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Meteorological Conditions During Snowfall at Terra Nova Bay (Antarctica)

  • A. Pellegrini
  • A. M. Della Vedova
  • P. Grigioni
  • L. De Silvestri
Conference paper

Abstract

Changes in the precipitation rate, resulting in a snow cover on sea ice, are not easily monitored by direct observations. Gauge determinations of snowfall are strongly contamineatd by wind transport of previously deposited snow. Glaciological accumulation values are a potentially important source of precipitation data, but the requirements for broad areal coverage, the lack of annual time resolution in many regions and the uncertain impact of wind reworking are problematic. In this paper a method to identify episodes of snowfall over North Victoria Land, and particularly over Terra Nova Bay, is described.

Keywords

Automatic Weather Station Katabatic Wind Isentropic Potential Vorticity Mesoscale Cyclone Victoria Land Coast 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Mitchell JFB, Manbe S, Tokioka T and Maleshko V (1990) Equilibrium climate change. In: Houghton JT, Jenkins GJ, Enphraums JJ (eds) Climate change: the IPCC scientific assessment Cambridge University Press, Cambridge, pp 131–1720Google Scholar
  2. 2.
    Budd WF and Smith IN (1985) The state of balance of the Antarctic ice sheet: an updated assessment 1984. In Glaciers, ice sheets and sea level: effect of a CO2 induced climatic change. Report of a workshop, Seattle, Washington, September 13–15, 1984, National Academy Press, Washington, DC, pp 172–177Google Scholar
  3. 3.
    Houghton JT, Jenkins GJ and Enphraums JJ (1990) Climate change: the IPCC scientific assessment. Cambridge (eds) University Press, CambridgeGoogle Scholar
  4. 4.
    Scientific Committee on Antarctic Research (SCAR) (1992) The role of Antarctica, in Global change. An introdution plan for a regional research programme. ICSU Press/SCARGoogle Scholar
  5. 5.
    Ledley TS (1985) Sea ice: multi-year cycles ands white ice. J geophys Res 90: 5676–5686CrossRefGoogle Scholar
  6. 6.
    Ledley TS (1991) The climatic response to meridional sea ice transport. J Clim 4Google Scholar
  7. 7.
    Bromwich DH (1991) Precipitation trends over Polar Ice Sheets from Antarctica. Proceedings of a Conference, June 11–15,1990, University of Alaska, Fairbanks, p 190Google Scholar
  8. 8.
    Peixoto JP and Oort AH (1983) The atmospheric branch of the hydrological cycle and climate. In Street Perrott A, M Beran and R Ratchiffe eds. Variations in the global water budget, D Reidel Publishing Dordrecht, pp 5–66Google Scholar
  9. 9.
    Schwerdtfeger W, (1984) Weather and Climate of the Antarctic. Developments in Atmos Sci 15, ElsevierGoogle Scholar
  10. 10.
    Bromwich DH (1988) Snowfall in high southern latitudes. Rev Geophys 26 (1): 149–168CrossRefGoogle Scholar
  11. 11.
    Bromwich DH, Carrasco JG, Liu Z and Yow Tzeng R (1993) Hemispheric atmospheric variation and oceanographic impacts associated with katabatic surges across the Ross Ice Shelf, Antarctica J Geophys Res 98 (D7): 13045–13062CrossRefGoogle Scholar
  12. 12.
    Bromwich DH and Robasky FM (1993) Recent precipitation trends over the Polar Ice Sheets. Meteorol Atmos Phys 51: 259–274CrossRefGoogle Scholar
  13. 13.
    Mather KB (1969) The pattern of surface wind flow in Antarctica. Pure Appl Geophys 75: 332–354CrossRefGoogle Scholar
  14. 14.
    Orombelli G (1989) Terra Nova Bay: a geographic overview. Memorie della società geologica Italiana. Proceedings of meeting Geosciences in Victoria Land, Antarctica, Siena, 2–3 September 1987, pp 69–75Google Scholar
