Three parameter based Streamflow elasticity model: Application to MOPEX basins in USA at Annual and Seasonal Scale

G. Konalapa, A. K. Mishra
2016 Hydrology and Earth System Sciences Discussions  
We present a three parameter streamflow elasticity model as a function of precipitation, potential evaporation and change in storage applicable at both seasonal and annual scales. The model was applied to 245 Model parameter estimation experiment (MOPEX) basins located in USA. We tested the performance of the modified equation and showed that at annual scale groundwater and surface water storage change also contributes significantly to the streamflow elasticity. It was found that there are
more » ... that there are significant differences among elasticities seasonally as well as spatially. Our observations indicated that streamflow elasticity of watersheds in eastern and western USA tends to vary in clusters and exhibit a cyclic seasonal pattern. It was observed that watershed hydroclimatology has a major influence on seasonal streamflow elasticity due to precipitation in comparison to potential evapotranspiration and storage change.
doi:10.5194/hess-2015-557 fatcat:dhw3tgs6azdcfgep4kph2wxm2q