“…ANN has been applied extensively in many parts of the world including Greece (Nastos et al, 2014), China (Wu et al, 2001), India (Chattopadhyay, 2007;Chattopadhyay and Chattopadhyay, 2008), Iran (Morid et al, 2007), Ethiopia (Belayneh and Adamowski, 2012), Kenya (Masinde, 2013), Turkey (Şenkal et al, 2012;Şenkal, 2010;Şenkal and Kuleli, 2009) In forecasting problems based on data-driven paradigms, synoptic-scale indices are often used as predictants for medium-range forecasting to explain the behavior of future climate (Dijk et al, 2013;McAlpine et al, 2009;Timbal and Fawcett, 2013;Ummenhofer et al, 2009); (Franks and Kuczera, 2002;Kiem and Franks, 2004;Kiem et al, 2003;VerdonKidd and Kiem, 2010). For the case of Australia, researcher have found that the Millennium drought was related to a combination of intensified sea level pressure across southern Australia (Hope et al, 2010), the subtropical ridge (belt of high-pressure systems representing the descending Hadley cell) and the ENSO cycle (Verdon-Kidd and ).…”