Filippo Giorgi

TL;DR: This article presented a review of climate change projections over the Mediterranean region based on the most recent and comprehensive ensembles of global and regional climate change simulations completed as part of international collaborative projects.

TL;DR: The Regional Climate Change Index (RCCI) as discussed by the authors is developed based on regional mean precipitation change, mean surface air temperature change, and change in precipitation and temperature interannual variability.

TL;DR: The need for climate change information at the regional-to-local scale is one of the central issues within the global change debate as mentioned in this paper, and such information is necessary in order to assess the impacts of climate change on human and natural systems and to develop suitable adaptation and mitigation strategies at the national level.

TL;DR: A new version of the RegCM regional climate modeling system, RegCM4, has been recently developed and made available for public use as discussed by the authors, which includes new land surface, planetary boundary layer, and air-sea flux schemes, a mixed convection and tropical band configuration, modifications to the pre-existing radiative transfer and boundary layer schemes, and a full upgrade of the model code towards improved flexibility, portability, and user friendliness.

TL;DR: In this article, the authors provide an introduction to the special issue of the Journal of Geophysical Research on “New Developments and Applications With the NCAR Regional Climate Model (RegCM).