Attribution of observed streamflow changes in key British Columbia drainage basins

Simple item page
dc.contributor.authorNajafi, Mohammad R.
dc.contributor.authorZwiers, Francis W.
dc.contributor.authorGillett, Nathan P.
dc.date.accessioned2025-04-10T20:27:25Z
dc.date.available2025-04-10T20:27:25Z
dc.date.issued2017
dc.description.abstractWe study the observed decline in summer streamflow in four key river basins in British Columbia (BC), Canada, using a formal detection and attribution (D&A) analysis procedure. Reconstructed and simulated streamflow is generated using the semidistributed variable infiltration capacity hydrologic model, which is driven by 1/16° gridded observations and downscaled climate model data from the Coupled Model Intercomparison Project phase 5 (CMIP5), respectively. The internal variability of the regional hydrologic components using ~5100 years of streamflow was simulated using CMIP5 preindustrial control runs. Results show that the observed changes in summer streamflow are inconsistent with simulations representing the responses to natural forcing factors alone, while the response to anthropogenic and natural forcing factors combined is detected in these changes. A two‐signal D&A analysis indicates that the effects of anthropogenic (ANT) forcing factors are discernable from natural forcing in BC, albeit with large uncertainties.
dc.description.reviewstatusReviewed
dc.description.scholarlevelFaculty
dc.description.sponsorshipFunding forthis project is provided by the CanadianSea Ice and Snow Evolution (CanSISE) project.
dc.identifier.citationNajafi, M. R., Zwiers, F. W., & Gillett, N. P. (2017). Attribution of observed streamflow changes in key British Columbia drainage basins. Geophysical Research Letters, 44(21), 11012–11020. https://doi.org/10.1002/2017GL075016
dc.identifier.urihttps://doi.org/10.1002/2017GL075016
dc.identifier.urihttps://hdl.handle.net/1828/21774
dc.language.isoen
dc.publisherGeophysical Research Letters
dc.subjectUN SDG 13: Climate Action
dc.subject#journal article
dc.subjectPacific Climate Impacts Consortium (PCIC)
dc.subjectCanadian Centre for Climate Modelling and Analysis (CCCma)
dc.titleAttribution of observed streamflow changes in key British Columbia drainage basins
dc.typeArticle

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
najafi_mohammadr_GeophysResLett_2017.pdf
Size:
1.53 MB
Format:
Adobe Portable Document Format
Download

Collections

PCIC Publications
 
University of Victoria Libraries

We acknowledge and respect the Lək̓ʷəŋən (Songhees and Esquimalt) Peoples on whose territory the university stands, and the Lək̓ʷəŋən and W̱SÁNEĆ Peoples whose historical relationships with the land continue to this day.