Mid-Holocene climate reconstruction for eastern South America
1Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil
2Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, Brazil
3IRD UMR 226 Institut des Sciences de l'Evolution, IRD CNRS UM2, Montpellier, France
4IRD UMR 7159 Laboratoire d'Océanographie et du Climat: Expérimentations et approches numériques, Bondy, France
Abstract. The Mid-Holocene (6 ka BP) is a key period to the study of climate, since it presented lower than present incoming summer insolation in the Southern Hemisphere, and the opposite in the Northern Hemisphere. This happened due to a different than present configuration of the orbital parameters. To investigate the effects of insolation on the Mid-Holocene climate, some global and regional multiproxy palaeodata compilations have been elaborated. However, few global studies have focused on the Southern Hemisphere, and none of the regional ones have characterized the Mid-Holocene climate in South America through a multiproxy approach. Here we present the first multiproxy compilation to the Mid-Holocene climate in eastern South America. We have compiled 120 palaeoclimatological data, published in 84 different papers. The palaeodata analyzed suggest a water deficit scenario in great part of eastern South America during Mid-Holocene, except for Northeastern Brazil. Nonetheless, further sampling is mandatory in South America and in the adjacent ocean basins.