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Aufeises of the Siberian permafrost zone and increase of the river channel nets
https://doi.org/10.15356/2076-6734-2014-3-69-80
Abstract
Aufeises (surface icings) formed by groundwater outflows are widespread on the territory of East Siberia and Far East. By their number, sizes, and the channel-forming role they considerably exceed the “classical” (sedimentary-metamorphic) form of glaciations. Relative coverage of territory by aufeises estimated with regard for parameters of more than 10 000 ice fields is 0.66% (50 000 km2). On rivers which lengths are shorter 500 km, the aufeis sizes depend on waterflow orders. The largest quantity of giant groundwater aufeises is formed in river valleys of 3–4 orders.
Cumulative channel-forming effect of the aufeis phenomena is expressed by a value of increase of the river channel net relative to its characteristics higher and lower an aufeis glade. This value is well-correlating with the aufeis coverage of river basins as well as with morphostructure, permafrost, and hydro-geological conditions of these territories. Increase of the net with respect to one aufeis changes from 3.5 km in mountains in south of East Siberia up to 23 km in the Verkhoyansk-Kolyma mountain area and on the Chukchi Peninsula. On the average, increase of a channel net with respect to one large groundwater aufeis amounts to 12.2 km while in areas of both continuous and discontinuous permafrost (total area F = 7.6 million km2) the total increase is estimated as 690 thousand km.
Our calculations testify extremely great role of the aufeises in transformation of river channel nets and structures of valley landscapes as a whole. It is possible to see in mountains that small and middle rivers are characterized by a system of many channels caused by the aufeis influence, and such system can exist continuously for tens km along a river course. For further understanding of regulations of formation and spreading of aufeises and the aufeis channel-forming processes future long-term investigations are needed and they should be performed with use of large-scale aerial and space surveys as well as regular observations on special aufeis sites.
About the Author
V. R. AlekseevRussian Federation
References
1. Alekseev V.R. Aufeises of Sayan-Baikal Highland. Zapiski Zabaykalskogo filial Geograficheskogo obshchestva SSSR. Transactions of the Transbaikal Branch of the USSR Geographical Society. 1976, 101: 22–87. [In Russian].
2. Alekseev V.R. Landshaftnaya indikatsiya nalednykh yavleniy. Landscape indication of aufeis phenomena. Novosibirsk: Nauka, 2005: 364 p. [In Russian].
3. Alekseev V.R. Naledevedenie: Slovar’-spravochnik. Aufeis Science. Glossary. Novosibirsk: Nauka, 2007: 434 p. [In Russian].
4. Alekseev V.R. Influence of aufeises to the river channel net. Led i Sneg. Ice and Snow. 2013, 4 (124): 95–106. [In Russian].
5. Alekseev V.R., Gienko A.Ya. Naledi plato Putorana. Aufeises at the Putorana Plateau. Irkutsk, 2002: 101 p. [In Russian].
6. Alekseev V.R., Gorin V.V., Kotov S.V. Aufeises of North Chukotka. Led i Sneg. Ice and Snow. 2011, 4 (116): 85–93. [In Russian].
7. Deikin B.N., Markov M.L. Distribution of aufeises in the Kuandy river basin (results of airvision observations). Trudy GGI. Proc. of the State Hydrological Institute, 229. Leningrad: Hydrometeoizdat, 1983: 68–83. [In Russian].
8. Dolgushin L.D., Osipova G.B. Ledniki. Glaciers. Moscow: Mysl’, 1989: 447 p. [In Russian].
9. Katalog naledey zony BAM. Aufeis inventory in the zone of Amur–Baikal rail road. Issue 1. Aufeises in the upper part of the Chara river basin. Leningrad: Hydrometeoizdat, 1980: 63 p. [In Russian].
10. Katalog naledey zony BAM. Aufeis inventory in the zone of Amur–Baikal rail road. Issue 2. Aufeises in the Muya river basin. Leningrad: Hydrometeoizdat, 1981: 84 p. [In Russian].
11. Katalog naledey zony BAM. Aufeis inventory in the zone of Amur–Baikal rail road. Issue 3. Aufeises in the upper Angara river basin. Leningrad: Hydrometeoizdat, 1982: 96 p. [In Russian].
12. Koroleva N.A. Merzlotno-ekologicheskoe kartografirovanie kriolitozony Rossii. Permafrost-ecological mapping of cryolithozone of Russia. Ph. D. Thesis. Moscow State University, 2011: 24 p. [In Russian].
13. Chalov R.S. Ruslovedenie. Teoriya, geografiya, praktika. River channel science. Theory, geography, practice. V. 2. Morphodynamics of river channels. 2011: 960 p. [In Russian].
14. Chalov S.R., Ivanov V.V. Formation of many river channels in the regions of aufeises. Dinamika i termika rek, vodokhranilishch i pribrezhnoy zony morey. Dynamics and thermal conditions of rivers, water reservoirs and see coast zone. Moscow: Institute of Water Problems, 2004. [In Russian].
15. Chernyavsckaya K.A. Distribution of aufeises in the central part of Olekma-Vitim mountain country. Vtoraya mezhdunarodnaya konferentsiya po merzlotovedeniyu. Second Intern. Conf. on Permafrost Science. Issue 5. Ground water of lithosphere. Yakutsk, 1973: 74–81. [In Russian].
16. Shesternev D.M., Verkhoturov A.G. Naledi Zabaikaliya. Aufeises of Transbaikalien. Chita, 2006: 213 p. [In Russian].
17. Shmatkov V.A., Kozlov A.A. Aufeises of the North Okhotsk Region. Geografiya i prirodnye resursy. Geography and Natural Resources. 1994, 1: 189–192. [In Russian].
18. Carey K. L. Icings Developed from Surface Water and Ground Water. Hanover, New Hampshire: Corps of Engineers. U. S. Army, Cold Regions Research and Engineering laboratory, 1973. May. 67 p.
19. French H.M. The Periglacial Environment. London and New York: Lоngman, 1976. 309 p.
20. Olszewski Antoni. Icings and geomorphological significance exemplfild from Oscar II Landand Prins Karls Forland. Acta Universitetis Nicolai Copernici. Geographia XVI. Nauki Matematyczno–Przyrodnicze. Zeszyt 51. 1982: 91–122.
Supplementary files
For citation: Alekseev V.R. Aufeises of the Siberian permafrost zone and increase of the river channel nets. Ice and Snow. 2014;54(3):69-80. https://doi.org/10.15356/2076-6734-2014-3-69-80
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