Quantifying Climate and Catchment Effects on Streamflow using Budyko Framework

Abstract: Streamflow variability is affected by both climate change and direct human impacts within the catchment. Quantification of the role of these two factors has significant implications for water resources. In recent years, Budyko-based analytical methods have been widely used for such quantification due to their simplicity and efficacy. We present a comparison of such methods to attribute changes in streamflow in four Model Parameter Estimation Experiment (MOPEX) catchments in the contiguous United States. Further, a new, improved Two-stage Decomposition method to separate the role of climate and catchment changes on streamflow is proposed, considering the uncertainty in the catchment parameter that further leads to a range of evaporative index values within a catchment.

Date/Time
Date(s) - 18/05/2023
5:00 pm - 6:00 pm