2004 UC Proceedings Abstract

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GIS and Analytic Hierarchy Process for Siting Water Harvesting Reservoirs
Track: Water Resources
Author(s): Wael Jabr, Faraj A. El-Awar

In this study, a methodology for siting water harvesting reservoirs was developed and applied in a 300 km2 area of Irsal-Lebanon characterized by low and erratic precipitation to improve the agriculture potential. This involved development and application of a three-step Hydro-Spatial Analytical Hierarchy Process (AHP). First ArcGIS was used to produce pertinent spatial coverages. In the second step, Watershed Modeling System (WMS) was used to simulate the runoff in the watersheds. Finally, in the third step, a decision hierarchical structure using the AHP was developed and implemented to rank various potential reservoir sites according to their suitability expressed in terms of a Reservoir Suitability Index. As a practical outcome of this study, a water harvesting reservoir was actually excavated at the outlet of the highest ranking watershed.

Wael Jabr
Khatib & Alami
GIS Services Division
P.O.Box 14-6203
Beirut , Beirut 1105 2100
LB
Phone: 961 1 843 843
Fax: 961 1 844 400
E-mail: wjabr@kacec.com

Faraj A. El-Awar
Azar Bldg, 7th floor
Donnawi Street, Moseitbeh
Beirut
Lebanon
Phone: 961-3-746 484
Fax: 961-1-367 529
E-mail: felawar@yahoo.com