Ukraine, the land and its people

by Stepan Rudnytskyi

We now come to the second group of climatic phenomena, pressure and wind conditions. The Ukraine may, in this respect, be divided into two great regions. The line of high pressure which separates these parts, called by Voiekoff the great axis of Europe, extends from the bend of the Volga, near Tsaritsin, over the porohi section of the Dnieper at Katerinoslav to Kishinev. North of this line, west winds prevail, bringing Atlantic air into Northern Ukraine. In the south, east winds prevail, bearing the influences of the Asiatic steppe climate. This wind divide is most distinct in winter. In the northern part of the Ukraine we find chiefly west and southwest winds, which mitigate the frosts and cause precipitations of rainfall; in the southern part dry, cold east winds prevail, increasing the cold. Sometimes the east wind increases to a snowstorm (metelitzia, fuga) which whirls up terrible masses of [[93]]snow, filling the air with snowflakes until absolutely nothing can be seen, and causes terrific destruction. Herds of a thousand head fall victim to its icy breath, even in the steppes of Crimea, and woe to the traveler who is caught in a snowstorm in the steppe.

In November and December, in Southern Ukraine, moist, warm south winds frequently come up from the Pontus. But the absolute balance is on the side of the freezing east winds, to which is to be ascribed the severe winter climate of Southern Ukraine. The northern half of the Ukraine as a rule, is seldom reached by the east winds, the northwestern corner very seldom. Their occasional appearance is accompanied by heavy frosts with fair weather.

In the spring, east and south winds blow, especially over Southern Ukraine. They often change to heavy sand-storms (sukhovi) very harmful to the crops, which carry clouds of sand, with which they form miniature dunes as high as 30 cm. The east and south winds, at such times, penetrate even into Northern Ukraine, altho with the exception of the northwest corner.

In the summer, on the other hand, the west, northwest, and southwest winds hold a decided balance over the east winds, even in Southern Ukraine. They bring moist Atlantic air and rain into the entire land and mitigate the heat. The occasional east winds increase the heat and bring periods of drought, but usually not until August, when they are rather frequent. In September all the winds are weak thruout the Ukraine, with high pressure. That is why the fall is so beautiful too. Then, in October and November, follows the gradual transition to the winter wind conditions.

The third group of atmospheric phenomena, humidity and precipitation, possesses the same great uniformity in Ukrainian territory as the other two elements of the climate. [[94]]The humidity of the air in the Ukraine is in general slight. It is greatest in the forest-covered partly swampy West and Northwest. Toward the southeast the humidity in the Ukraine constantly decreases. Fogs appear seldom and are only light, so that the antithesis to Western and Central Europe, as well as Russia, is striking. The light night and morning fogs which appear, especially in the latter part of summer and in the fall, only contribute to the beautification of the landscape, by flooding the depressions of land like a sea. Cloud-formation is much slighter in the Ukraine than in Western or Central Europe, or in Russia proper, the dreary Muscovite country. The greatest number of clouded days occurs in the western and northwestern part of the Ukraine; toward the southeast and east the number of such days dwindles continuously. The least amount of cloudy weather occurs in the month of August. In September and October the increase is very slight. November and December are much cloudier and January is most cloudy all over the Ukraine. After that the cloudy weather lessens considerably at first, then slowly, until August.

The atmospheric precipitations in the Ukraine are in general insignificant, except in the Carpathian and Caucasus regions. The Ukraine has less rainfall than Central or Western Europe. The Atlantic Ocean, the most important source of the precipitations in Europe, lies far distant, and the cyclonal systems on their way east drop their collected moisture upon Western and Central Europe. For the Ukraine, and particularly for the eastern part of it, there is, therefore, very little left. In this connection the Black Sea has only a local significance, and the evaporation of water from the rivers, lakes and swamps, from the plants and the ground, is hardly worth considering, except as it happens in the summer.

The great amounts of precipitation are to be found in [[95]]the mountains of the Ukraine, where rising currents of air help along the condensation of the water vapor. Even in the Low Beskid the precipitation exceeds 1000 mm. (Yasliska 1170 mm.), in the Gorgani and Chornohora we find in large areas, especially on the southern slope, a precipitation of over 1200 mm., in a few places 1400 mm. (Kobiletzka Polana 1377 mm., Bradula 1419 mm.). The amount of precipitation is still large in the entire Pidhirye, but at only a short distance it decreases considerably. Lemberg has only 735 mm. of rainfall, the southern part of the Rostoche as much as 900 mm. in places, since the western edges act like chains of mountains to the west winds. But Czernowitz, near as it is, has only 619 mm. and the Podolia on the Dniester still less. The Khotin lying in the yar of this river has only 300 mm., which best illustrates the significance of local conditions. At a greater distance from the curve of the Carpathians the amount of precipitation shows a slow but regular decrease toward the southeast. Only in the northern part of the Rostoche and the northwestern part of Podolia does the amount of precipitation attain 600 mm., while further toward the south and east a wide zone stretches out with only 500–600 mm. (Pinsk 581 mm., Kiev 534 mm., Uman 546 mm., Poltava 532 mm.). Another wide zone, which extends from the mouth of the Dniester to the bend of the Don, has a precipitation of between 400 and 500 mm. (Kharkiv 465 mm., Katerinoslav 475 mm., Kishinev 471 mm., Yelisavet 444 mm., Odessa 408 mm.). The next narrow zone of the Pontian and Crimean steppe has a precipitation of less than 400 mm. (Mikolaiv 360 mm., Sevastopol 386 mm., Luhan 379 mm.), a corner of Crimea on the peninsula of Tarkhankut has even barely more than 200 mm.

The Yaila Mountain Range is too small to have any marked influence on the increase in the amount of precipitation. Yalta has only 508 mm. precipitation. On the [[96]]other hand, the influence of the Caucasus is very great. The sub-Caucasus Kuban region, to be sure, has only 400–500 mm. precipitation, Stavropol 720 mm., Novorossysk 691 mm. However, the amount of precipitation on the southwestern side of the Caucasus Mountains increases uncommonly. At the borders of Ukrainian territory, Sochi has not less than 2071 mm.

From this account we see clearly enough that, in comparison with Central and Western Europe, the Ukraine is rather poor in rainfall, especially in the southeast. But the distribution of the precipitations among the seasons is so favorable that most of them fall at the time they are most needed, namely, in the early part of summer. The entire Ukraine lies within the area of the summer rains, only the narrow strip of the south coast of Crimea and the Caucasus are within the area of the winter rains.

The reason of the preponderance of the summer rains lies in the western and northwestern Atlantic winds, which, in that season, have easy access far into the southeastern part of the Ukraine. These winds bring so much moisture into the Ukraine that almost two-thirds of the annual rainfall belongs to May, June and July. The month with the greatest amount of precipitation for the entire Ukraine is June. Only the Polissye, Northwestern Volhynia and the western part of the Kiev territory show the heaviest precipitation in July, since, in these regions of forests and swamps, evaporation is heaviest at this time of greatest heat.