caa a22 4500 605546525 CHVBK 20210128100941.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10236-015-0836-8 doi (NATIONALLICENCE)springer-10.1007/s10236-015-0836-8 Equatorial Atlantic Ocean dynamics in a coupled ocean-atmosphere model simulation [Elektronische Daten] [Emanuel Giarolla, Leo Siqueira, Marcus Bottino, Marta Malagutti, Vinicius Capistrano, Paulo Nobre] The ocean temperatures and zonal currents at the equatorial Atlantic simulated by an improved version of the Brazilian earth system model (BESM), with changes in the cloud cover scheme and optical properties of the atmospheric component, are analyzedand compared to those obtained from a previous version of BESM and also from other seven selected CMIP5 models. It is shown that this updated version of BESM, despite some persistent biases, more accurately represents the surface temperature variation at the Equator and the equatorial thermocline east-west slope. These improvements are associated to a more realistic seasonal cycle achieved for the Atlantic equatorial undercurrent, as well as sea surface temperatures and zonal wind stress. The better simulation of the equatorial undercurrent is, in its turn, credited to a more realistic representation of the surface wind position and strength at the tropical Atlantic by the coupled model. With many of the systematic errors noticed in the previous version of the model alleviated, this version of BESM can be considered as a useful tool for modelers involved in Atlantic variability studies. The Author(s), 2015 Coupled ocean-atmosphere models nationallicence Atlantic equatorial undercurrent nationallicence Atlantic equatorial thermocline nationallicence CMIP5 models nationallicence Giarolla Emanuel Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Avenida dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil aut Siqueira Leo Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut Bottino Marcus Center for Monitoring and Early Warnings of Natural Disasters - CEMADEN, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut Malagutti Marta Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut Capistrano Vinicius Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut Nobre Paulo Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut Ocean Dynamics Springer Berlin Heidelberg 65/6(2015-06-01), 831-843 1616-7341 65:6<831 2015 65 10236 https://doi.org/10.1007/s10236-015-0836-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10236-015-0836-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Giarolla Emanuel Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Avenida dos Astronautas 1758, 12227-010, São José dos Campos, SP, Brazil aut NATIONALLICENCE 700 1- Siqueira Leo Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut NATIONALLICENCE 700 1- Bottino Marcus Center for Monitoring and Early Warnings of Natural Disasters - CEMADEN, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut NATIONALLICENCE 700 1- Malagutti Marta Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut NATIONALLICENCE 700 1- Capistrano Vinicius Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut NATIONALLICENCE 700 1- Nobre Paulo Center for Weather Forecast and Climate Studies - CPTEC, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40 SP/RJ, 12630-970, Cachoeira Paulista, SP, Brazil aut NATIONALLICENCE 773 0- Ocean Dynamics Springer Berlin Heidelberg 65/6(2015-06-01), 831-843 1616-7341 65:6<831 2015 65 10236