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Title: Multivariate pluvial flood damage models

Depth–damage-functions, relating the monetary flood damage to the depth of the inundation, are commonly used in the case of fluvial floods (floods caused by a river overflowing). We construct four multivariate damage models for pluvial floods (caused by extreme rainfall) by differentiating on the one hand between ground floor floods and basement floods and on the other hand between damage to residential buildings and damage to housing contents. We do not only take into account the effect of flood-depth on damage, but also incorporate the effects of non-hazard indicators (building characteristics, behavioural indicators and socio-economic variables). By using a Tobit-estimation technique on identified victims of pluvial floods in Flanders (Belgium), we take into account the effect of cases of reported zero damage. Our results show that the flood depth is an important predictor of damage, but with a diverging impact between ground floor floods and basement floods. Also non-hazard indicators are important. For example being aware of the risk just before the water enters the building reduces content damage considerably, underlining the importance of warning systems and policy in this case of pluvial floods. - Highlights: • Prediction of damage of pluvial floods using also non-hazard information • We includemore » ‘no damage cases’ using a Tobit model. • The damage of flood depth is stronger for ground floor than for basement floods. • Non-hazard indicators are especially important for content damage. • Potential gain of policies that increase awareness of flood risks.« less
Authors:
 [1] ;  [2] ;  [3] ; ;  [1]
  1. HIVA — University of Louvain (Belgium)
  2. (Belgium)
  3. SHERPPA — Ghent University (Belgium)
Publication Date:
OSTI Identifier:
22479752
Resource Type:
Journal Article
Resource Relation:
Journal Name: Environmental Impact Assessment Review; Journal Volume: 54; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ALARM SYSTEMS; BEHAVIOR; BELGIUM; DAMAGE; ENERGY POLICY; ENVIRONMENTAL POLICY; FLOODS; FLOORS; FORECASTING; FOREIGN POLICY; FUNCTIONS; GAIN; HAZARDS; INFORMATION; MULTIVARIATE ANALYSIS; POTENTIALS; RESIDENTIAL BUILDINGS; RIVERS; WATER