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Geofysisk institutt

GFI/BCCR Seminar: Bias, variability and seasonal forecast in the Tropical Atlantic

Chloé Prodhomme (Earth Department - Barcelona Supercomting Center)

Bias, variability and seasonal forecast in the Tropical Atlantic

Abstract

The Tropical Atlantic is a key region for its local and remote impacts. First, the local fisheries are strongly affected by the oceanic variability. Second, the Tropical Atlantic Sea Surface Temperature (SST) has been shown to influence strongly the rest of the tropics but also the European climate. However, this region suffers of large SST bias (up to 6º), widespread among most of the coupled models. The objective of the present seminar is to explore the processes responsible of the formation of those biases and their impacts on the representation of the variability both in long term simulations and seasonal forecasts.