“…Wireless sensor networks are attracting an increasing interest due to their potentials for applicability in a variety of scenarios (Chong et al, 2003;Estrin et al, 2002). In particular, sensor networks appear as a powerful tool for monitoring physical and natural phenomena in hostile and remote environments such as remote glaciers (Martinez et al, 2004), active volcanoes (Werner-Allen et al, 2006;Xu et al, 2009) and active landslides (Sheth et al, 2007;Cho et al, 2008;Ohbayashi et al, 2008), as confirmed by the increasing number of real-world deployments of sensor network systems.…”