0011-4561 Determination of theoretical swells in gauged catchments using Warsaw University of Technology method and Cracow University of Technology method ‒ part I ‒ method’s description Determination of theoretical swells in gauged catchments using Warsaw University of Technology method and Cracow University of Technology method ‒ part I ‒ method’s description Gądek Wiesław author Instytut Inżynierii i Gospodarki Wodnej, Wydział Inżynierii Środowiska, Politechnika Krakowska Correspondence to: Wiesław Gądek 13 02 2012 Środowisko Zeszyt 2-Ś (23) 2012 2012 95 104 Copyright © 2012 2012 <p> This article has been divided into two parts. First part describes calculation procedure for theoretical flood waves in gauged catchments using the Cracow University of Technology method and Warsaw University of Technology method. Both methods are based on unified unit hydrograph (UHG). Second part presents cross evaluation of mentioned methods on in relation to records historical flood waves. Evaluation was performed on 8 different catchments in Upper Vistula Basin. Selected catchments represented small to big areas with mountainous, highlands and lowlands characteristics.</p>