Using AHP and Spatial Analysis to Determine Water Surface Storage Suitability in Cambodia

Cambodia suffers from devastating droughts in the dry season and floods wet season. These events’ impacts are further amplified by ineffective water resources infrastructure that cannot retain during Water harvesting (the collection management of floodwater or rainwater runoff to increase supply for domestic agricultural use) is an approach could improve Cambodia’s resiliency against floods. Despite known benefits harvesting, there currently few studies on suitability Cambodia. This research argues suitable sites can be identified combining various expertise evaluating hydrologic site conditions. Thirty-one local USA experts made pairwise comparisons between essential engineering criteria: soil drainage, geologic porosity, precipitation, land cover, slope. Then, model weights were calculated based comparisons. Using weights, a showed 19% Cambodian has high suitability, about 13% best suitability. help guide future projects climate identifying reservoirs.