A Revised Approach to Flood Damage Estimation in Flood Risk Maps and Flood Risk Management Plans, Poland

Abstract

This article describes the determination of asset values in residential and industrial areas in Poland that can be used in the preparation of flood hazard and risk maps (FRMs) and flood risk management plans (FRMPs). In the Floods Directive’s first cycle of implementation (2010–2015), German indicators of asset value were adapted to Polish conditions. This approach was used due to the lack of national statistics necessary to determine the value of property. In this study, the asset values in residential and industrial areas were prepared on the basis of the nationwide household wealth survey conducted in 2016 by the Narodowy Bank Polski (the central bank of Poland) and other data available from Statistics Poland. The proposed approach enables the determination of asset values based on real, validated data. The obtained indicators result in higher and more realistic values of the assets of households (buildings with contents) and the assets of companies (fixed assets and stocks) operating in both residential and industrial areas. The proposed approach, as an extension in relation to the first planning cycle, has been implemented in the second cycle of FRMP preparation in Poland.

Flood risk assessments—Exploring maturity and challenges in Sweden

“…For instance, susceptibility data for objects is often absent from the plans and remains unassessed. However, solutions do exist, such as depth‐damage functions, which have been implemented in other member states (Albano et al, 2017; Carisi et al, 2018; Godyń, 2021; Huizinga et al, 2017). Moreover, depth‐damage functions and maximum loss values are accessible for various European countries, albeit to a limited extent for Sweden, through publications by the Joint Research Centre (Huizinga et al, 2017).…”

“…Direct consequences are often more apparent and, therefore, more easily assessed. There are several approaches for assessing direct damages that have been applied in flood risk management plans, such as using depth‐damage functions (Albano et al, 2017; Carisi et al, 2018; Godyń, 2021; Huizinga et al, 2017), multi‐criteria analysis (Adamson, 2018) or expert‐driven qualitative assessments (Albano et al, 2017; Molinari et al, 2016).…”

Flood-Triggering Rainfall and Potential Losses—The Copula-Based Approach on the Example of the Upper Nysa Kłodzka River

“…For each final FIZ, PFL were estimated on the basis of land use type in accordance with the methodology used in preparation of the updated flood risk maps [78] and the updated flood risk management plans for the Odra River basin [79]. The approach is based on the methodology for determining the property value indicators proposed by [80]. The property value indicators adopted in the research were indexed using the growth in the economic indicators from 2016 to 2019 [79].…”

Approaches to Estimate the Socio-Economic Risks Caused by the River Flood

“…Methods of geographical analysis and forecasting have found wide application in almost all areas of the economic activity, and in particular in predicting the occurrence and development of dangerous hydrological phenomena (flooding of the territory) [3,6]. Many scientists are developing methods and algorithms for calculating the boundaries and zones of flooding [8], and flood damage forecasting issues are particularly relevant for highly anthropogenic transformed territories [4,7]. This also applies to flooding in the floodplains of the rivers.…”

“…Risk is most often expressed by multiplying the probability of occurrence of a negative event by the severity of its consequences. In one form or another, a similar equation is used to express flood risk in many sources [3,4], but the specific variables vary significantly depending on the region and source data being assessed.…”