Paper Details

Accurate and reliable estimates of streamflow sensitivity to climate drivers are needed to integrate the effectsof worldwide climate change as a result of global warming in future water supply planning. In this case, we used theelasticity model to assess the sensitivity of the streamflow to rainfall for Kunhar River basin considering three streamflow gauging stations including Kunhar River at Naran, Kunhar River at Talhata bridge, and Kunhar River at GarhiHabib Ullah for the study period of 1963-2007. The precipitation elasticity of streamflow ‘εp’, is represented by a ratioof the proportional change occurring in streamflow divided by the proportional change occurring in mean annualprecipitation.The results of the study present the sensitivity of the Kunhar River basin at the three gauging points i.e. at Naran,Talhata bridge, and Garhi Habibullah stations as 0.3, 0.5 and 0.8 respectively. This means that a. deviation of 1% fromthe long duration mean rainfall will bring 0.3%, 0.5% and 0.8% change in annual discharge at the afore mentionedgaging sites of the Kunhar river respectively. This study findings can be used to guide the use of elasticity techniques toquantify hydrological reactions to climate change that inform the region's policies for long-term water management.

Zahoor Khan, Fayaz Ahmad Khan, Afed Ullah Khan, “IMPACT ASSESSMENT OF RAINFALL ON STREAMFLOW SENSITIVITY: A CASE STUDY OF KUNHAR RIVER BASIN, PAKISTAN”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 6, Issue 8, pp. 58-61, August 2019.