What if water simply does not infiltrate?
Avatar

What if water simply does not infiltrate?

by Angel J. Gordillo-Rivero, University of Sevilla, Sevilla, Spain

This photograph was shot on 8 February 2013 in a study area near Almadén de la Plata, in the Sierra Norte (Sevilla, Spain). We can see a water drop resting on a water-repellent soil surface. This drop stayed for more than ten minutes without infiltrating