Author(s): Donya Dezfooli, Kumars Ebrahimi, Shahab Araghinejad
Linked Author(s): Donya Dezfooli
Keywords: CCME, climate variability, Dez River, surface water quality, Wilcox Diagram
Abstract: Climate variability could be defined as the climatic changes compared to the mean value. The increment of the greenhouse gases has deteriorated climate variability which in turn might exert a wide range of impacts on the quality and quantity of surface water resources. Therefore, not only it decreases available water resources, it also increases the cost of refinery and purification. This paper aims to analyze the impacts of climate variability on the quality of surface water resources and examine the methods used to assess the quality of surface water resources at Tale-Zang station, Dez River Iran. Two climate parameters namely precipitation and temperature were employed to analyze the climate variability. The Canadian Council of Ministers� Environment Water Quality Index (CCME-WQI) and Wilcox Diagram were applied to classify water quality. The results reveal that there is climate variability over the studied period which led to the emergence of dry and wet periods in the region. Furthermore, the results show that Wilcox diagram in incapable of explaining the quality status in terms of climate variability in most years of the studied period while CCME indicated that in most years, climate variability did not result in the emergence of critical values regarding the qualitative parameters under the study and the water quality was classified as good (80-95)
Year: 2017