values are obtained in Grell–AS. The small domain simulation produces results substantially different, both for air temperature and precipitation. Temperature estimations are better for the small domain, while the precipitation estimations are better for the big domain. An additional experiment showed that by using BATS to calculate the ocean fluxes in the big domain instead of the Zeng scheme, precipitation increases by 25% and the share of convective precipitation rose from 18% to 45% of the total, which implies a better simulation of precipitation. These changes were attributed to an increase of near surface latent heating when using BATS over the ocean. The use of BATS also reduces the cold bias by about 0.3–0.4 ºC, associated with an increase of minimum temperature. The behavior of the precipitation diurnal cycle and its relation with sea breeze was investigated in the small domain experiments. Results showed that the Grell–Arakawa–Schubert closure describes better this circulation as compared with Grell–Fritsch–Chappell closure.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationMartínez-Castro, D., Porfirio da Rocha, R., Bezanilla-Morlot, A., Alvarez-Escudero, L., Reyes-Fernández, J. P., Silva-Vidal, Y., & Arritt, R. W. (2006). Sensitivity studies of the RegCM3 simulation of summer precipitation, temperature and local wind field in the Caribbean Region.==$Theoretical and Applied Climatology, 86,$==5-22. https://doi.org/10.1007/s00704-005-0201-9es_ES
dc.identifier.doihttps://doi.org/10.1007/s00704-005-0201-9es_ES
dc.identifier.govdocindex-oti2018
dc.identifier.journalTheoretical and Applied Climatologyes_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/1044
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relation.ispartofurn:issn:0177-798X
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectRegional Climate Modeles_ES
dc.subjectSmall Domaines_ES
dc.subjectClimate Research Unites_ES
dc.subjectCold Biases_ES
dc.subjectCumulus Parameterization Schemees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.10es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.11es_ES
dc.titleSensitivity studies of the RegCM3 simulation of summer precipitation, temperature and local wind field in the Caribbean Regiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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