CIMA 09099
CENTRO DE INVESTIGACIONES DEL MAR Y LA ATMOSFERA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Dry spells: RCMs performance to simulate present climate and projections for future climate in South America
Autor/es:
PABLO G. ZANINELLI; ANDREA F. CARRIL; CLAUDIO G. MENENDEZ; ENRIQUE SÁNCHEZ
Lugar:
Lund
Reunión:
Workshop; 3rd International Lund Regional-Scale Climate Modelling Workshop. 21st Century Challenges in Regional Climate Modelling; 2014
Resumen:
Based on a variable-threshold approach we have documented the ability of an ensemble of RCMs to
simulate present-day dry spells. The ensemble mean reproduce appropriately the main spatial pattern of the dry spells length. Deficiencies are mainly associated with an overestimation of the
mean length of dry spells caused by an overestimation ofthe persistence of dry days.
For future climate, the major increases in the mean length of dry spells are projected over northeast of South America, Chile and north of Argentina, meanwhile some decreases are expected over the western Amazon basin. In other regions like SESA the uncertainty makes it difficult to identify a signal of change
