Bayesian Data-Driven approach enhances synthetic flood loss models

Autor: Sally J. Priest, Heidi Kreibich, Alessio Domeneghetti, Dennis Wagenaar, Christophe Viavattene, Nivedita Sairam, Bruno Merz, Kai Schröter, Daniela Molinari, Francesca Carisi, Fabio Brill
Přispěvatelé: Sairam N., Schroter K., Carisi F., Wagenaar D., Domeneghetti A., Molinari D., Brill F., Priest S., Viavattene C., Merz B., Kreibich H.
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Environmental Modelling and Software
ISSN: 1364-8152
Popis: Flood loss estimation models are developed using synthetic or empirical approaches. The synthetic approach consists of what-if scenarios developed by experts. The empirical models are based on statistical analysis of empirical loss data. In this study, we propose a novel Bayesian Data-Driven approach to enhance established synthetic models using available empirical data from recorded events. For five case studies in Western Europe, the resulting Bayesian Data-Driven Synthetic (BDDS) model enhances synthetic model predictions by reducing the prediction errors and quantifying the uncertainty and reliability of loss predictions for post-event scenarios and future events. The performance of the BDDS model for a potential future event is improved by integration of empirical data once a new flood event affects the region. The BDDS model, therefore, has high potential for combining established synthetic models with local empirical loss data to provide accurate and reliable flood loss predictions for quantifying future risk.
Databáze: OpenAIRE