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This research investigates changes in river flow dynamics in the Bow River watershed due to climate impacts over the past century.

Century‐Scale Shifts in Flow Dynamics of a Canadian Rockies Headwater Watershed Under a Changing Climate

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This research investigates changes in river flow dynamics in the Bow River watershed due to climate impacts over the past century.
Utilized a century-long hydroclimatological dataset (1923-2022) for analysis.
Applied trend analysis, correlation analysis, and wavelet coherence to assess flow patterns.
Defined low-flow periods using change points on the annual hydrograph.
Examined associations between flow dynamics and climate variables.
Flow seasonality weakened, with increased overwinter flow and decreased open-water flow.
No significant trend in mean annual flow at headwater stations was detected.
Low flows increased while high flows declined at lower elevations.
High flows showed stronger links to snow-related metrics than to precipitation.
Shifts in the timing of both high and low flows occurred earlier in the watershed.

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Analysis of flow seasonality and extremes in a Canadian Rockies watershed, suggesting adaptive management strategies are needed.

Kheirkhah et al. (2026) studied this question.

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