Author(s)

J.L. de Kok

Abstract

Appropriate spatial resolution in flood damage modeling J.L. de Kok Department of Civil Engineering, Twente University, Netherlands Abstract An approach is presented to determine the appropriate spatial resolution of a flood damage model, and make an order-of-magnitude estimate for the mesh size at mu- nicipality level. The spatial distribution of the flood damage is considered as an approximation of a continuous flood damage landscape, which can be found by interpolation of the available grid. The truncation error due to this schematization is compared with the uncertainty in the total flood damage to determine the appro- priate spatial resolution. The results indicate that the present mesh size of 150 m seems reasonable. At municipality level the appropriate spatial resolution takes on values in the range between 100 m and 1000 m, depending on the local variability in flood damage density. 1 Introduction In 1993 and 1995 the lower Meuse suffered from severe floods causing over 200 M

Keywords