Comparison of paleoclimatics simulation in the South Atlantic region

Author(s)

Adriana Oliveira ^[1] ; Gagriel Clauzet ^[2] ; Ilana Wainer ^[3]

Affiliation

^[1] Universidade de São Paulo. Instituto Oceanográfico. Departamento de Oceanografia Física - Brasil

^[2] Universidade de São Paulo. Instituto Oceanográfico. Departamento de Oceanografia Física - Brasil

^[3] Universidade de São Paulo. Instituto Oceanográfico. Departamento de Oceanografia Física - Brasil

• Document type: Journal article
• Source: Revista Brasileira de Meteorologia; v. 22, n. 1, p. 21-37, 2007-04-00.

Abstract

The present work presents a comparison between the results of different paleoclimate simulations models for two periods, the Last Glacial Maximum (LGM) and the Present day. This comparison intents to elucidate the overall differences of the physical and dynamical processes from ocean-atmosphere system for these two climates. We analyzed the variations in the annual climatology between the LGM and Present for the following variables: air temperature, precipitation and sea level pressure. We used the results of the PMIP (Paleoclimate Modelling Intercomparison Project) and the numerical coupled model developed at NCAR (National Center for Atmospheric Research) CCSM (Comunnity Climate System Model) for the two periods of interest. The results show an intensification of the present in relation to the LGM in all variables. The different atmospheric simulations of the PMIP showed similar patterns of those of the NCAR CCSM, where we observed low values of RMS in most of the region. (AU)

• FAPESP's process: 03/09971-7 - Intercomparison of paleoclimatic simulations for the Middle Holocene and the present in the region of the South Atlantic
• Grantee: Adriana Brasil de Oliveira
• Support Opportunities: Scholarships in Brazil - Master