CMIP3 and CMIP5 representation of sea surface temperature in the Tropical Atlantic Ocean

José Maria Brabo Alves; Emerson Mariano Da Silva; Francisco Das Chagas Vasconcelos Júnior; Cleiton da Silva Silveira

doi:10.26848/rbgf.v17.1.p465-479

Autores/as

José Maria Brabo Alves Universidade Estadual do Ceará https://orcid.org/0000-0001-6541-9855
Emerson Mariano Da Silva Universidade Federal do Ceará (UECE)Departamento de Física https://orcid.org/0000-0002-9131-9820
Francisco Das Chagas Vasconcelos Júnior Fundação Cearense de Meteorologia e Recursos Hídricos https://orcid.org/0000-0002-1558-8383
Cleiton da Silva Silveira UFC https://orcid.org/0000-0003-3303-5157

DOI:

https://doi.org/10.26848/rbgf.v17.1.p465-479

Resumen

This study evaluates WCRP-CMIP3 and CMIP5 representation of the Sea Surface Temperature (SST) in the Atlantic Tropical Basin. The Atlantic Ocean presents thermal variability modes on intraseasonal, interannual and decadal time-scales that affect the climate of the North Atlantic, Caribbean, Western Africa, Northeast Brazil, the Gulf of Guinea Region and Southeast Atlantic (region of the Angolan resurgence). Two main SST modes in the Atlantic are the equatorial and meridional dipoles. These principal modes of SST interannual variabilities are investigated principally by empirical orthogonal function analysis (EOFs) to periods December-January and March-May. For the period of March-May, this study too analyses the relationships of these modes from coupled models of WCRP as rainfall in Northeastern Brazil compared to the observations (1971-2000 - ERSST). This investigation showed principally that although some models showed high value correlations (above 0.8 in absolute value) for both CMIP3 and CMIP5 with observations using their first two auto values EOFs coefficients of SST in the Tropical Atlantic basin, the simulations in most CMIP3-5 models do not represented the spatial thermal configuration in the basin compared to the observations, and also largely do not reproduce the pattern of correlation between to March-May between precipitation in northern of the NEB and the TSMs in the Tropical Atlantic.

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Biografía del autor/a

José Maria Brabo Alves, Universidade Estadual do Ceará

Dr. Engenharia Civil (Recursos Hídricos) - Professor Adjunto M do Departamento de Física - Universidade Estadual do Ceará (UECE) - Universidade Estadual do Ceará (UECE) - Fortaleza-CE-Brasil email: jose.brabo@uece.br

Emerson Mariano Da Silva, Universidade Federal do Ceará (UECE)Departamento de Física

Dr. Engenharia Civil (Recursos Hídricos) - Professor Associado II - Departamento de Física - Universidade Estadual do Ceará (UECE) - Fortaleza-CE-Brasil email: emerson@uece.br

Francisco Das Chagas Vasconcelos Júnior, Fundação Cearense de Meteorologia e Recursos Hídricos

Dr. Meteorologia - Pesquisador da Fundação Cearense de Meteorologia e Recursos Hídricos (FUNCEME) - Fortaleza - CE-Brasil email: juniorphy@gmail.com

Cleiton da Silva Silveira, UFC

Dr. Engenharia Civil (Recursos Hídricos) - Professor Adjunto Universidade Federal do Ceará (UFC) - Fortaleza - CE - Brasil email: cleitonsilveira@ufc.br

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