Some specific peculiarities of climate of the eastern coast of the Adriatic Sea as well as of the next-lying hinterland on the Balkan Peninsula have been discussed, especially as to the horizontal distribution of the air-temperature shown by the isotherms.
First a short historical description of the hitherto existing investigations about this object had been given, wherein it had been settled that in all of comparatively few detailed cartographic views of the distribution of the air-temperature over the area in question, the line-shapes of the isothermes had been given in a likely too much generalised manner, within little real connection in detail with physical influence of the relievo of the earth-surface could be found.
The author gives informations about the results obtained in his recent publication treating the same matter, where some new features of the sea-level distribution of the air-temperature have been brought forward and at the same time its connection with physical conditions of the above mentioned region has been explained. A brief discussion of the ≪short-period≫ monthly and yearly mean values of temperature, obtained from a rathergreat number of stations, has been outlined. Therein the average regional deviations of the short-period means from the longrated means, as well as their average variation-intervals had been shown.
The cartographic views of the sea-level distribution of the temperature, shown by the isothermes for two characteristic months (January, July), and for the year, pointed out that an expressivelydoubled division of the distribution of temperature could be distinguished:
The former one characterised by anisothermic arrangement of the temperatures along the Adriatic coast (the isothermes rather parallel to the coast-line); the latter one over the hinterland, composed of a system of physically conditioned, partially connected or isolated territories of comparatively cold resp. warm thermal regions.
Over the southern part of the coast a fairly developed centre of warmth could be distinguished, which according to the seasonal changes variably situated, owes its existence to special thermal conditions of the much increased depth of the southern part of the Adriatic Sea, as well as to the strong influence of growing hot of the bare laid lime-stones of this stony land during the summer.
Numerical examples of the annual variation of the temperature for some characteristically situated stations and especially of theannual variations of their differences showed, how the special thermic conditions of the sea resp. of the ground had influenced the specific distribution of the warmth on the coast and over the next-lying hinterland.
Over the whole interior behind the high ridge of the mountain-chain of the Dinarasystem there could be distinguished some well developed comparatively cold areas, whose appearance, especially in winter, mostly seems to be bound on import of cold air from the North and its damming up within the valleys of the numerous riverbeds. These areas form the habitual kernels of the wintry inversions of temperature and offer a wide possibility for building of cold air-waves in the upper layer of the inversion (caused by an upper warm air-current), which could be connected with occasional appearance of the well knownbora-wind on the eastern shore of the Adriatic.
Finally the thermal circumstances of the lower layers of the sea-water in the southern deeper part of the Adriatic Sea have been discussed, which in comparation with the same layers of the Mediterranean must be identical one i.e. in either case beneath 360 m there should be found a huge and coherentisothermic layer of water with a uniform temperature of 12.8°C, in strait connexion with the analogous temperature of water prevailing in the same layer of the Atlantic Ocean of which the Mediterranean is separated by the straits of Gibraltar, whose greatest depth of the bottom does not surpass 360 m.