Erratum to: Water Resour Manage

DOI 10.1007/s11269-016-1402-y

Due to an oversight, equations 4 and 5 were wrongly captured in the published online pdf version. The correct presentation for equations 4 and 5 are shown below.

$$ \left]\begin{array}{cc}\hfill \overline{\overset{\frown }{\theta }}-{z}_{1-\alpha /2}{s}_{\overset{\frown }{\theta }};\hfill & \hfill \overline{\overset{\frown }{\theta }}+{z}_{1-\alpha /2}{s}_{\overset{\frown }{\theta }}\hfill \end{array}\right[ $$
(4)
$$ \theta \notin \left]\begin{array}{cc}\hfill \overline{\overset{\frown }{\theta }}-{z}_{1-\alpha /2}{s}_{\overset{\frown }{\theta }};\hfill & \hfill \overline{\overset{\frown }{\theta }}+{z}_{1-\alpha /2}{s}_{\overset{\frown }{\theta }}\hfill \end{array}\right[ $$
(5)