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Aridity as measured by the aridity index is projected to increase over land under global warming. So far, the main focus has been on influences of the warming ocean and atmospheric processes in driving these changes. New results from global climate model simulations identify land-atmosphere interactions as additional important drivers for this tendency in climate change projections.

ECMWF has appointed Professor Heini Wernli from the Institute for Atmospheric and Climate Science, ETH Zurich to three-year Fellowship. Professor Heini Wernli has been selected because of the outstanding quality of his scientific work and his relevance to ECMWF’s strategic goal of improving forecast skill in the medium and extended range.