Abstract
The local wind bora is a well-known phenomenon on the eastern coast of the Adriatic Sea, where steep mountains, the Dinaric Alps, closely follow the coast. In a relatively undisturbed atmosphere the coastal thermal effect and the dynamic effect of orography give rise to a cool downslope land breeze, theborino, which develops at night-time, and particularly in the winter season, when the land-sea temperature contrast is large. The causes ofcold bora, with strong and gusty winds, are then attributed to the synoptic scale effects upon the local flow intensification and inland cold air supply. Since the interaction processes on various scale motions are involved in a sequence of bora spells, it is shown how the large scale anomalies may subsequently change the mesoscale characteristics of the bora environment and eventually make the bora appear as a relatively warm wind.
Similar content being viewed by others
References
Bergeron, T. (1967).Mesometeorological Studies of Precipitation, II. Annual Technical Report 1966/67, Contract No. DA-91-591-EUC-4135, Meteorol. Inst., Uppsala.
Čadež, M. (1964).Vreme u Jugoslaviji (Weather in Yugoslavia), Rasprave,4 (Meteor. Inst., Univ. of Belgrade), 1–83.
Čadež, M. (1976).Some Observations on Bora and Foehn Winds. InLocal Wind Bora (ed. Yoshino), pp. 193–202.
Defant, F. (1951).Local Winds. InCompendium of Meteorology (AMS, Boston), pp. 655–672.
Joint Organizing Committee (1980).The Alpine Experiment (ALPEX). Experiment Design Proposal. Joint Planning Staff for GARP, WMO, Geneva, Switzerland, 450 pp.
Jurčec, V. (1978).A Case Study of Frontal Development in the Alps Region. Proceedings of the 15 Inter. Meeting on Alpine Meteorology. Veröff. Schweiz Meteor. Zentralans.,41, 196–199.
Klemp, J. B., andLilly D. K. (1975).The Dynamics of Wave Induced Downslope Winds, J. Atmos. Sci.36, 1498–1529.
Lukšić, I. (1969).Interesantan slučaj bure u Senju 9. XII 1968 (Vijesti, Hydromet. Inst., Zagreb), pp. 3–4.
Lukšić, I. (1972).Tipovi strujanja zraka iznad Zagreba za vrijeme bure na Sjevernom Jadranu (Upper Level Flow Types at Zagreb During the Bora in the Northern Adriatic). Papers from VII Climatological Conference (Fed. Hydromet. Inst. Belgrade), pp. 111–129.
Lukšić, I. (1975).Bura u Senju, Senjski Zbornik, Senj6, 467–494.
Makjanić, B. (1970).On the Diurnal Variation of the Bora Wind Speed, Rad. Yugoslav Academy of Sciences and Arts, Zagreb,349, 33–92.
Makjanić, B. (1976).A hort Account of the Climate of Town Senj. InLocal Wind Bora (ed. Yoshino), pp. 145–152.
Makjanić, B. (1978).Bura, Jugo, Etezija (Bora, Scirocco, Ethesian) (Fed. Hydromet. Inst., Belgrade), 73 pp.
Peltier, W. R., andClark, T. L. (1979).The Evolution and Stability of Finite Amplitude Mountain Waves — II: Surface Drag and Severe Downslope Windstorms, J. Atmos. Sci.36, 1498–1529.
Petkovšek, Z., andPaladiž, B. (1976).Bora in the Slovenian Coastal Region. InLocal Wind Bora (ed. Yoshino), pp. 135–134.
Volarić, B. (1980).Zagreb je u studenom 1978 imao samo 14 sunčanih sati (In November 1978 only 14 hours of Insolation in Zagreb). Priroda,68 (Zagreb), pp. 55–58.
Yoshino, M. M. (1976).Local Wind Bora (Univ. Tokyo Press), 289 pp.
Yoshino, M. M., Yoshino, M. T., Yoshimura, M., Mitsui, K., Urushibara, K., Ueda, S., Owada, M., andNakamura, K. (1976).Bora Regions as Revealed by Wind-shaped Trees on the Adriatic Coast. InLocal Wind Bora (ed. Yoshino), pp. 59–71.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jurčec, V. On mesoscale characteristics of bora conditions in Yugoslavia. PAGEOPH 119, 640–657 (1980). https://doi.org/10.1007/BF00878165
Issue Date:
DOI: https://doi.org/10.1007/BF00878165