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Article

An Application of Correlation and Spectral Analysis in Hydrological Study of Neighboring Karst Springs

Faculty of Civil Engineering, Architecture and Geodesy, University of Split, 21000 Split, Croatia
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Water 2020, 12(12), 3570; https://doi.org/10.3390/w12123570
Received: 16 November 2020 / Revised: 15 December 2020 / Accepted: 16 December 2020 / Published: 19 December 2020
(This article belongs to the Special Issue Recent Advances in Karstic Hydrogeology)
Various methods of time series analysis have been used in studies of karst hydrological systems. Among these methods, correlation and spectral analysis have had an important role. The correlation analysis most often has been based on determination of correlation coefficients and correlation functions. Partial correlation functions (PCF) are a mathematical tool of the correlation analysis which practical applicability in karst hydrology is insufficiently explored. In this study, the correlation and spectral analysis are applied on the catchment of Rumin Springs located in the Dinaric karst area between Croatia and Bosnia and Herzegovina. The available daily data are the rainfall, air temperature and relative humidity from three locations, as well as the discharge from two springs. The periods before and after the construction of HPP Orlovac in 1973 are analyzed. The basic hypothesis is that a difference between PCF obtained for two neighboring karst springs describe a difference in their functioning. The results of application show that PCF can resolve some ambiguities concerning the effects included in correlation functions and can provide the additional information that cannot be obtained by other methods of time series analysis. The obtained results are mostly in accordance with the present knowledge, and they support the existing hypotheses about the functioning of Rumin Springs. View Full-Text
Keywords: correlation and spectral analysis; partial correlation function; karst hydrology; karst spring; Rumin Springs correlation and spectral analysis; partial correlation function; karst hydrology; karst spring; Rumin Springs
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MDPI and ACS Style

Denić-Jukić, V.; Lozić, A.; Jukić, D. An Application of Correlation and Spectral Analysis in Hydrological Study of Neighboring Karst Springs. Water 2020, 12, 3570. https://doi.org/10.3390/w12123570

AMA Style

Denić-Jukić V, Lozić A, Jukić D. An Application of Correlation and Spectral Analysis in Hydrological Study of Neighboring Karst Springs. Water. 2020; 12(12):3570. https://doi.org/10.3390/w12123570

Chicago/Turabian Style

Denić-Jukić, Vesna; Lozić, Ana; Jukić, Damir. 2020. "An Application of Correlation and Spectral Analysis in Hydrological Study of Neighboring Karst Springs" Water 12, no. 12: 3570. https://doi.org/10.3390/w12123570

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