“…Related published works are centred on a reduced number of locations such as Sheffield and Garston in Central and South England (Tregenza, 1999;Markou et al, 2004Markou et al, , 2005, Bratislava and Athens (Bartzokas et al, 2003a(Bartzokas et al, , 2003b, Hong Kong (Li et al, 2003), Bangkok (Chaiwiwatworakul and Chirarattananon, 2004), Singapore (Tregenza, 1999;Wittkopf and Soon, 2007) and Fukuoka (Tregenza, 1999). Furthermore, some of them are centred on a specific season: the summer period (Bartzokas et al, 2003a) or the winter period (Bartzokas et al, 2003b andMarkou et al, 2004). Torres et al (2010) studied the sky luminance distribution in Pamplona during the summer period.…”