Erratum to: Hydrogeol J (2016)

DOI 10.1007/s10040-016-1418-7

In equation (3), v was incorrectly defined. It should be kinematic viscosity, thus:

$$ K=\frac{g}{12v}{b}^2 $$

with:

K – hydraulic conductivity (m/s)

g – gravitational acceleration (m/s2)

v – kinematic viscosity (m2/s)

b – fracture aperture (m)