SciELO - Scientific Electronic Library Online

vol.29 issue4Impact of GNSS radio occultation profiles on the quality of the CPTEC/INPE weather forecastsInfluence of the configuration parameters of the CALMET model on the simulation of the atmospheric circulation in the metropolitan region of Rio de Janeiro author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Brasileira de Meteorologia

Print version ISSN 0102-7786


ALVES, José Maria Brabo et al. IPCC-AR4 coupled models and the meridional gradient of sea surface temperature in the Tropical Atlantic: relationship with the precipitation over the norther northeast of Brazil. Rev. bras. meteorol. [online]. 2014, vol.29, n.4, pp.568-578. ISSN 0102-7786.

This article shows how three coupled models of the Intergovernmental Panel on Climate Change-Fourth Assessment Report (IPCC-AR4), the FGOALS1.0G - LASG of the Institute of Atmospheric Physics of China, the GISSER of the National Aeronautics and Space Administration (NASA) and the GFDL_CM2 of the National Oceanic and Atmospheric Administration (NOAA) have simulated the meridional gradient variability of the Sea Surface Temperature (SST) in the tropical Atlantic during February to May months for the period from 1901 to 1999. The precipitation during the rainy season (February-May) in the northern sector of Northeast Brazil (NEB) was also analyzed by those three models and compared with observations. The GISSER and FGOALS1.0G models showed better performance at signal simulation of signal of the meridional SST gradient over the tropical Atlantic for the period 1901-1999. It is noteworthy that the coupled models have performed better in simulating the decadal trend, explaining 50% to 80% of gradient variability, being the southern sector SST better simulated.

Keywords : Tropical Atlantic Ocean; simulation-forecast; climate variability/change.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License