DBPapers
DOI: 10.5593/SGEM2016/B31/S12.052

HISTORICAL FLOODS ON THE LOWER DANUBE AND THEIR CONSEQUENCE ON URBAN AREAS. CASE STUDY GALATI CITY (ROMANIA)

G. Banuc, I. Minea, I. Dicu
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-61-2 / ISSN 1314-2704, June 28 - July 6, 2016, Book3 Vol. 1, 399-406 pp

ABSTRACT
Floods on the Lower Danube led to widespread inundation and damages on Galați city’s evolution along the centuries. A good knowledge of the previous events represents the key of undersanding the way that the phenomena are occurring today. The catastrophic dimension of the floods recently happening all around the world warns of the critical need for hydrologic data series on floods over long time scales. After presenting the general context of floods on Lower Danube, the most important hydrological events that happend in the area of Galați, are analysed. First, this paper deals with written historical documents in order to reconstruct hydrological parameters of the historical floods that are afterwards corelated with the spatial evolution of the urban area of the city. There were created three reconstructions of major floods events corresponding to different stages of Galați city evolution (1893, 1941, 1958). Then, these reconstructions were comparated with a geographical information system which was created for multilayer analysis based on simulations of potential floods at reference levels of the Danube at Galați nowadays. More than this, the autors computed the Danube’s discharges between 1920 and 2013 in order to establish if the frequency of floods has been increased in the last dacades. The reconstructions showed that the exposed areas of Galați to floods has constantly expand and the temporal analysis of discharges revealed that the floods frequency is higher and associated with the spatial evolution of urban area.

Keywords: Danube, Galați, histrical floods, frequency, reconstruction, urban area evolution