N. V. Vakulenko, N. M. Datsenko, and D. M. Sonechkin

Changes in General Atmospheric Circulation in the Northern Hemisphere in 1998–2018

5

D. Yu. Gushchina, M. V. Kalinovskaya, and T. A. Matveeva

Effects of the Pacific Decadal Oscillation on the Characteristics of Two Types of El Nino under Possible Climate Change

 

14

A. B. Polonskii and A. M. Novikova

Interdecadal Variability of the Black Sea Cold Intermediate Layer and Its Causes

 

29

D. A. Yarovaya, V. V. Efimov, V. S. Barabanov, and А. А. Mizyuk

Response of the Black Sea Upper Layer to the Cyclone Passage on September 25—29, 2005

 

38

E. V. Ostrovskaya, V. O. Tatarnikov, and N. V. Popova

Influence of the Transport of Organochlorine Pesticides with the Flow of the Volga River on Contamination of Its Estuary

 

53

Yu. A. Dovgalyuk, N. E. Veremei, A. A. Sin’kevich, Yu. P. Mikhailovskii, M. L. Toropova, V. B. Popov, J. Lu, and J. Yang

Investigation of Electrification Mechanisms and Relationship between the Electric Discharge Frequency and Radar Characteristics of the Thunderstorm in China

 

63

COMMUNICATIONS

D. V. Ionov and А. V. Poberovskii

Variability of Nitrogen Oxides in the Atmospheric Surface Layer near St. Petersburg

 

73

E. Sh. Elizbarashvili, M. E. Elizbarashvili, and Sh. E. Elizbarashvili

Investigation of the Frequency of Occurrence of the Most Dangerous Weather Events for Georgia

 

82

I. A. Zhabin, N. B. Luk’yanova, and V. A. Dubina

Impact of Tidal Mixing and River Runoff on Thermohaline Water Structure near the Shantar Islands (the Sea of Okhotsk)

 

90

INSTRUMENTS, OBSERVATIONS, AND PROCESSING

D. A. Kozhevnikov

Effects of Meteorological Conditions on the Results of Aerial Radiation Reconnaissance in the Arctic

 

100

O. M. Andreev and D. V. Drabenko

Preparation of Initial Data for Thermodynamic Modeling of Arctic Ice

 

112

REVIEWS AND CONSULTATIONS

E. S. Dmitrevskaya, T. A. Krasil’nikova, and O. A. Markova

Environmental Pollution and Radiation Situation on the Russian Federation Territory in July 2020

 

121

L. N. Parshina

Weather on the Russian Federation Territory in July 2020

 

129

T. V. Berezhnaya, A. D. Golubev, and L. N. Parshina

Anomalous Hydrometeorological Phenomena on the Russian Federation Territory in July 2020

 

134

CHRONICLE

In Memory of O. D. Sirotenko (1940–2012)

144

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