Identification of Significant Flood Areas in Lithuania
- Authors: Stonevičius E.1, Valiuškevičius G.1
- 
							Affiliations: 
							- Department of Hydrology and Climatology
 
- Issue: Vol 45, No 1 (2018)
- Pages: 27-33
- Section: Water Resources and the Regime of Water Bodies
- URL: https://journals.rcsi.science/0097-8078/article/view/174292
- DOI: https://doi.org/10.1134/S0097807817050116
- ID: 174292
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Abstract
During preliminary flood risk assessment in Lithuania 54 significant flood areas (SFA) were identified. The detailed flood hazard and risk maps were prepared for these areas in 2014. European Union Floods Directive does not indicate the concrete criteria for SFA delineation. The uncertainty analysis shows that the total length of SFA is not very sensitive to used methodology. In some rivers the uncertainties of 100 year flood peek discharge (Q1%) were large, but the variation of SFA boundary location was relatively small due to properties of hydrological network. The catchment area and Q1% change rapidly near the junction with large tributaries, so the boundaries of SFA are usually attached to these junctions. The formal criteria are mostly used to evaluate the possibility of significant floods, but the delineation of SFA is usually based on subjective decision.
About the authors
Edvinas Stonevičius
Department of Hydrology and Climatology
							Author for correspondence.
							Email: edvinas.stonevicius@gf.vu.lt
				                					                																			                												                	Lithuania, 							Vilnius, LT-03101						
Gintaras Valiuškevičius
Department of Hydrology and Climatology
														Email: edvinas.stonevicius@gf.vu.lt
				                					                																			                												                	Lithuania, 							Vilnius, LT-03101						
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