Table 1.

Statistics of the Flood Generating Processes

Process	Stratiform rainfall	Soil moisture excess	Snowmelt	Rain on snow	Convective rainfall
Overall relevance (% of all floods)	31.0	26.0	21.5	18.1	3.4
Average trend of relevance (% per decade)	0.49	1.55	−1.65	−0.41	−0.06
Average flood synchrony scale (distance as % of station average)	92.0 *	113.2 *	93.6 *	107.2 *	73.9 *
Average flood magnitude (% of station average)	100.7 **	103.2 *	97.0 *	98.0 *	98.8 **

Note. Floods that are generated by different processes have significantly different spatial extents (synchrony scales). The large‐extent soil moisture related floods have increased in frequency. The average scaled flood magnitudes are almost independent of the flood generation process

^* Synchrony scales and flood magnitudes significantly different from the overall mean (p = 0.001).

^** No significance.