ISSN 2073-3402 (Print)

List of issues > Series «Earth Sciences». 2018. Vol. 23

Structural and Hydrographic Approach to the Definition Extreme High Flow

I. Y. Amosova, E. A. Ilicheva
The river network is considered as a static and dynamic model. Attention is paid to natural conditions, morphometric characteristics of the basin and channel network, which influence the formation of maximum runoff. Calculations of the maximum possible runoff were carried out using a dynamic model of the channel network, constructed using the digital relief model (DEM). To determine the fundamental patterns of the structure of river systems, based on the treatment of SRTM materials, structural and hydrographic characteristics were calculated in detail for the entire water-erosion network. The study is aimed at determining the specific characteristics and composition of the channel network and identifying new indicator capabilities for assessing runoff and the occurrence of dangerous hydrological phenomena. A comparative analysis of the obtained parameters on topographic maps and automated processing showed the importance of the scale used (topographic maps or space images) to study the structure of the water-erosion or river network for various structural hydrographic tasks. The use of modern geoinformation methods makes it possible to determine the total erosion cut and the current volume of rocks that are indicators of the hydrological regime. The indicative properties inherent in the structure of the channel network are promising to be used both for the development of flow scenarios (as much as possible), and for a retrospective assessment of the stage of development of the river system.
For citation:
Amosova I.Y., Ilicheva E.A. Structural and Hydrographic Approach to the Definition Extreme High Flow. The Bulletin of Irkutsk State University. Series Earth Sciences, 2018, vol. 23, pp. 17-27. https://doi.org/10.26516/2073-3402.2018.23.17. (in Russian)
structural hydrography, entropy characteristics, extreme possible (maximum) runoff, hydromorphological coefficient

Alekseev N.A. Stikhiinye yavleniya v prirode: proyavlenie, effektivnost zashchity [Natural Phenomena in Nature: the Manifestation, the Effectiveness of Protection]. Mosсow, Myisl Publ., 1988, 254 p. (in Russian)

Afanasiev A.N. Vodnye resursy i vodnyi balans basseina ozera Baikal [Water Resources and Water Balance of the Lake Baikal Basin]. Novosibirsk, Nauka Publ., 1976, 238 p. (in Russian)

Korytnyi L.M. (ed.). Gidroklimaticheskie issledovaniya Baikalskoi prirodnoi territorii [Hydroclimatic studies of the Baikal natural territory]. Novosibirsk, GEO Publ., 2013, 186 p. (in Russian)

Kichigina N.V. Navodneniya i maksimalnyi stok yuga Vostochnoi Sibiri: geograficheskii i statisticheskii analiz. Avtoref. dis. … kand. geogr. nauk [Floods and the Maximum run-off of the South of Eastern Siberia: Geographical and Statistical Analysis. Cand. sci. diss. abstr.]. Irkutsk, 2001, 27 p. (in Russian)

Korytnyj L.M. Gidrograficheskie kharakteristiki stroeniya rechnykh sistem Verkhnego Eniseya [Hydrographical characteristics of the structure of the river systems of the Upper Yenisei]. Klimat i vody Sibiri [Climate and Waters of Siberia]. Novosibirsk, Nauka Publ., 1980, pp. 160-175. (in Russian)

Resursy poverkhnostnykh vod SSSR [Resources of surface waters of the USSR]. Vol. 16, Issue 3. Leningrad, Gidrometeoizdat Publ., 1973, 400 p. (in Russian)

Garcman B.I. et al. Rechnye sistemy Dalnego Vostoka Rossii: chetvert veka issledovanii [River Systems of the Russian Far East: a Quarter Century of Research]. Vladivostok, Dalnauka Publ., 2015, 492 p. (in Russian)

Full text (russian)