Water balance components of the Katlabuh lake

Authors: Gopchenko E.D., Shakirzanova Zh.R., Medvedeva Y.S., Burukova M.M.

Year: 2016

Issue: 20

Pages: 52-60


Introduction. During last decades, because of decrease of the area of land irrigation, volumes of water intake from the Katlabuh reservoir also significantly decreased and pumping of water from the Danube River stopped at all. All this caused deterioration of water quality. In particular, the salinity of the Katlabuh Lake in recent years exceeds by 2–2,5 times permissible rates for drinking and irrigation water.
Purpose. The purpose consists in analyzing physical and geographic, morphometric, hydrological, hydraulic characteristics of the Katlabuh lake and rivers feeding it; calculation of water balance components of the Katlabuh lake in 2007-2014.
Methods. Well-known statistical methods are used to analyze available materials of observations for calculation of water balance components. Regional methods and effective regulatory documents are used to determine unknown water balance components. The method of water balance is one of fundamental scientific approaches with respect to research of hydrological regime of reservoirs, lakes and ponds.
Results. Results show that precipitation on the water surface of the lake and supply of water from the Danube River flowing by gravity form, to a significant extent, an input portion of water balances. As for loss of water balances it is worth to note that evaporation constitutes the largest percentage with water discharges to the Danube River coming after it. During summer months the water from the Katlabuh Lake supports levels of the system of lakes Lung – Safyan. The values of discrepancies of water balances in 2007-2014 fall within the limits of accuracy of the source information.
Conclusion. The purpose of further developments with regard to the Katlabuh Lake consists in calculation of salinity balances on the basis of water balances which will provide an opportunity to verify accuracy of performed calculations.

Tags: discrepancies; evaporation; groundwater feed; infiltration; lateral inflow; precipitation; water balance


  1. Lake Katlabuh: (Rules of operation reservoirs. Ukryuzhhyprovodhoz). Odessa, 2000. 74 p. (In Russian).
  2. Gushlya A.V., Mezentsev V.S. Vodno-balansovye issledovaniya [Water-balance investigation]. Kiev: Vyshcha shkola. Head Publ., 1982. 229 p.
  3. Kuznychenko S.D. Vodnyy i solevoy rezhym sistemy ozer Kugurluy – Yalpug v usloviyah ih zaregulirovaniya: dis kand. geogr. nauk: 11.00.07, ODEKU [Water and salt mode of the system of lakes of Yalpug – Kugurluy in the conditions of their regulation.: dis. cand. geogr. sciences: 11.00.07, OSENU]. Odessa, 2005. 294 p.
  4. Medvedeva J.S. Vodnyy ta sol’ovyy rezhymy ozera Kytay: dis. kand. geogr. nauk: 11.00.07, ODEKU [Water and salt regimes of Kitay Lake: dis. cand. geogr. sciences: 11.00.07, OSENU]. Odessa, 2010. 223 p.
  5. Gopchenko E.D., Loboda N.S. Primenenie metodov statisticheskogo modelirovaniya pri otsenke izmeneniya godovogo stoka rek pod vliyaniem orosheniya [Application of statistical modeling in the evaluation of changes in annual river flow under the influence of irrigation]. Meteorologiya i gidrologiya – Meteorology and Hydrology, 1986, no. 9, pp 79 – 84.
  6. Manual for the definition of estimated hydrological characteristics. Leningrad: Gidrometeoizdat, 1984. 448 p. (In Russian).
  7. Gopchenko E.D., Loboda N.S. Vodnye resursy Severo–Zapadnogo Prichernomor’ya (v estestvennyh i narushennyh antropogennoy deyatel’nost’yu usloviyah) [Water resources of the north – western Black Sea (in natural and broken by anthropogenic activity terms)]. Kyiv: KNT, 2005. 192 p.
  8. Befani A.N. Osnovnye polozheniya teorii rechnogo stoka [Basics of the theory of river flow]. Trudy OGMI – Proc. OSMI, 1958, Iss.12, pp. 99 – 164.
  9. Sorokin V.G. Sredniy mnogoletniy stok oroshaemyh rayonov yuga Evropeyskoy territorii Sovetskogo Soyuza [Average annual flow of the irrigated areas of southern European part of the Soviet Union]. Meteorology, climatology and hydrology – Meteorologiya, klimatologiya i gidrologiya, 1974, pp. 121 – 129.
  10. Zaykov B.D. Ocherki po ozerovedeniyu, ch.2 [Essays on Limnology , part 2]. Leningrad: Gidrometeoizdat, 1960. 240 p.
  11. Danuta Danelyak. Opredelenie ispareniya s poverhnosti sushi v usloviyah antropogennogo vozdeystviya: dis. kand. geogr. nauk [Determination of evaporation from the land surface in the conditions of anthropogenic influence: dis. the candidate geogr. sciences: 11.00.07]. Odessa, 1989. 253 p.
  12. Klibashev K.P., Goroshkov I.F. Gidrologicheskie raschety [Hydrological calculations]. Leningrad: Gidrometeoizvdat, 1970. 458 p. (Ed.: A.I. Chebotarev).
Download full text (PDF)