Identifying urban areas prone to flash floods using GIS - preliminary results

Marzena Wicht , Katarzyna Osińska-Skotak

Abstract

The aim of this study is to develop a consistent methodology to determine urban areas that are particularly vulnerable to the effects of heavy, rapid rains. They are, as a result of climate change, more and more prevalent in the temperate climate, usually spring - summer from mid-May to late August - and involve the risk of flash floods. In recent years, the increase in incidences of such phenomena is noticeable throughout the whole of Europe. It is assumed that through the analysis of environmental and infrastructural conditions, using the developed methodology, it is possible to determine areas vulnerable to flooding due to torrential rains. This may lead to a better management, quicker response in case of a phenomenon, and even preventative measures to reduce the occurrence of adverse effects of torrential rains (for instance modernisation of the urban drainage system and development of methods to get rid of rapidly collected water). Identifying areas particularly vulnerable to the effects 10 of heavy rains can be achieved by adapting hydrological models, but they require an appropriate adjustment and highly accurate input data: (based in situ or radar measurements of precipitation, land cover, soil type, humidity, wind speed, vegetation species in a given area, growing season, the roughness and porosity of the cover and soil moisture) but such detailed data are generally hard to obtain or not available for less developed areas. It could also be achieved by performing spatial analysis in GIS environment, which is a more simplified form of modelling, but it gives results more quickly and the methodology can be adapted to the commonly available data. The proposed methodology was tested in Warsaw’s central sub-district - Powisle.
Author Marzena Wicht ZFTSIP
Marzena Wicht,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
, Katarzyna Osińska-Skotak ZFTSIP
Katarzyna Osińska-Skotak,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
Journal seriesHydrology and Earth System Sciences, ISSN 1027-5606
Issue year2016
Nohess-2016-518
Pages1-22
Publication size in sheets1.05
ConferenceEuropean Geosciences Union General Assembly 2016 (EGU General Assembly 2016), 17-04-2016 - 22-04-2016, Wiedeń, Austria
Keywords in EnglishGIS, urban areas, flash floods, urban floods
Internal identifier138/2016
Languageen angielski
File
2016_Wicht M., Osinska-Skotak K._Identifying urban areas_138.pdf / 13.12 MB / 2016_Wicht M., Osinska-Skotak K._Identifying urban areas_138.pdf 13.12 MB
Additional file
2016_oswiadczenie_Wicht,Osinska-Skotak_Identifying urban_138.pdf (file archived - login or check accessibility on faculty) 2016_oswiadczenie_Wicht,Osinska-Skotak_Identifying urban_138.pdf 401.26 KB
Score (nominal)45
ScoreMinisterial score = 45.0, 28-11-2017, ArticleFromJournalAndMatConf
Ministerial score (2013-2016) = 45.0, 28-11-2017, ArticleFromJournalAndMatConf
Publication indicators WoS Impact Factor: 2016 = 4.437 (2) - 2016=5.064 (5)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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