Review of the paper "An efficient two-layer landslide-tsunami numerical model: effects of momentum transfer validated with physical experiments of waves generated by granular landslides"

Abstract

The present paper deals with the numerical modelling of landslide-generated tsunamis by using a two-layer model, based on the shallow water equations, and a novel (semiempirical) momentum transfer approach based on the perfectly elastic collision principle. The topic addressed by the present paper is a relevant one in the landslidegenerated tsunamis research field. The scientific quality of the paper is good. The paper is in general well written and structured, defining clearly the objectives and describing the methodology and the results. Nevertheless, few points need to be clari-C1 NHESSD Interactive comment