Climate Change Impacts on Hydro-Climatic Regimes in the Peace and Columbia Watersheds, British Columbia, Canada
Author: R.R. Shrestha, A.J. Berland, M.A. Schnorbus, A.T. Werner
This study analyzed potential climate-induced change signals in the Peace and the Upper Columbia watersheds based on two independent studies: Hydrologic Modelling (HM) (Schnorbus et al. 2011; Werner 2011) and Regional Climate Modelling Diagnostics (RCMD) (Rodenhuis et al. 2011). In the HM study, downscaled GCM outputs were used as forcing data to drive the VIC hydrologic model, while in the RCMD study, outputs derived from the CGCM3 driven CRCM were used. Therefore, there are major differences in the two approaches, notably in: scale (HM: watershed scale; RCMD: North-American domain), resolution (HM: 27-31 km2; RCMD: 45-km horizontal mesh true at 60º N), hydrologic model (HM: VIC hydrologic model calibrated for watershed runoff; RCMD: CLASS without calibration of watershed specific runoff), climate forcings (HM: statistically downscaled and bias corrected GCMs; RCMD: dynamically downscaled CGCM3, without bias correction). Given such differences in the two approaches, the outputs from the two methods can also be expected to differ.
See report for more detailed results and conclusions.
See report for more detailed results and conclusions.
Resources Data:
Name: SHRESTHA.SYNTHESIS.FINALREPORT.APR2011
Format: PDF
URL: https://pacificclimate.org/sites/default/files/publications/Shrestha.Synthesis.FinalReport.Apr2011.pdf
Additional Info
Study Years: 2011
Published: 2011
Topics
Tags: Annual Discharges, Climate Change, Columbia River, Hydrology, Precipitation, Runoff, TemperatureClimate Change Impacts on Hydro-Climatic Regimes in the Peace and Columbia Watersheds, British Columbia, Canada
Author: R.R. Shrestha, A.J. Berland, M.A. Schnorbus, A.T. Werner
Tags: Annual Discharges, Climate Change, Columbia River, Hydrology, Precipitation, Runoff, Temperature
This study analyzed potential climate-induced change signals in the Peace and the Upper Columbia watersheds based on two independent studies: Hydrologic Modelling (HM) (Schnorbus et al. 2011; Werner 2011) and Regional Climate Modelling Diagnostics (RCMD) (Rodenhuis et al. 2011). In the HM study, downscaled GCM outputs were used as forcing data to drive the VIC hydrologic model, while in the RCMD study, outputs derived from the CGCM3 driven CRCM were used. Therefore, there are major differences in the two approaches, notably in: scale (HM: watershed scale; RCMD: North-American domain), resolution (HM: 27-31 km2; RCMD: 45-km horizontal mesh true at 60º N), hydrologic model (HM: VIC hydrologic model calibrated for watershed runoff; RCMD: CLASS without calibration of watershed specific runoff), climate forcings (HM: statistically downscaled and bias corrected GCMs; RCMD: dynamically downscaled CGCM3, without bias correction). Given such differences in the two approaches, the outputs from the two methods can also be expected to differ.
Summary
See report for more detailed results and conclusions.