Comparison of the Spatiotemporal Variability of Temperature, Precipitation, and Maximum Daily Spring Flows in Two Watersheds in Quebec Characterized by Different Land Use

Table 2

Hydroclimate variables; results of the Lombard method analysis.

Variables	L’Assomption River watershed			Matawin River watershed
	Sn	T1	T2	Sn	T1	T2
Maxf (°C)	0.0434	1945	1946	0.0050	—	—
Maxw (°C)	0.0385	—	—	0.0093	—	—
Maxs (°C)	0.0229	—	—	0.0121	—	—
minf (°C)	0.0764	1945	1948	0.0050	—	—
minw (°C)	0.0385	—	—	0.0934	1952	1953
mins (°C)	0.0648	1978	1979	0.0675	1975	1976
TSF (mm)	0.0147	—	—	0.1182	1974	1976
STR (mm)	0.0550	1977	1980	0.0459	1979	1980
TP (mm)	0.0841	1991	1992	0.0016	—	—
SMF (L/s/km^2)	0.0195	—	—	0.0553	1967	1970
STF (L/s/km^2)	0.0199	—	—	0.0694	1986	1987

Lombard test Sn values > 0.0403 are statistically significant at the 5% level. T1 and T2 are the years of start and end, respectively, of significant changes in mean and variance values of a given series. f: fall; w: winter; s: spring.