%0 Journal Article %T HYDROGEOLOGICAL SIGNIFICANCE OF RECESSION COEFFICIENTS AT THE EXAMPLE OF ISTRIAN SPRINGS %A Kosta Urumovi£¿ %A £¿eljko Dui£¿ %A Branko Hlevnjak %J Rudarsko-Geolo£¿ko-Naftni Zbornik %D 2009 %I University of Zagreb %X Hydraulic extract of discharge coefficient for the type of schematized karstic aquifer clearly expresses hydrogeological and geometrical parameters on which depends the value of this coefficient and is a very valuable parameter in the identification of groundwater system. On the example of Istrian springs Bula , Gradole and Fonte Gajo discharge coefficient indicates that the drainage area of Gradole spring is multiple times greater than the drainage area of other Istrian springs. %K recession coefficient %K drainage area %K karstic aquifer %U http://rgnzborad.rgn.hr/21_4.pdf