Statistical analysis of possible trends for extreme floods in northern Sweden

With ongoing climate change, analysis of trends in maximum annual daily river flow is interest. Flow magnitude and timing during the year were investigated this study. Observations from 11 unregulated rivers northern Sweden analysed, using extreme-value distributions with time-dependent parameters. The Mann–Kendall test was used to investigate possible trends. statistics revealed no significant for stations considered, but showed a upward trend some stations. For (day year), downward two (with longest records). This implies that day occurring earlier Sweden.