Krasnodar GRES Project Volume I11 Environmental Assessment

Krasnodar GRES Project Volume I11 Environmental Assessment Krasnodar GRES Project Volume I11 Environmental Assessment

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* ends 4.1 Air 4. I. 1 Climatology 4.1.1.1 Type 4.0 BASELINE DATA The Krasnodar Territory is affected by the transformed air mass of the Atlantic and air inflow from the Mediterranean area. General atmospheric circulation is substantially affected by the proximity of the Black Sea and ridges of the Great Caucasus Mountains. Formation of the climate of the region described is affected by circulation processes of the southern zone of the moderate latitudes. The air mass affecting the climate can differ by physical properties and origination. The territory is accessible for intrusion of the cold air mass from the Arctic. The marine air mass comes from the Atlantic, with regular air intrusions from Kazakhstan. Recurrence of the continental air in the area is 60-70 % in summer and 80 % and greater in winter. The climate formation is greatly affected by the relief which causes transformation of the air mass circulation. The system of mountain ridges of the Great Caucasus, glens and depressions create complicated air circulation within the system. Mountain glen air circulation is pronounced during the warm period of the year due to thermal heterogeneity of glens and slopes. In the piedmont zone the cold air mass is checked and stationed, and atmospheric fronts are often actuated in front of orographic obstacles. The latitudinal circulation prevails all-year round. Winter atmospheric circulation is determined by interaction of the Black Sea depression and the ridge of the Asian anticyclone and characterized by frequent alteration of colds and thaws, drizzles and icing phenomena. During inflows of cold the absolute minimum temperature can go as low as -36OC -38OC, while maximum temperature during thaws can go as high as 18OC to 20°C. Snow fall is not observed every year. Usually, the winter begins in December and ends in February. In spring, air temperature increases quickly due to lower cyclones' activity accompanied by intensive thaws. As a rule, the spring is short, intensive, sunny; usually, it begins in March and late in April or early in May. PAGE 4-1

The summer is hot and long (it begins in May and ends in September). Absolute maximum air temperature can be as high as 40°C to 45OC. Rain showers, thunderstorms and hails are frequent; occasionally dust storms occur, but low cloudiness sunny weather prevails. The fall is also long and warm (it begins late in September and ends early in December). The first half of the fall is dry and sunny, the second half is rainy with icing phenomena, fogs and generally overcast conditions. 4.1.1.2 Annual and Monthly Radiation Balance Solar radiation and radiation balance at the Krasnodar GRES site are summarized in Table 4.1 according to the meteorological station of the town of Sochi for the areas located in the vicinity of the Krasnodar GRES site (i.e. Perepravnaya and Gubskaya) . Months I 11 Ill IV V VI VII Vlll I X X XI XI1 Year Table 4.1 Perepravnaya and Gubskaya Sites ( met/stn of Sochi) 1.5 2.3 3.7 5.2 8.2 11.0 11.7 10.9 7.4 5.0 2.5 1.4 70.8 Radiation Amount (Kcallcm2) Radiation Direct Dispersed Total Balance ( Kcal/cm2) 1.7 2.5 3.6 4.9 6.2 6.1 6.1 5.1 3.9 3.3 2.2 1.6 47.2 3.2 4.8 7.3 10.1 14.4 17.1 17.8 16.0 11.3 8.3 4.7 3 .O 1 18.0 0.4 0.8 3.2 4.9 7.6 9.9 10.3 8.2 5.1 2.8 0.8 0.1 54.1 Duration of Solar Shining (Hours) 84 98 128 158 223 283 313 305 252 1 94 121 94 2253 PAGE 4-2

The summer is hot and long (it begins in May and ends in September). Absolute<br />

maximum air temperature can be as high as 40°C to 45OC. Rain showers,<br />

thunderstorms and hails are frequent; occasionally dust storms occur, but low<br />

cloudiness sunny weather prevails.<br />

The fall is also long and warm (it begins late in September and ends early in<br />

December). The first half of the fall is dry and sunny, the second half is rainy with<br />

icing phenomena, fogs and generally overcast conditions.<br />

4.1.1.2 Annual and Monthly Radiation Balance<br />

Solar radiation and radiation balance at the <strong>Krasnodar</strong> <strong>GRES</strong> site are summarized in<br />

Table 4.1 according to the meteorological station of the town of Sochi for the<br />

areas located in the vicinity of the <strong>Krasnodar</strong> <strong>GRES</strong> site (i.e. Perepravnaya and<br />

Gubskaya) .<br />

Months<br />

I<br />

11<br />

Ill<br />

IV<br />

V<br />

VI<br />

VII<br />

Vlll<br />

I X<br />

X<br />

XI<br />

XI1<br />

Year<br />

Table 4.1 Perepravnaya and Gubskaya Sites ( met/stn of Sochi)<br />

1.5<br />

2.3<br />

3.7<br />

5.2<br />

8.2<br />

11.0<br />

11.7<br />

10.9<br />

7.4<br />

5.0<br />

2.5<br />

1.4<br />

70.8<br />

Radiation Amount (Kcallcm2) Radiation<br />

Direct Dispersed Total Balance<br />

( Kcal/cm2)<br />

1.7<br />

2.5<br />

3.6<br />

4.9<br />

6.2<br />

6.1<br />

6.1<br />

5.1<br />

3.9<br />

3.3<br />

2.2<br />

1.6<br />

47.2<br />

3.2<br />

4.8<br />

7.3<br />

10.1<br />

14.4<br />

17.1<br />

17.8<br />

16.0<br />

11.3<br />

8.3<br />

4.7<br />

3 .O<br />

1 18.0<br />

0.4<br />

0.8<br />

3.2<br />

4.9<br />

7.6<br />

9.9<br />

10.3<br />

8.2<br />

5.1<br />

2.8<br />

0.8<br />

0.1<br />

54.1<br />

Duration<br />

of Solar<br />

Shining<br />

(Hours)<br />

84<br />

98<br />

128<br />

158<br />

223<br />

283<br />

313<br />

305<br />

252<br />

1 94<br />

121<br />

94<br />

2253<br />

PAGE 4-2

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