Meteorology and Atmospheric Physics

, Volume 58, Issue 1–4, pp 165–177 | Cite as

Interacting multi-scale wind systems within an Alpine basin, Lake Tekapo, New Zealand

  • H. A. McGowan
  • A. P. Sturman
Article
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Summary

The wind regime of the Lake Tekapo Basin is examined with reference to the interaction of multi-scale local, regional and synoptic circulations. Analysis of the historical wind direction record from Mt John identifies airflow from three principal directions to most frequently affect the study area. Both seasonal and diurnal trends in the frequency of each directional category are identified, which reflect the influence of local thermal forcings and seasonal changes in synoptic circulation on the Lake Tekapo windfield. Meteorological observations from a network of automatic weather stations and anemographs within the study area identified Lake Tekapo to generate its own circulation system, a lake/land breeze. This combines with the larger scale valley wind, which during ideal conditions continues after sunset in the upper reaches of the lake catchment. During light to moderate foehn northwesterly conditions, the combined lake breeze/valley wind system remains decoupled from the prevailing synoptic airstream. Towards evening when local thermal circulations weakened, a channelised foehn airstream often becomes dominant over the entire field area. Observations made during this investigation have a number of applied implications with respect to air pollution dispersion modelling and forecasting within alpine lake basins.

Keywords

Wind Regime Wind System Breeze Circulation Valley Wind Lake Breeze 
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. Allan, J. C., 1991: Storm induced surf zone processes and beach profile response at Lake Pukaki, South Island, New Zealand. Unpublished MSc Thesis, University of Canterbury, Christchurch, New Zealand 212pp.Google Scholar
  2. Atkinson, B. W., 1981:Meso Scale Atmospheric Circulations. London: Academic Press 495pp.Google Scholar
  3. Barry, R. G., 1992:Mountain Weather and Climate, 2nd edn. London: Routledge, 401pp.Google Scholar
  4. Carroll, J. J., Baskett, R. L., 1979: Dependence of air quality in a remote location on local and mesoscale transports: A case study.J. Appl. Meteor.,18, 474–486.CrossRefGoogle Scholar
  5. Coulter, R. L., Orgill, M., Porch, W., 1989: Tributary fluxes into Brush Creek Valley.J. Appl. Meteor.,28, 555–568.CrossRefGoogle Scholar
  6. de Lisle, J. F., 1969: The climate and weather. In: Knox, G. A. (ed.)The Natural History of Canterbury. Wellington: Read, pp. 68–76.Google Scholar
  7. Doran, J. C., Horst, T. W., Whiteman, C. D., 1990: The development and structure of slope winds in a simple valley.Bound.-Layer Meteor.,52, 41–68.CrossRefGoogle Scholar
  8. Durran, D. R., 1990: Mountain waves and downslope winds. In: Blumen, W. (ed.)Atmospheric Processes over Complex Terrain. Amer. Meteorol. Soc., Meteorol. Mono.,25, (45).Google Scholar
  9. Garr, G. E., Fitzharris, B. B., 1991: A climate classification of New Zealand based on numerical techniques.NZ. Geograph.,47, 60–71.CrossRefGoogle Scholar
  10. Gordon, N. D., 1986: The Southern Oscillation and New Zealand weather.Mon. Wea. Rev.,114, 371–387.CrossRefGoogle Scholar
  11. Hsu, S. A., 1988:Coastal Meteorology: London: Academic Press, 260pp.Google Scholar
  12. Kondo, H., 1990: A Numerical Experiment of the “Extended Sea-Breeze” over the Kanto Plain.J. Meteor. Soc. Japan,68, 419–434.Google Scholar
  13. Lamb, P. C., 1970: An investigation of the Canterbury nor-wester. Unpublished MA. Thesis, University of Canterbury, Christchurch, New Zealand. 175pp.Google Scholar
