GIS-Based Multi-Criteria Analysis For Mapping Potential Sites For Rainwater Harvesting In The Hamad Basin, Northeast Jordan. Mutawakil Obeidat Jordan University of Science and Arts Irbid-Jordan & Muheeb Awawdeh Yarmouk University Irbid-Jordan. INTRODUCTION.
Jordan University of Science and Arts
land surfaces, road surfaces or rock catchments using simple techniques such as pots, tanks and cistern as well as more complex techniques
4- storing rainwater from rooftops,Flow accumulation-an index which estimates the surface runoff for each cell in the terrain-the total area of the grid cells which flow through that cell per unit width of contour
Water harvesting Index (WHI)=(((Rw*Rr)+(FAW*FAR)+(Sw*Sr)+(LUw *LUr)+(STw *STr)+(DRw *DRr)+(DWw*DWr)+(DUw*DUr)) *(Fw *Fr) )*(CW*CR)
R: rainfall, FA: flow accumulation, S: slope, LU: land use, ST: soil texture, DR: distance to roads, DW: distance to wadi, DU: distance to urban, F: faults, C: curvature, w: weight, r: rating.