EFFECTS OF CLIMATE VARIABILITY ON SURFACE WATER QUALITY, Case Study: Gorganroud Basin, IRAN

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Hossein Dehban, Kumars Ebrahimi

Tuesday 30 june 2015

12:57 - 13:00h at North America (level 0)

Themes: (T) Extreme events, natural variability and climate change, (ST) Hydrological extremes: floods and droughts, Poster pitches

Parallel session: Poster pitches: 5I. Extreme - Flood Drought

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Water is a vital element of the universe, especially human life. Hence, focusing attention on quality and quantity of water resources is necessary. Climate variability and climate change are the main results of greenhouse gases, which can have a variety of impacts on the surface water quality and quantity. The main purpose of this paper is to show how the climate variability affects stream water quality variations. Gorganroud Basin, North of Iran, is the case study which was chosen for this aim, because of its reliable and valuable collected and recorded datasets from 1971-2011. To achieve the paper purpose, drought indices and the hysteresis loops analyses were employed. According to the results, the existence of intera-annual variations and hysteresis phenomenon, for all of the water quality parameters, is demonstrated.