He, Zhihua

Pomeroy, John

University of Saskatchewan's Research Archive

University of SaskatchewanHARVEST, https://harvest.usask.ca/Global Institute for Water Security Global Water Futures2023Assessing hydrological sensitivity tofuture climate change in the Canadiansouthern boreal forestHe, Zhihuahttps://hdl.handle.net/10388/15013Downloaded from HARVEST, University of Saskatchewan's Repository for ResearchSnow sublimation and snowcover duration will decline throughout the SBF. Snow processes in theeastern SBF are more sensitive to future climate change than in the west and central;Future warming will reduce snowpacks, soil freezing and enhance thawing and effective permeability,causing soil moisture to decrease by up to 27%, whilst subsurface runoff will be strongly enhanced.The SBF will switch to a higher water yield, higher ET region which is dominated by a more variable,less seasonal, rainfall-runoff fed streamflow.Zhihua He and John W. PomeroyCentre for Hydrology, University of Saskatchewan, Saskatoon, Saskatchewan, CanadaConclusionsAnnual meeting2023Changes in Snow HydrologyHe and Pomeroy, in reviewSouthern Boreal ForestThe Canadian Southern Boreal Forest (SBF) covers ~1.4 million km2The SBF is featured by seasonally frozen soils but little permafrost It is located within the Boreal Plains and Boreal Shield ecozonesAnnual precipitation generally increases from west to eastCRHM-based virtual basin hydrological modelAssessing hydrological sensitivity to future climate change in the Canadian southern boreal forest Cold Regions Hydrological Modellingplatform (CRHM), using modules for canopysnow interception, sublimation, andunloading, snowmelt, frozen soil infiltrationand thawing, ET, and hillslope runoff routingChanges in Soil HydrologyFenForest Channel and waterFen,15.7%Forest,81.6%Lake+river,2.7%WRF-CONUS outputs:ctrl, 2001-2013;pgw: 2087-2100 (RCP 8.5)White Gull Creek(WGC) is used as anexemplar to set up andvalidate the virtual basinmodels (In total 2243virtual basins)Change in Temperature, Precipitation, Evapotranspiration and Streamflow

Assessing hydrological sensitivity to future climate change in the Canadian southern boreal forest

https://harvest.usask.ca/bitstream/10388/15013/1/GWF2023_Poster_He_BorealForest_JP.pdf

Assessing hydrological sensitivity to future climate change in the Canadian southern boreal forest

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