Using raster and vector data to identify objects for classify in flood risk. A case study: Raciborz

Mariusz Porczek,Dorota Rucińska,Stanisław Lewiński,T.A Przylibski,D Kasza

doi:10.1051/e3sconf/20182900026

Abstract

The severe flood of 1997, which seriously affected Polish, Czech and German territories, gave impetus to research into the management of flood-prone areas. The material losses caused by the “Flood of the Millennium” totalled billions of Polish zloty. The extent of the disaster and of infrastructure repair costs changed the attitude of many branches of the economy, and of science. This is the direct result of consideration of the introduction of changes into spatial management and crisis management. At the same time, it focused the interest of many who were trained in analysing the vulnerability of land-use features to natural disasters such as floods. Research into the spatial distribution of geographic environmental features susceptible to flood in the Odra valley was conducted at the Faculty of Geography and Regional Studies of the University of Warsaw using Geographic Information Systems (GIS).This study seeks to examine the possibility of adapting vector and raster data and using them for land-use classification in the context of risk of flood and inundation damage. The analysed area of the city and surrounding area of Raciborz, on the upper Odra River, is a case study for identifying objects and lands susceptible to natural hazards based on publicly available satellite databases of the highest resolution, which is a very important factor in the quality of further risk analyses for applied use.The objective of the research was to create a 10×10-m-pixel raster network using raster data made available by ESA (Copernicus Land Monitoring Service) and vector data from Open Street Map.

Highlights

Changes in population size and increased population density in at-risk areas are directly responsible for the increasing losses resulting from hazardous natural events, including heavy rainfall and flooding
Spatial planning, which takes into account natural disasters and which adapts to places exposed to extreme natural events is a very important aspect of risk management
Work on the use of Geographic Information Systems (GIS) and remote sensing techniques to assess a variety of phenomena, including the geographical [3,4,5,6,7] are subject to continuous development from the 90s

Summary

Introduction

Changes in population size and increased population density in at-risk areas are directly responsible for the increasing losses resulting from hazardous natural events, including heavy rainfall and flooding. There is increasing use of areas such as floodplains, artificial and natural polders, and escarpments, as well as of places either susceptible to landslide or surrounded by environmental features, which would hamper evacuation. Natural hazards in areas of human activity lead to major losses, both societal and material They can cause irreversible damage to features of the natural environment and cultural heritage. Such events can slow local development as a result of falling investment and the frequent inability to rebuild damaged infrastructure and economic resources related to agriculture, industry or services. Spatial planning, which takes into account natural disasters and which adapts to places exposed to extreme natural events is a very important aspect of risk management

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Conclusion