LOCAL CLIMATOLOGICAL OBSERVATION IN THE SENJ REGION, CROATIA, AND THE AJDOVŠ_??_INA REGION, SLOVENIA, FROM NOVEMBER 1972 TO JANUARY 1973
| Autor: | Masatoshi M. Yoshino, Minoru Yoshimura, Keizo Nakamura |
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| Rok vydání: | 1974 |
| Předmět: | |
| Zdroj: | Geographical Review of Japan. 47:143-154 |
| ISSN: | 2185-1719 0016-7444 |
| DOI: | 10.4157/grj.47.143 |
| Popis: | In order to make clear the local climatological characteristics of bora winds, the observations were carried out in two famous bora regions in Yugoslavia. The main re-sults obtained in the Senj region are as follows: (i) In the case of relatively weak bora, the bora wind begins gradually from the Vratnik Pass to the coast. on the other hand, in the case of strong bora, the bora begins abruptly on the whole lee side slope. (ii) The temperature decreases lesser on the foot of the slope than at the pass in the clear begin-ning of bora. (iii) When the wind velocity at the pass reaches 11-14 m/s, the wind velocity on the foot of the slope increases sharply. The wind on the foot becomes not so strong in the cases that the wind at the pass blows stronger than these wind ranges. (iv) If the vertical structure of the atmosphere is unstable, the wind is relatively weak. (v) The strongest bora region is located on the slope north of Senj. Along the coast, the bora is strong between Senj and Klenovica. The results obtained in the Ajdovscina region are: (i) The axis with strong wind runs parallel to the ridge in the case of relatively weak bora. The horizontal distance between the axis and the mountain ridge is 3-4 km. (ii) If the bora wind becomes more and more strong, a closed region with strong wind west of the Ajdovscina city experiences higher wind velocity than the axis region. (iii) In the case of the strongest bora, the axis moves leewards and accordingly, the strongest wind appears in the center of the basin. (iv) It is considered that the distribution pattern revealed by the wind-shaped trees, reported by Yoshino et al. (1973) in Climatological Notes No. 14, corresponds to the condition of the long year average, which contains the whole cases with wide ranges of wind velocity. |
| Databáze: | OpenAIRE |
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