Vol.11, No 2, 2013 pp. 147 - 168
UDC 556:551.578.46=111
DOI: 10.2298/FUACE1302147S

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HYDROLOGICAL MODELING WITH SPECIAL REFERENCE TO SNOW COVER PROCESSES
Milan Stojković, Nikola Milivojević
Institute for the Development of Water Resources "Jaroslav Černi"
E-mail: Milan.Stojkovic@jcerni.co.rs

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A physically-based distributed hydrologic model was applied in this research. The river basin, or watershed, was discretized with a square grid, where each square carried morphological data about a portion of the watershed, the vegetation, the soil composition, the hydrogeological layer, and the like. The effect of weather stations was defined by Thiessen polygons, including correction for altitude. The hydrological model was continuous, with a one-day time step. It was partitioned into three reservoirs: vegetation, snow and soil. The snow reservoir was defined using the degree-day and temperature index methods. The hydrologic model was applied to the basin of the Banjska River, which is a tributary of the Južna Morava.
Key words: Hydrological modeling, snow accumulation, snowmelt.

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HIDROLOŠKO MODELIRANJE SLIVA SA POSEBNIM OSVRTOM NA PROCESE U SNEŽNOM POKRIVAČU U radu je korišćen fizički zasnovan hidrološki model sa rasprostranjenim parametrima. Slivno područje je diskretizovano mrežom kvadrata gde će svaki kvadrat ima podatke o morfološkim karakteristikama dela sliva, biljnom pokrivaču, pedološkom sastavu tla, hidrogeološkom sloju i drugo. Uticaj meteoroloških stanica definisan je Thiessen-ovim poligonima uz korišćenje korekcije po visini. Hidrološki model je kontinualan sa vremenskom diskretizacijom koja iznosi jedan dan. Hidrološki model je dekomponovan na tri rezervoara, pri čemu je rezervoar snega definisan metodom Stepen-Dan i metodom Temperaturnog Indeksa. Hidrološki model je primenjen na sliv Banjske Reke koja predstavlja pritoku Južne Morave.
Ključne reči: Hidrološko modeliranje, akumulisanje snega, otapanje snega