334
L. Zaharia et al.
Table 10.2 Statistical
significance of trends in the
seasonal variability of the
maximum discharge of the
Valea Cerbului River at
Bu¸ steni gauging station
(1961–2010), according to
Mann-Kendall test
Season
Statistical test
Z
Level of
significance
(α)
Sen’s slope
Spring
(III–V)
−0.49
–
−0.002
Summer
(VI–VIII)
0.20
–
0.0011
Autumn
(IX–XI)
1.79
0.1
0.0044
Winter
(XII–II)
1.81
0.1
0.0027
Fig. 10.10 Annual number of floods and the linear trend (a) and total monthly number of floods
with the equivalent percentages (b), recorded at Bus , teni gauging station between 1961–2012
Fig. 10.11 The decadal monthly absolute frequency of floods (a) and decadal seasonal absolute and
percentage frequency of floods (b) at Bus , teni gauging station on Valea Cerbului River (1961–2010)
L. Zaharia et al.
Table 10.2 Statistical
significance of trends in the
seasonal variability of the
maximum discharge of the
Valea Cerbului River at
Bu¸ steni gauging station
(1961–2010), according to
Mann-Kendall test
Season
Statistical test
Z
Level of
significance
(α)
Sen’s slope
Spring
(III–V)
−0.49
–
−0.002
Summer
(VI–VIII)
0.20
–
0.0011
Autumn
(IX–XI)
1.79
0.1
0.0044
Winter
(XII–II)
1.81
0.1
0.0027
Fig. 10.10 Annual number of floods and the linear trend (a) and total monthly number of floods
with the equivalent percentages (b), recorded at Bus , teni gauging station between 1961–2012
Fig. 10.11 The decadal monthly absolute frequency of floods (a) and decadal seasonal absolute and
percentage frequency of floods (b) at Bus , teni gauging station on Valea Cerbului River (1961–2010)