Correlations between rainfall data and insurance damage data on pluvial flooding in The Netherlands

Conference paper (2012)
Department
Water Management (CEG) (TU Delft)
Copyright: © 2012 The Author(s)
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Published Date

14-07-2012

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Source:

HIC 2012: 10th International Conference on Hydroinformatics "Understanding Changing Climate and Environment and Finding Solutions", Hamburg, Germany, 14-18 July 2012

Faculty

Civil Engineering and Geosciences

Department

Water Management

Abstract

The objective of this paper is to establish relationships between rainfall extremes and damage data from Dutch insurance industry. Rainfall data are based on a network of 33 automatic rain gauges held by the Royal Netherlands Meteorological Institute. Rainfall characteristics, such as peak rainfall intensity and rainfall volume, are correlated with damage statistics of claims in the vicinity of the rain gauges. The results show that rainfallrelated damage mainly occurs during summer seasons. There is a weak relationship between property damage and rainfall intensities and between property damage and rainfall volumes for summer events. More data is needed to confirm these relationships. In a subsequent study this will be investigated by using weather radar data to obtain a higher spatial rainfall resolution and thus be able to include more insurance data.

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