WEAP was conceived in 1988 by Paul Raskin, President at Tellus Institute and developed under his supervision. The purpose was to create a flexible instrument, integrated, and transparent to sustainable evaluate the current water demand and supplying models exploring alternative and long-term scenarios. The integrated approach of water management locates the water resource in the context of a dilemma between the demand on one hand and also the problem of water quality and conservation on the other hand. This system is distinguished by the integrated approach for the water system simulation, locating the demand for the water resource, equipment efficiency, re-use, price on the same side with the source, surface and underground flow, water reserves and transfer. As data basis WEAP brings a system to maintain the information regarding the water demand and source. As a prognosis instrument WEAP simulates the water demand, source, inflow, generates pollution, treatment and water evacuation. It also evaluates a large range of options regarding water management, taking into consideration the multiple usages of water systems.

hydrographical basin; water demand; soil moisture; prognosis; soil quality

Presentation: oral