  14. Lamb, P. C., 1975: The Nor'wester's advance across the Canterbury Plains, New Zealand.NZ. J. Sci.,17, 375–379.Google Scholar
  15. McGowan, H. A., Sturman, A. P., 1993: Synoptic and local effects on the climate of the Waimate area, South Canterbury.Weath. Clim.,13, 22–33.Google Scholar
  16. McGowan, H. A., 1994: Thermal and Dynamic Influences on Alpine Dust Storms, Lake Tekapo, New Zealand. Unpublished PhD Thesis, University of Canterbury, Christchurch, New Zealand, 268pp.Google Scholar
  17. McGowan, H. A., Owens, I. F., Sturman, A. P., 1995: Thermal and dynamic characteristics of alpine lake breezes, Lake Tekapo, New Zealand.Bound-Layer Meteor. (in press).Google Scholar
  18. McKendry, I. G., Sturman, A. P., Owens, I. F., 1986: A study of interacting multiscale wind systems, Canterbury Plains, New Zealand.Meteorol. Atmos. Phys.,35, 242–252.CrossRefGoogle Scholar
  19. McKendry, I. G., Sturman, A. P., Owens, I. F., 1987: The Canterbury Plains Northeasterly.Weath. Clim.,7, 61–74.Google Scholar
  20. McKendry, I. G., Sturman, A. P., Owens, I. F., 1988: Numerical simulation of local thermal effects on the windfield of the Canterbury Plains, New Zealand.J. Geol. Geophys. (NZ).,31, 511–524.CrossRefGoogle Scholar
  21. Neff, W. D., King, C. W., 1985: Studies of Complex-Terrain Flows Using Acoustic Remote Sensors, NOAA/ERL Wave propagation laboratory report ASCOT 85-1 Boulder, CO., 131pp.Google Scholar
  22. Neff, W. D., King, C. W., 1987: Observation of complex terrain flows using acoustic sounders: Drainage flow structure and evolution.Bound.-Layer Meteor.,43, 15–41.CrossRefGoogle Scholar
  23. Oke, T. R., 1987:Boundary Layer Climates, 2nd edn. London: Routledge, 435pp.Google Scholar
  24. Sturman, A. P., Tyson, P. D., 1981: Sea breezes along the Canterbury coast in the vicinity of Christchurch, New Zealand.J. Climatol.,1, 203–219.CrossRefGoogle Scholar
  25. Sturman, A. P., 1983: Airflow regime in a small alpine valley.NZ. J. Sci.,26, 211–218.Google Scholar
  26. Sturman, A. P., 1984: Airflow in mountain valleys: case studies from Canterbury. Proceedings of the Twelfth New Zealand Geographical Society Conference. Christchurch, New Zealand, pp 71–74.Google Scholar
  27. Sturman, A. P., Trewinnard, A. C., Gorman, P. A., 1984: A study of atmospheric circulation over the South Island of New Zealand (1961–1980).Weath. Clim.,4, 53–62.Google Scholar
  28. Sturman, A. P., Fitzmonds, S. J., Holland, L. M., 1985: Local winds in the Southern Alps of New Zealand.J. Climatol.,5, 145–160.CrossRefGoogle Scholar
  29. Sturman, A. P., 1987: Thermal influences on airflow in mountainous terrain.Prog. Phys. Geog.,11, 183–206.CrossRefGoogle Scholar
  30. Stuman, A. P., 1992: Dynamic and thermal effects on surface airflow associated with southerly changes over the South Island, new Zealand.Meteorol. Atmos. Phys.,47, 229–236.CrossRefGoogle Scholar
  31. Sturman, A. P., McGowan, H. A., 1995: An assessment of boundary layer air mass characteristics associated with topographically-induced local wind systems.Bound.-Layer Meteor. (in press).Google Scholar
  32. Wakimoto, R. M., McElroy, J. L., 1986: Lidar observation of elevated pollution layers over Los Angeles.J. Climate Appl. Meteor.,25, 1583–1599.CrossRefGoogle Scholar
  33. Whiteman, C. D., 1982: Breakup of temperature inversions in deep mountain valleys: Part 1, Observations.J. Appl. Meteor.,21, 270–289.CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • H. A. McGowan
    • 1
  • A. P. Sturman
    • 1
  1. 1.Geography DepartmentUniversity of CanterburyChristchurchNew Zealand

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