Modeling climate change impact on the inflow of the Magat reservoir using the Soil and Water Assessment Tool (SWAT) model for dam management

7Citations
Citations of this article
40Readers
Mendeley users who have this article in their library.

Abstract

Understanding the impact of climate change on watersheds using hydrologic models is timely and vital to dam management. The study pre-dicts changes in the inflow of the Magat reservoir using the Soil and Water Assessment Tool (SWAT) under the two Representative Concentration Pathway (RCP) scenarios for future centuries. The monthly calibration process (18 years) and validation process (10 years) of the model resulted in an NSE of 0.73, R2 of 0.74, RSR of 0.52, PBIAS of 8.38, NSE of 0.56, R2 of 0.62, RSR of 0.66, and a PBIAS of 17.3, respectively. Under RCP 4.5 and RCP 8.5 scenarios, the model predicted that during the dry and normal years, there will be an average decrease of inflow of 18.56 and 5.41% but an increase of 19.25% during the wet years. Peak flow will likely occur in September for all the scenarios, with a maximum discharge of up to 342.46 m3/s. The study recommends the integration of the model results to update the dam discharge protocol on the forecasting of monthly and annual inflows of the Magat dam to aid the dam management in observing long-term changes in the flow of water going into the reservoir.

Cite

CITATION STYLE

APA

Singson, C. L., Alejo, L. A., Balderama, O. F., Bareng, J. L. R., & Kantoush, S. A. (2023). Modeling climate change impact on the inflow of the Magat reservoir using the Soil and Water Assessment Tool (SWAT) model for dam management. Journal of Water and Climate Change, 14(3), 633–650. https://doi.org/10.2166/wcc.2023.240

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free