ABSTRACT
Geographic information systems (GISs) are used to support water resources hazards monitoring, forecasting, and warning in a variety of ways. Central to monitoring and warning is the need for data collection in real time when the event is happening and to anticipate future conditions through forecasting. These GISs are driven by advanced data-collection systems that measure the full range of hydrological and related system parameters, including water flow and weather. Telecommunications of data by various modes, in real time, provide up-to-date databases required for timely and accurate control and analyses. GIS-based interactive displays allow water resource systems managers to quickly examine the state of the system, invoke models to forecast possible future conditions, and disseminate warnings.
