ON THE INFLUENCE OF ICE COVER ON THE UNDERGROUND COMPONENT OF RIVER FLOW
The river network is the main drainage of underground waters of the territories. It is created over a long period and is determined by geological, climatic and orographic conditions. The draining capacity of a hydrographic network depends not only on its density, but also on the speed of water flowing down it. The latter is determined by the area of the living section, slope, roughness of the riverbed. The article shows that the river ice of the Northern rivers, as a seasonal hydraulic resistance, can also have a significant impact on the drainage capacity of the hydrographic network. On the example of river flow in warm and cold winters, it is shown that the ice cover regulates the participation of groundwater at different levels of drainage in the formation of river flow. As the climate warms, the regulatory role of the ice cover decreases. The rate of underground water treatment in the upper sections of river basins increases, accompanied by an increase in water content in the lower parts of the hydrographic network. Over the past 30-40 years, the contribution of groundwater in the watershed of the river basins to the supply of rivers in the forest zone in mezhen decreased by 20% compared to the previous "quasi-stationary" climate period. There is a "drying" of the upper reaches of river basins, despite the growth of annual precipitation. In the future, if the current trends of climate change continue, it is possible to further reduce the underground supply of rivers, as the drainage role of the hydrographic network will increase. The reduction of groundwater reserves in river basins will reduce their regulatory role in river flow and may increase the frequency of occurrence of extremely low water content. This should be taken into account when developing adaptive water management measures to climate change.
Alekseev V.R. Naledi [Frazil]. Novosibirsk, Publ. Nauka, 1987. 158 p. (In Russian).
Buzin V.A. Zatory l'da i zatornye navodneniya na rekakh [Ice jams and mash floods on rivers]. St. Petersburg, Publ. Gidrometeoizdat, 2004. 202 p. (In Russian).
Chizhov A.N. Formirovanie ledyanogo pokrova i pros-transtvennoe raspredelenie ego tolshchiny [Ice pack for-mation and space distribution of the ice pack depth]. Len-ingrad, Publ. Gidrometeoizdat, 1990. 125 p. (In Russian; abstract in English).
Donchenko R.V. Ledovyi rezhim rek SSSR [Ice regime of the USSR rivers]. Leningrad, Publ. Gidrometeoizdat, 1987. 246 p. (In Russian; abstract in English).
Gurevich E.V. Influence of air temperature on the river runoff in winter (the Aldan river catchment case study). Russian Meteorology and Hydrology, 2009, vol. 34, iss. 9, pp. 628-633. (Russ ed.: Gurevich E.V. Vliyanie tempera-tury vozdukha na zimnii stok rek (na primere basseina r. Aldan). Meteorologija i gidrologija, 2009, no. 9, pp. 92-99). DOI: 10.3103/S1068373909090088
Kravchenko V.V. Rol' naledei v formirovanii zimnego rechnogo stoka i ledyanogo pokrova rek zapadnoi chasti zony BAMa [The role of icing in the formation of winter river runoff and ice cover of rivers in the western part of the BAM zone]. Trudy Gosudarstvennogo gidro-logicheskogo institute [Transactions of the State Hydrologi-cal Institute]. 1986, vol. 312, pp. 34-84. (In Russian).
Kuusisto E., Elo A.-R. Lake and river ice variables as cli-mate indicators in Northern Europe. SIL Proceedings,
-2010, 2000, vol. 27, iss. 5, pp. 2761-2764. DOI: 10.1080/03680770.1998.11898168
Markov M.L. Prostranstvenno-vremennaya dinamika vzai-mosvyazi poverkhnostnykh i podzemnykh vod [Spatial-temporal dynamics of the relationship of surface and groundwater]. Sbornik rabot po gidrologii [Collection of works on hydrology], 2002, No 25, pp. 90-104. (In Rus-sian).
Nastavlenie gidrometeorologicheskim stantsiyam i postam. Vypusk 6. Gidrologicheskie nablyudeniya i raboty na rech-nykh stantsiyakh i postakh. Chast' tret'ya. Sostavlenie i pod-gotovka k pechati gidrologicheskogo ezhegodnika [Manual to hydrometeorological stations and posts. Issue 6. Hydro-logical observations and work at river stations and posts. Part three. Compilation and preparation for printing of the hydrological yearbook]. Leningrad, Publ. Gidrometeoiz-dat, 1958. 292 p. (In Russian).
Рrowse T.D., Вonsal B.R., Duguay C.R, Lacroix M.P. River-ice break-up/freeze-up: a review of climatic drivers, historical trends and future predictions. Annals of Glaciol-ogy, 2007, vol. 46, pp. 443-451. DOI: 10.3189/172756407782871431
Razumov V.V., Razumova N.V., Molchanov E.N. Podtoplenie zemel' v Sibirskom regione Rossii [Flooding of lands in the Siberian Region of Russia]. Georisk [Georisk], 2015, no. 4, pp. 22-35. (In Russian; abstract in English).
Shiklomanov I.A., Georgievskii V.Yu. Vliyanie antropo-gennykh izmenenii klimata na gidrologicheskii rezhim i vodnye resursy [The impact of anthropogenic climate change on the hydrological regime and water resources]. In Menzhulin G.V. (ed.) Izmeneniya klimata i ikh posledstvi-ya: Materialy spetsial'noi sessii Uchenogo soveta Tsentra mezhdunarodnogo sotrudnichestva po problemam okru-zhayushchei sredy, posvyashchennoi 80-letiyu akad. M.I. Budyko (19-20 maya 1999 g.). [Climate change and their consequences: Materials of a special session of the Scien-tific Council of the Center for International Cooperation on Environmental Issues, dedicated to the 80th anniversary of Acad. M.I. Budyko (May 19-20, 1999)]. St. Petersburg, Nauka, 2002, pp. 152-164. (In Russian).
Abstract views: 188 PDF Downloads: 0
This work is licensed under a Creative Commons Attribution 4.0 International License.