I. I. Mokhov, A. V. Chernokul’skii, and A. M. Osipov

Atmospheric Centers of Action in the Northern and Southern Hemispheres: Features and Variability

5

A. V. Kislov and T. A. Matveeva

On Monsoon Features of Atmospheric Circulation over the Barents Sea

 

24

D. M. Demchev, M. Yu. Kulakov, A. P. Makshtas, I. A. Makhotina,
K. V. Fil’chuk, and I. E. Frolov

Verification of ERA-Interim and ERA5 Reanalyses Data on Surface Air Temperature in the Arctic

 

36

M. M. Trofimchuk

Entropy Index: New Opportunities in Assessing the Ecological State of Aquatic Ecosystems

 

46

M. V. Bolgov, E. A. Korobkina, N. V. Osipova, and I. A. Filippova

Estimates of Peak Flow of the Iya River during the Extreme Flood in 2019

 

53

A. N. Makhinov, A. F. Makhinova, and S. I. Levshina

Estimation of Soil Cover Loss due to Water-ice Tsunami and Water Quality in the Landslide Area in the Bureya Reservoir

 

64

M. I. Vasilevich and R. S. Vasilevich

Influence of Atmospheric Circulation on Layerwise Dynamics of Chemical Properties of Snow Cover

 

74

Yu. K. Vasil’chuk and G. V. Surkova

Verification of Isotope Ratios of Ice Wedges and Cold Season Temperature over the Recent 80 Years in the Northern Permafrost Zone of Russia

 

84

COMMUNICATIONS

V. P. Shesterkin and N. M. Shesterkina

Effect of Major Floods in the Area of Khabarovsk in 2018–2019 on Hydrochemical Features of Amur Water

 

92

M. A. Mehralipour, H. Fathian, A. R. Nikbakht Shahbazi, N. Zohrabi,
and E. Mobarak Hassan

Uncertainty Analysis of Flood Forecasting due to WRF Prediction of Precipitation and Air Temperature

 

100

WINNERS OF THE CONFERENCE OF YOUNG SCIENTISTS

A. S. Lubkov, E. N. Voskresenskaya, and O. V. Marchukova

Forecasting El Nino/La Nina and Their Types Using Neural Networks

 

111

WATER PRIZE

R. S. Pruidze and E. M. Shishkin

Robotic Unmanned Water Laboratory for Monitoring Small Natural and Artificial Reservoirs

 

122

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 August 2020

 

125

E. V. Ryazanova

Weather on the Russian Federation Territory in August 2020

 

131

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

Anomalous Hydrometeorological Phenomena on the Russian Federation Territory in August 2020

 

134

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

Ozone Content over the Russian Federation in the Third Quarter of 2020

 

140

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