“…Over the past century, climate change has been manifested in alteration of precipitation regimes worldwide (Giorgi & Lionello, 2008;Knapp et al, 2015). In the Mediterranean regions there is a clear trend of decreasing precipitation and runoff (Altin & Barak, 2014;Boithias et al, 2014;Brunetti et al, 2002;Ceballos et al, 2004;Garcia-Ruiz et al, 2011;Klein-Tank & Können, 2003;Lopez-Moreno et al, 2011;Martinez-Fernandez et al, 2013;Ventura et al, 2002;Vicente-Serrano & López-Moreno, 2006;Vicente-Serrano et al, 2011), triggering desertification with deleterious impacts on agricultural and water resources sustainability. Climate change projections point to further strengthening of the observed changes in global precipitation (Giorgi & Lionello, 2008), with increasing drought severity and water supply in the Mediterranean area (Cayan et al, 2008;Mariotti et al, 2008;Mastrandrea & Luers, 2012;May, 2008;Ozturk et al, 2015).…”