Water Management During Spring-Summer in Regina
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The main purpose of this research was to conduct water management during spring-summer in Regina, Saskatchewan, Canada. Results show that Regina is classified Dfb, there is seasonal variation in climate of this city. The total annual precipitation is 386 mm, which accounts for 77% from April to September. Over the studied time period of 45 years from 1970 to 2015 multiple climatic parameters are noted to have increase in their value e.g., precipitation increased by about 50 mm precipitation, temperature increased by 1.1oC and relative humidity by 6%. Wind speed has decreased by about -1.35 km/hr, whereas solar radiations have increased by 4 MJ/m2 from 1993 to 2003. Furthermore, the runoff coefficient is 0.6 because of the 63% of impervious areas (commercial, industrial and residential) and the low hydraulic conductivity of the open spaces. This city is flat terrain with overall slope ranging between 0.17% and 0.41% which results in water ponding during high intensity and short-term precipitation. Additionally, the total volume capacity of all water bodies is 84.0 x 106 m3 with most of the volume in the Wascana Lake which is about 82% of the total volume. This city has recently received severe events which were close to 100 year return period such as floods in September 2010 and June 2014, and the drought in 2017. This city is prone to flash flooding during spring-summer because the water volume is highly dependent on antecedent conditions. The change in storage was found to be negative during spring-summer. In an average year, this city is experiencing water deficit thus most of the time it is under drought-like conditions.