Table 1 shows the number of events N and ranges with respect to the main hydraulic characteristics, cross-sectional mean velocity ⁠, flow area A and discharge Q_obs. In particular, as already observed, the discharge Q_obs was calculated on the basis of the point velocity measurements using the Mean-Section Method (UNI EN ISO 748 2008) at Ponte Nuovo, Santa Lucia and Pontelagoscuro cross-sections where velocity measurements were performed using a current meter; while using the Winriver II software at the Ohio, Allegheny and Monongahela cross-sections equipped with an ADCP. The cross-sectional mean velocity was obtained by dividing this discharge value by the flow area.

Table 1

Interval of main quantities observed during N flood events at river gauging stations

Location .	N .	Period/Date .	[m/s] .	A [m2] .	Q [m3/s] .
Ponte Nuovo	55	1982–2007	0.15–1.97	31.20–311.91	5.76–541.58
Santa Lucia	19	1990–2004	0.15–2.02	11.20–91.76	1.71–185.33
Pontelagoscuro	48	1984–1992	0.35–2.05	913.12–2,833.06	316.18–5,026.00
Ohio	1	27/03/2008	0.58	2,366.51	1,362.02
Allegheny	1	26/03/2008	0.79	1,577.86	1,248.00
Monongahela	1	20/05/2008	0.77	1,468.05	1,134.98

Location .	N .	Period/Date .	[m/s] .	A [m2] .	Q [m3/s] .
Ponte Nuovo	55	1982–2007	0.15–1.97	31.20–311.91	5.76–541.58
Santa Lucia	19	1990–2004	0.15–2.02	11.20–91.76	1.71–185.33
Pontelagoscuro	48	1984–1992	0.35–2.05	913.12–2,833.06	316.18–5,026.00
Ohio	1	27/03/2008	0.58	2,366.51	1,362.02
Allegheny	1	26/03/2008	0.79	1,577.86	1,248.00
Monongahela	1	20/05/2008	0.77	1,468.05	1,134.98

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