This river and rain runoff, combined with strong onshore winds, has led to high levels of sea pollution.

BBC: Where to go while Biarritz battles beach pollution

From every rain simulations the runoff coefficient was estimated with a average of 0, 19 (min 0, 01 and max 0, 46).

UNESCO: AQUATACAMA

This document presents the design and evaluation of a rain simulator to study soil losses and runoff generation in erosion plots located in hilly bared soil.

UNESCO: AQUATACAMA