engleski

Karst springs discharge modeling by using the composite transfer functions: example of the Žrnovnica and Jadro Springs

This paper presents the results of application of Composite Transfer Functions (CTF) on the Jadro and Žrnovnica Springs located in the Dinaric karst area of Croatia. By using the CTF, irregular shapes of the tails of identified transfer functions can be avoided, and the simulations of long recession periods as well as the simulations of complete hydrographs become more successful. Investigations were performed in order to test practical applicability of CTF for karst springs discharge modelling and to give a contribution to the existing knowledge about hydrological functioning of the Jadro and Žrnovnica Springs. The results of the application of CTF are compared with the results obtained by applying nonparametric transfer functions and discussed. In spite of the results of the tracer tests which show that the Jadro and Žrnovnica Springs share mostly the same catchment, the results reveal that these two adjacent springs have different hydrological characteristics.

Karst spring; Rainfall-runoff model; Transfer function; Jadro Spring; Žrnovnica Spring

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