Sastruga

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-9213-9_619-1

Definition

Meter-scale longitudinal snow feature produced by strong winds.

Category

A type of snow feature.

Plural

Sastrugi (Russian); variation, zastruga; synonym, skavler

Description

Sastrugi are irregular, wavelike, or domical ridges or grooves (Doumani 1967), which align parallel with the prevailing wind direction (Fig. 1). Similar to other erosional features and unlike depositional features, their steep face is on the windward side (Daffern 2009) and may be overhanging, forming a snow cornice (Averianov 1969, p. 28). Sastrugi fields – e.g., ridges separated by grooves – can produce a terrain of extreme surface roughness (Benson 1971). Sets of sastrugi of different orientations can form a network of ridges (Warren et al. 1998).

Keywords

Undercut Domical 
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References

  1. Alley RB (1989) Concerning the deposition and diagenesis of strata in polar firn. J Glaciol 34:283–290Google Scholar
  2. Averianov VG (ed) (1969) Collected papers of soviet antarctic expeditions. Israel Program for Scientific TranslationsGoogle Scholar
  3. Benson CS (1971) Stratigraphic studies in the snow at byrd station, Antarctica, compared with similar studies in Greenland. In: Crary AP (ed) Antarctic snow and ice studies II. American Geophysical Union, Washington, DCGoogle Scholar
  4. Blackwelder E (1930) Yardang and Zastruga. Science 72(1868):396–397CrossRefGoogle Scholar
  5. Bromwich DH, Parish TR, Zorman CA (1990) The confluence zone of the intense katabatic winds at Terra Nova Bay, Antarctica, as derived from airborne sastrugi surveys and mesoscale numerical modeling. J Geophys Res 95(D5):5495–5509CrossRefGoogle Scholar
  6. Crary AP (1963) Results of United States traverse in East Antarctica. American Geographical Society, New York, p 144, 1958–1961, I.G.Y. Glaciol. Rep. 7, World Data Center,4Google Scholar
  7. Daffern T (2009) Backcountry avalanche safety: skiers, climbers, boarders and snowshoers. Rocky Mountain Books, Surrey/CusterGoogle Scholar
  8. Doumani GA (1967) Surface structures in snow. Proceedings of the Conference on Physics of Snow and Ice 1(2). The Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan. pp 1119–1136Google Scholar
  9. Gow AJ (1965) On the accumulation and seasonal stratification of snow at the South Pole. J Glaciol 5:467–477Google Scholar
  10. Howard AD (2000) The role of eolian processes in forming surface features of the Martian polar layered deposits. Icarus 144:267–288. doi:10.1006/icar.1999.6305CrossRefGoogle Scholar
  11. Kotlyakov VM (1966) The snow cover of the Antarctic and its role in the present-day glaciation of the continent. Israel Program for Scientific Translations, JerusalemGoogle Scholar
  12. Lister H, Pratt G (1959) Geophysical investigations of the Commonwealth Trans-Antarctic Expedition. Geogr J 125(3–4):343–354CrossRefGoogle Scholar
  13. Moss R (1938) The physics of an ice-cap. Geogr J 92(3):211–227CrossRefGoogle Scholar
  14. Oura H (1967) Studies on blowing snow I. Proceedings of the Conference on Physics of Snow and Ice 1(2). The Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan. pp 1085–1097Google Scholar
  15. Rodriguez JAP, Tanaka KL, Langevin Y, Bourke M, Kargel J, Christensen P, Sasaki S (2007) Recent aeolian erosion and deposition in the north polar plateau of Mars. Mars 3:29–41. doi:10.1555/mars.2007.0003CrossRefGoogle Scholar
  16. Scambos T, Haran T, Fahnestock M, Painter T, Bohlander J (2007) MODIS-based Mosaic of Antarctica (MOA) data sets: continent-wide surface morphology and snow grain size. Remote Sens Environ 111(2):242–257, http://dx.doi.org/10.1016/j.rse.2006.12.020CrossRefGoogle Scholar
  17. Swithinbank C (1957) The morphology of ice shelves of western Dronning Maud Land. Norwegian -British-Swedish Antarctic Expedition 1949–52, Oslo, Scientific results 3, AGoogle Scholar
  18. von Wrangel F (1839) Reise entlang der Nordküste von Sibirien und auf dem Eismeer in den Jahren 1820 bis 1824. Verlag der Voss’schen Buchhandlung, Berlin, pp 311–312Google Scholar
  19. Ward S (2004) Sastrugi. In: Goudie A (ed) Encyclopedia of geomorphology. Routledge, LondonGoogle Scholar
  20. Warren SG, Brandt RE, O’Rave Hinton P (1998) Effect of surface roughness on bidirectional reflectance of Antarctic snow. J Geophys Res 103(E11):25789–25807. doi:10.1029/98JE01898#Link to external resource: 10.1029/98JE01898CrossRefGoogle Scholar
  21. Watanabe O (1978) Distribution of surface features of snow cover in Mizuho Plateau. In: Ishida T (ed) Glaciological studies in Mizuho Plateau, East Antarctica, 1969–1975. National Institute of Polar Research, Tokyo, pp 44–62Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Planetary Science Research GroupEötvös Loránd University, Institute of Geography and Earth SciencesBudapestHungary