Abstract
In the summer of 1988/89 flights were carried out in the Coorong coastal area of South Australia to investigate sea-breeze fronts. The flights yielded data sets of the structure of the fronts in the cross-frontal direction with a spatial resolution of approximately 3 m. The study is focused on the budgets of sensible and latent heat in the vicinity of the front and on frontogenesis/frontolysis processes which are closely related to budget considerations.
The frontogenesis relationships and the budgets were established on a 2 km length scale by low-pass filtering of the space series. As the wind components were measured with high accuracy, all processes which determine frontogenesis could be evaluated and are displayed in x,z-cross-sections: these are the confluence, shear and diabatic effects, all of which play a role in ∂q/∂x-, ∂q/∂z-, ∂θ/∂x- as well as ∂θ/∂z-frontogenesis. A detailed analysis is given for two different states of frontal development. The presented results shed much light on the governing physical processes in the frontal region with strong emphasis on the effects of confluence-generated updrafts, on shear instabilities causing bulges and clefts in the frontal surface as well as producing the elevated frontal head, and on processes related to differential heating and moistening.
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References
Anthes, R. A.: 1978, ‘The Height of the Planetary Boundary Layer and the Production of Circulation in a Sea Breeze Model’, J. Atmos. Sci. 35, 1231–1239.
Arritt, R. W.: 1989, ‘Numerical Modelling of the Offshore Extent of Sea Breezes’, Quart. J. R. Meteorol. Soc. 115, 547–570.
Atkinson, B. W.: 1981, Meso-scale Atmospheric Circulations, Academic Press, New York.
Clarke, R. H.: 1955, ‘Some Observations and Comments on the Sea-Breeze’, Aust. Meteorol. Mag. 11, 47–68.
Clarke, R. H.: 1983, ‘Fair Weather Nocturnal Inland Wind Surges and Atmospheric Bores: Part I Nocturnal Wind Surges’, Aust. Meteorol. Mag. 31, 133–145.
Clarke, R. H.: 1984, ‘Colliding Sea-Breezes and the Creation of Internal Atmospheric Bore Waves: Two-Dimensional Numerical Studies’, Aust. Meteorol. Mag. 32, 207–226.
Clarke, R. H.: 1989, ‘Sea-Breezes and Waves: The “Kalgoorlie Sea-Breeze” and the “Goondiwindi Breeze”’, Aust. Meteorol. Mag. 37, 99–107.
Dalu, G. A. and Pielke, R. A.: 1989, ‘An Analytical Study of the Sea Breeze’, J. Atmos. Sci. 46, 1815–1825.
Droegemeier, K. K. and Wilhelmson, R. B.: 1987, ‘Numerical Simulation of Thunderstorm Outflow Dynamics. Part I: Outflow Sensitivity Experiments and Turbulence Dynamics’, J. Atmos. Sci. 44, 1180–1210.
Ewenz, C. M. and Kraus, H.: 1990, ‘An Analytical Exercise to Elucidate Quasi-Geostrophic Frontogenesis’, Meteorol. Atmos. Phys. (in press).
Findlater, J.: 1963, ‘Some Aerial Explorations of Coastal Airflow’, Meteorol. Mag. 92, 231–243.
Fisher, E. L.: 1961, ‘A Theoretical Study of the Sea Breeze’, J. Meteorol. 18, 216–233.
Garratt, J. R. and Physick, W. L.: 1986, ‘Numerical Study of Atmospheric Gravity Currents. I: Simulations and Observations of Cold Fronts’, Beitr. Phys. Atmosph. 59, 282–300.
Garratt, J. R. and Physick, W. L.: 1987, ‘Numerical Study of Atmospheric Gravity Currents. II: Evolution and External Influences’, Beitr. Phys. Atmosph. 60, 88–102.
Gentilli, J. (ed.): 1971, Climates of Australia and New Zealand. World Survey of Climatology, Vol. 13, Elsevier Amsterdam.
Gross, G.: 1986, ‘A Numerical Study of the Land and Sea Breeze Including Cloud Formation’, Beitr. Phys. Atmosph. 59, 97–114.
Haase, S. P. and Smith, R. K.: 1989, ‘The Numerical Simulation of Atmospheric Gravity Currents. Part I: Neutrally-stable Environments’, Geophys. Astrophys. Fluid Dynamics 46, 1–33.
Haase, S. P. and Smith, R. K.: 1989, ‘The Numerical Simulation of Atmospheric Gravity Currents. Part II: Environments with Stable Layers’, Geophys. Astrophys. Fluid Dynamics 46, 35–51.
