Application of Weap to Assess Future Water Demands: The State of Art

Integrated water resources management is considered as the primary approach in addressing sustainable water resources. Decision Support Systems (DSS) can provide effective tools for water allocation, supply and demand analysis. The present paper describes the review of the river basin simulation modeling using Water Evaluation and Planning (WEAP) DSS tool for allocating water resources among various users. The step by step modeling procedure along with calculation algorithm at each stage for assessing future water demands using WEAP is studied in this paper. The model has been used to assess future water demands in many basins such as Limpopo Basin, Samuel (2006), Olifant basin, Roberto (2007), Blue Nile, Matthew (2009) and Niger River, Zakari (2011). The process involves studying model structure, setting general parameters, entering data for components of river basin system viz. supply component (river), demand site (agriculture, domestic, industrial etc.) and delivery systems. Model performance can be evaluated statically by comparing the observed and simulated values thereby accomplishing calibration of model. If variation in values is acceptable then the model's prediction is valid and reliable and hence can be used to assess future water demands. Then Scenarios need to be formulated and evaluated. Based on the results obtained best suitable action may be chosen for assessing future water demands for basin. Citation: Minal M. Jariwala, Dr. S & S. S. Ghandhy Government Engineering college, Surat; Prof. B. M. Vadher ,Dr. S & S. S. Ghandhy Government Engineering college, Surat. "Application of Weap to Assess Future Water Demands: The State of Art." Global Research and Development Journal For Engineering : 598 - 602.