  15. 15.
    Van der Veen CJ and Oerlemans J (1985) The West Antarctic Ice Sheet: the need to understand its dynamics. from Dynamics of the West Antarctic Ice Sheet, pp 1–16Google Scholar
  16. 16.
    Voskresenskii AI (1976) On moisture content in the atmosphere over Antarctica (English translation). tr AANII 327: 56–67Google Scholar
  17. 17.
    Zav’yalova IN (1987) Humidity of air in Antarctica. Climate of Antarctica. AA Balkama, Rotterdam, pp 92–101Google Scholar
  18. 18.
    Rusin NP (1961) Meteorological and radiation regime of Antarctica (English translation). Gidrometeoteoizdat, Leningrad, pp 447Google Scholar
  19. 19.
    Tauber GM (1960) Characteristics of Antarctic katabatic winds on Antarctic Meteorology, Proceedings of symposium Melbourne. Pergamon Press, Kidlington, pp 52–64Google Scholar
  20. 20.
    Carrasco JF and Bromwich DH (1993) Mesoscale cyclogenesis dynamics over the southwestern Ross Sea, Antarctica. JGR 98 (D7): 12973–12995Google Scholar
  21. 21.
    Carrasco JF and Bromwich DH (1996) Mesoscale cyclone activity near Terra Nova Bay and Byrd Glacier, Antarctica, during 1991. Global Atmos Ocean Syst 5: 43–72Google Scholar
  22. 22.
    Craig G and Cho HR (1989) Baroclinic instability and CISK as the driving mechanisms for polar lows and comma clouds. In: Polar and Arctic lows, Twitchell PF, Rasmussen EA, Davison KL (eds) A Deepak, Hampton, Vancouver, pp 131–153Google Scholar
  23. 23.
    Taljaard JJ, Van Loon H, Crutcher HL and Jenne RL (1969) Climate of the upper air: southern hemisphere, vol 1. Temperature, dewpoints and heights at selected pressure levels. Rep NAVAIR, 50–1C-55 Nay. Weather Service Command, Washington, DCGoogle Scholar
  24. 24.
    Hoskins BJ, McIntyre ME and Robertson AW (1985) On the use of and significance of isentropic potential vorticity maps. Quat J R Meteor Soc 470: 877–946CrossRefGoogle Scholar
  25. 25.
    Bromwich DH and Parish TR (1988) Mesoscale cyclone interactions with the surface windfield near Terra Nova Bay, Antarctica. Antarct United States Review Issue, pp 1–5Google Scholar
  26. 26.
    Frustaci G, Bacci G and Pellegrini A (1992) Mesoanalysis and operational weather forecast for the western Ross Sea Conference Proceedings vol 34, Italian research on Antarctic atmosphere, Colacino M, Giovannelli G, Stefanutti L ( Eds) SIF, Bologna, pp 49–64Google Scholar
  27. 27.
    Radok U(1977) Snow Drift. J Glaciol 19 81:123–139Google Scholar
  28. 28.
    Frustaci G and Pellegrini A (1995) Tropospheric and mesoscale circulation patterns related to barrier and katabatic winds at Terra Nova Bay Station, Antarctica. Paper presented at zist IUGG Conference, Boulder, Colorado July 1995Google Scholar
  29. 29.
    Zibordi G and Frezzotti M(1996) Orographic clouds in north Victoria Land from AVHRR images Polar Record 32(183):317–324Google Scholar
  30. 30.
    Caprioli R, Della Vedova AM, Gragnani R, Grigioni P, Maggi V, Serra F, Stenni B and Torcini S (1998) Stratigraphic, isotopic and chemical profiles of a firn core from Drygalski Ice Tougue and of a snow pit from Aviator Glacier (northern Victoria Land, Antarctica). Progetto di Ricerca Glaciologia e Paleoclima, Casaccia, 20–21 Giugno 1994. Terra Antarctica, submittedGoogle Scholar

Copyright information

© Springer-Verlag Italia, Milano 1999

Authors and Affiliations

  • A. Pellegrini
    • 1
  • A. M. Della Vedova
    • 2
  • P. Grigioni
    • 1
  • L. De Silvestri
    • 1
  1. 1.ENEA AMB-GEM-CLIMItaly
  2. 2.RomaItaly

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