ABSTRACT
Due to the temporal and spatial characteristics of environmental data, GIS has been used to support environmental monitoring activities (Larsen, 1999; Gao, 2002). Mobile GIS, in particular, has been explored to support fieldwork, facilitating data collection and management (Tsou, 2004; Chapter 12, Tsou and Sun, in this book). In general, mobile computing applications together with mobile communications create new opportunities for environmental monitoring. For example, mobile GIS together with mobile communications can provide locationaware monitoring data and facilitate the collection of real-time data (Tsou, 2004).
