Articles | Volume 25, issue 9
Research article
24 Sep 2021
Research article |  | 24 Sep 2021

A global algorithm for identifying changing streamflow regimes: application to Canadian natural streams (1966–2010)

Masoud Zaerpour, Shadi Hatami, Javad Sadri, and Ali Nazemi

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Subject: Rivers and Lakes | Techniques and Approaches: Modelling approaches
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Cited articles

Aksamit, N. O. and Whitfield, P. H.: Examining the pluvial to nival river regime spectrum using nonlinear methods: Minimum delay embedding dimension, J. Hydrol., 572, 851–868,, 2019. 
Amir Jabbari, A. and Nazemi, A.: Alterations in Canadian Hydropower Production Potential Due to Continuation of Historical Trends in Climate Variables, Resources, 8, 163,, 2019. 
Arheimer, B. and Lindström, G.: Climate impact on floods: changes in high flows in Sweden in the past and the future (1911–2100), Hydrol. Earth Syst. Sci., 19, 771–784,, 2015. 
Arnell, N. W. and Gosling, S. N.: The impacts of climate change on river flow regimes at the global scale, J. Hydrol., 486, 351–364,, 2013. 
Assani, A. A., Landry, R., and Laurencelle, M.: Comparison of interannual variability modes and trends of seasonal precipitation and streamflow in southern Québec (Canada), River Res. Appl., 28, 1740–1752,, 2012. 
Short summary
Streamflow regimes are changing globally particularly in cold regions. We develop a novel algorithm for detecting shifting streamflow regimes using changes in first and second moments of ensemble streamflow features. This algorithm is generic and can be used globally. To showcase its application, we assess alterations in Canadian natural streams from 1966 to 2010 to provide the first temporally consistent, pan-Canadian assessment of change in natural streamflow regimes, coast to coast to coast.