A. V. Dzyuba and G. N. Panin

Mechanism of Formation of Long-Term Climate Changes in the Past and Current Centuries

5

V. P. Gorbatenko, I. I. Ippolitov, and N. V. Podnebesnykh

Atmospheric Circulation over Western Siberia in 1976–2004

28

B. E. Peskov, A. A. Alekseeva, and S. E. Cherny

Extreme Meteorological Situations for Aviation over Donetskii Ridge on August 22, 2006

37

 A. N. Chetyrbotskii

Tasks of Large-Scale Modeling of the Evolution of Sea Ice Cover

46

G. P. Skrebkov, A. S. Lozhkin and S. N. Lozhkin

Le Chatelier Principle and Its Adaptation for Closure of Averaged Hydrodynamic Equations 

57

B. I. Gartsman and T. S. Gubareva

Rainfall Flood Forecast of Hydrograph for Rivers in the Far East

70

N. N. Morar and O. A. Chertishcheva

The Causes for Non-Monotonic Trends of pH in Snowmelt Sedimentation

81

K. A. Tavartkiladze

Variations of the Snow Cover Regime in the Second Half of the 20th Century on the Territory of Georgia

88

G. A. Arveladze and R. G. Arveladze

Agroclimatic Division of Georgia into Districts Applied to the Haselnut Crop

95
INSTRUMENTS, OBSERVATIONS, AND PROCESSING

M. P. Tentyukov

Mode and Equipment of Collection of Dry Aerosols while Exploring Aerial Technogeneous Pollution of Forest Ecosystem

99
 REVIEWS AND CONSULTATIONS

A. M. Ovanesyants, T. A. Krasilnikova, and A. B. Ivanov

Environmental Pollution and Radiation Situation on the Russian Federation Territory in February 2007

107

A. M. Kotilevskaya  

Weather on the Russian Federation Territory in February 2007

111

E. V. Vasil’ev, V. I. Luk’yanov, and M. G. Naishuller 

Anomalous Hydrometeorological Phenomena on the Russian Federation Territory in February 2007

114

A. M. Zvyagintsev, N. S. Ivanova, G. M. Kruchenitskii, and I. N. Kuznetsova

Ozone Content over the Russian Federation Territory in the First Quarter of 2007

122
 CHRONICLE Yu. S. Parshin (the 65th Birthday)   126
V. N. Stasenko (the 60th Birthday) 126
N. A. Kalinin (the 50th Birthday)  127
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