| Abstract | Rijeke Lika i Gacka ponornice su dinarskog krša. Zbog svoje spesifičnosti obje rijeke je
potrebno pručavati i analizirati jer se događa iznimno značajan fenomen na području kroz koje
protječu. Stoga je bilo potrebno primjeniti različite metodologije kojima bi se mogli donositi
zaključci i utvrditi pručavane pojave u ova dva susjedna sliva. Dok je rijeka Lika bujična rijeka
Gacka ima izrazito uravnoteženiji sustav, čemu je doprinjelo geografsko područje, a što
dokazuju i podaci koji su se obradili u radu. Kako je za svaku obradu potrebno poznavati
metodologiju kojom se obrađuju podaci tako je svaka metodologija opisana, a to je: osnovna
statistička obrada podataka, hod i trend, Gaussova i Gumbelova vjerojatnost pojavljivanja,
učestalost i trajnost, ali i skupne obrade kao korelacijska analiza i analiza homogensoti. Podaci
s kojima se raspolagalo u radu su s hidroloških postaja Izvor Gacke, Pećina, Čovići i Podgora
na rijeci Gacki te Budak i Akumulacija Sklope na rijeci Lici. Podaci su se obrađivali samostalno
za svaku postaju, ali vršila se i usporedba podataka sa stanicama na rijeci Gacki te stanicama
na rijeci Lici. Na temelju podataka sa svake stanice da se zaključiti da su izvorske zone
drugačije npr. Izvor Gacke i izvor Pećina su se pokazali kao postaje s različitim hidrološkim
podacima čemu se može pripisati to da se svaki izvor prihranjuje iz različitog vodonosnika.
Čovići i Podgora su gotovo pa identične stanice jer imaju iste hidrološke značajke, pa potom i
slične hidrološke podatke. Stanica Budak i Akumulacija Sklope na Lici su se pokazale sličnim
stanicama čemu u prilog ide sličnost proučavanih podataka. Nakon obrade za svaku rijeku
proučavala se i zajednička povezanost ove dvije rijeke jer postoje pretpostavke da se rijeka
Gacka prihranjuje sa rijekom Likom. Ova pretpostavka se ovim radom nije pokazala kao točna,
ali ona se ne opovrgava. Svakako je potrebno što intenzivnije provoditi monitoring i što više
obrađivati podatke sa što više metoda i sa svih hidroloških postaja na oba sliva da bi se mogli
donjeti bolji, a time i točniji zaključci. |
| Abstract (english) | The rivers Lika and Gacka are sinking rivers of the Dinaric karst. Due to their specific
characteristics, both rivers need to be studied and analysed, because of a very significant
phenomenon in the area through which they flow. Therefore, it was necessary to apply different
methodologies which could help in reaching conclusions and defining the studied phenomena
in these two neighbouring river basins. While the river Lika is a torrential river, the river Gacka
has a highly balanced system thanks to the geographical area, which is confirmed by the data
analysed in this thesis. Since for every analysis it is necessary to know the methodology used
in data analysis, each methodology is described. These are: basic statistical analysis of data,
data series and trends, Gaussian and Gumbel probability distribution, frequency and duration,
but also correlation and homogeneity analyses. The data used in the thesis were collected from
hydrological stations Izvor Gacke, Pećina, Čovići and Podgora on the river Gacka, and Budak
and Sklope reservoir on the river Lika. Data was analysed individually for each station, but
comparison of data from stations on the river Gacka and stations on the river Lika was also
made. Based on the data from each station, it can be concluded that the spring zones are
different; for instance, the Gacka spring and the Pećina spring have been shown as stations with
different hydrological data, which can be accounted for by the fact the springs are recharged
from different aquifers. Čovići and Podgora are almost identical stations because they have the
same hydrological features and consequently similar hydrological data. The analysis has shown
that the stations Budak and Sklope reservoir on the river Lika are similar stations, which is
supported by the similarity of the analysed data. Having analysed data for each river, an
interconnection between these two rivers was also considered, because of assumptions that the
river Gacka is recharged from the river Lika. The thesis doesn’t show this assumption to be
true, but it doesn’t refute it either. It is certainly necessary to intensify monitoring and analyse
data from all the hydrological stations in both basins with as many different methods as possible
in order to be able to reach better and more accurate conclusions. |