Hacker, J. M. and Schwerdtfeger, P.: 1988, ‘The FIAMS Research Aircraft. System Description’, FIAMS Technical Report 8, Flinders Institute for Atmospheric and Marine Sciences, Flinders University of South Australia, Bedford Park, S.A., 5042. Available on request.
Hacker, J. M., Hartmann, J., Kraus, H., and Schwerdtfeger, P.: 1990, ‘Airborne Measurements of the Structure of Sea-breeze Fronts in Summer 1988/89’, FIAMS Research Report 47, Flinders Institute for Atmospheric and Marine Sciences, Flinders University of South Australia, Bedford Park, S.A., 5042. Available on request.
Hornickel, K.: 1942, ‘ de Danziger Seewindstudien III: Zur Aerologie des Seewindes’, Danziger Meteorologische Forschungsarbeiten. Heft 11.
Koschmieder, H.: 1936, ‘de Danziger Seewindstudien I: Nachweis und Beschreibung, sowie Beiträge zur Kinematik und Dynamik des Seewindes’, Forschungsarbeiten des Meteorologischen Instituts Danzig der Kaiser-Wilhelm-Gesellschaft zur Förderung der Wissenschaften, Heft 8.
Koschmieder, H.: 1941, ‘de Danziger Seewindstudien II: Ergebnisse gehäufter Höhenwindmessungen’, Danziger Meteorologische Forschungsarbeiten, Heft 10.
Miller, J. E.: 1948, ‘On the Concept of Frontogenesis’, J. Meteorol. 5, 169–171.
Ogawa, Y., Ohara, T., Wakamatsu, S., Diosey, P. G., and Uno, I.: 1986, ‘Observation of Lake Breeze Penetration and Subsequent Development of the Thermal Internal Boundary Layer for the Nanticoke II Shoreline Diffusion Experiment’, Boundary-Layer Meteorol. 35, 207–230.
Pearce, R. P.: 1955, ‘The Calculation of a Sea-Breeze Circulation in Terms of the Differential Heating Across the Coastline’, Quart. J. R. Meteorol. Soc. 81, 351–381.
Physick, W. L.: 1976, ‘A Numerical Model of the Sea-Breeze Phenomenon over a Lake or Gulf’, J. Atmos. Sci. 33, 2107–2135.
Physick, W. L. and Smith, R. K.: 1985, ‘Observations and Dynamics of Sea-Breezes in Northern Australia’, Aust. Meteorol. Mag. 33, 51–63.
Reid, D. G.: 1957, ‘Evening Wind Surges in South Australia’, Aust. Meteorol. Mag. 16, 23–32.
Rotunno, R.: 1983, ‘On the Linear Theory of the Land and Sea Breeze’, J. Atmos. Sci. 40, 1999–2009.
Shapiro, M. A.: 1984, ‘Meteorological Tower Measurements of a Surface Cold Front’, Mon. Wea. Rev. 112, 1634–1639.
Simpson, J. E.: 1969, ‘A Comparison Between Laboratory and Atmospheric Density Currents’, Quart. J. R. Meteorol. Soc. 95, 758–765.
Simpson, J. E., Mansfield, D. A., and Milford, J. R.: 1977, ‘Inland Penetration of Sea-Breeze Fronts’, Quart. J. R. Meteorol. Soc. 103, 47–76.
Simpson, J. E. and Britter, R. E.: 1980, ‘A Laboratory Model of an Atmospheric Mesofront’, Quart. J. R. Meteorol. Soc. 106, 485–500.
Simpson, J. E.: 1987, Gravity Currents: In the Environment and the Laboratory, Ellis Horwood, Chichester, 244 pp.
Spyers-Duran, P. and Baumgardner, D.: 1983, ‘In Flight Estimation of the Response of Airborne Temperature Sensors’, Proceedings Fifth Symposium on Meteorological Observations and Instrumentation, April 11–15, 1983, Toronto, Canada, American Meteorological Society, Boston, Massachusetts, pp. 352–357.
Yan, H. and R. A. Anthes: 1987, ‘The Effect of Latitude on the Sea Breeze’, Mon. Wea. Rev. 115, 936–956.
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Kraus, H., Hacker, J.M. & Hartmann, J. An observational aircraft-based study of sea-breeze frontogenesis. Boundary-Layer Meteorol 53, 223–265 (1990). https://doi.org/10.1007/BF00154443
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DOI: https://doi.org/10.1007/BF00154443