Science Source
Detection of trends in hydrological extremes for Canadian watersheds
- Examines the detection of trends in extreme hydrological events, both high and low flow events, for streamflow gauging stations in Canada
- Analyzes a total of 68 gauging stations having a nominal record length of at least 50 years for two analysis periods of 50 and 40 years
- States that the database of Canadian rivers investigated represents a diversity of hydrological conditions encompassing different extreme flow generating processes and reflects a national scale analysis of trends
- Finds that annual and spring maximum flows show decreasing trends in flow magnitude and decreasing trends in event timing (earlier events)
- Finds that low flow magnitudes exhibit both decreasing and increasing trends
