List of figures
Fig.
1. Studied basins (purple) and streamflow gauge (black dots) in
southern Quebec province. 1: Acadie, 2: Nicolet, 3: Bécancour,
4: Famine, 5: Beaurivage, 6: Etchemin, 7: Matawin, 8: Ouelle,
9: Bras du Nord, 10: Batiscan, 11: York, 12: Godbout. Basins IDs are
ranked from south to north according to the latitude of basin centroids.
Fig.
2. Spring flood window from March to June and pre-event analysis
period. The thick vertical stippled lines indicate the automatically
detected flood onset date the peakflow date. The pre-flood analysis
period extends from the onset date to one day before the peakflow date,
to account for transfer times. Black curve: streamflow; blue bars:
rainfall (P); red line: snowmelt (M).
Fig.
3. Interannual variability of flood magnitude and timing observed in
the 12 study basins. (a) Peak streamflow (Qmax ,
mm/day); (b) peakflow timing (QmaxT , in day of
year) Basins are ranked by latitude, from south (ID#1) to north
(ID#12). 1: Acadie, 2: Nicolet, 3: Bécancour, 4: Famine, 5: Beaurivage,
6 : Etchemin, 7: Matawin, 8: Ouelle, 9: Bras du Nord, 10: Batiscan, 11:
York, 12: Godbout
Fig.
4. Boxplots showing the distribution of (a) the snowmelt volume (black)
and rainfall volume (grey) in the pre-flood period for each basin and
(b) the relative contribution of these volumes to the total runoff
volume during this period. Basins are ranked by latitude, from south
(ID#1) to north (ID#12).
Fig.
5. Correlogram showing Pearson’s linear correlation coefficient for all
antecedent factors (columns) and spring flow peak magnitude
(Qmax ) for the twelve basins (rows). Significant
correlations (p < 0.05) are highlighted in bold; blue
colors indicate negative correlations and brown colors positive
correlations.