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Reconstructed River Water Temperature Dataset for Western Canada 1980–2018

Author

Listed:
  • Rajesh R. Shrestha

    (Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada, University of Victoria, 2472 Arbutus Rd., Victoria, BC V8N 1V8, Canada)

  • Jennifer C. Pesklevits

    (Watershed Hydrology and Ecology Research Division, Environment and Climate Change Canada, University of Victoria, 2472 Arbutus Rd., Victoria, BC V8N 1V8, Canada)

Abstract

Continuous water temperature data are important for understanding historical variability and trends of river thermal regime, as well as impacts of warming climate on aquatic ecosystem health. We describe a reconstructed daily water temperature dataset that supplements sparse historical observations for 55 river stations across western Canada. We employed the air2stream model for reconstructing water temperature dataset over the period 1980–2018, with air temperature and discharge data used as model inputs. The model was calibrated and validated by comparing with observed water temperature records, and the results indicate a reasonable statistical performance. We also present historical trends over the ice-free summer months from June to September using the reconstructed dataset, which indicate- significantly increasing water temperature trends for most stations. Besides trend analysis, the dataset could be used for various applications, such as calculation of heat fluxes, calibration/validation of process-based water temperature models, establishment of baseline condition for future climate projections, and assessment of impacts on ecosystems health and water quality.

Suggested Citation

  • Rajesh R. Shrestha & Jennifer C. Pesklevits, 2023. "Reconstructed River Water Temperature Dataset for Western Canada 1980–2018," Data, MDPI, vol. 8(3), pages 1-12, February.
    • Handle: RePEc:gam:jdataj:v:8:y:2023:i:3:p:48-:d:1081220
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    References listed on IDEAS

    as
    1. Morales-Marín, L.A. & Rokaya, P. & Sanyal, P.R. & Sereda, J. & Lindenschmidt, K.E., 2019. "Changes in streamflow and water temperature affect fish habitat in the Athabasca River basin in the context of climate change," Ecological Modelling, Elsevier, vol. 407(C), pages 1-1.
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