Accueil > Actualités > Séminaires > Séminaire de Amos Winter


Titre : Persistent drying in the tropics and the Atlantic Multidecadal Oscillation linked to natural forcing
Nom du conférencier : Amos Winter
Son affiliation : Indiana State University (USA) & University of Puerto Rico
Laboratoire organisateur : LOCEAN
Date et heure : 23-05-2017 11h00
Lieu : UPMC - 4 place Jussieu - 75005 Paris - LOCEAN - salle de réunion - tour 45/55, 4eme étage
Résumé :

Paleo-climate proxies are well suited for this purpose as they provide long time series that pre-date and complement the present, often short instrumental observations. Here we present paleo-precipitation data
from a speleothem located in Mesoamerica and the eastern Caribeean that reveal large multi-decadal declines in regional precipitation, whose onset coincides with clusters of large volcanic eruptions during the last 400 years. This reconstruction provides new independent evidence of long-lasting volcanic effects on climate and elucidates key aspects of the causal chain of physical processes determining the tropical climate response to global radiative forcing.

Contact :