Contents

Izvestiya, Atmospheric and Oceanic Physics

Vol. 59, No. 6, 2023

On Turbulent Helicity in the Surface Layer of the Atmosphere

O. A. Solenaya, E. A. Shishov, O. G. Chkhetiani, G. V. Azizyan and V. M. Koprov p. 595  abstract

Comparison of Cluster Analysis Methods for Identifying Weather Regimes in the Euro-Atlantic Region for Winter and Summer Seasons

B. A. Babanov, V. A. Semenov and I. I. Mokhov p. 605  abstract

Response of the Tropospheric Dynamics to Extreme States of the Stratospheric Polar Vortex during ENSO Phases in Idealized Model Experiments

Y. A. Zyulyaeva, D. A. Sobaeva and S. K. Gulev p. 624  abstract

Seasonal Changes in Stratospheric Circulation and Interactions between the Troposphere and the Stratosphere

Y. P. Perevedentsev, N. V. Ismagilov, N. A. Mirsaeva, V. V. Guryanov, A. A. Nikolaev and K. M. Shantalinsky p. 636  abstract

Atmospheric Planetary Waves at Ionospheric Heights Measured at the Moscow Observatory (IZMIRAN)

S. A. Riabova and S. L. Shalimov p. 647  abstract

Anomalous Selective Absorption of Smoke Aerosol during Forest Fires in Alaska in July–August 2019

G. I. Gorchakov, V. M. Kopeikin, R. A. Gushchin, A. V. Karpov, E. G. Semoutnikova, O. I. Datsenko and T. Ya. Ponomareva p. 655  abstract

Conditional Background Level of Aerosol Pollution in Surface Air in Moscow and One of its Suburbs: Seasonal Variations

D. P. Gubanova, A. A. Vinogradova, E. A. Lezina, M. A. Iordanskii and A. A. Isakov p. 667  abstract

Estimation of Spatial Distribution of Potential Sources of Carbonaceous Aerosol from Local Measurements near St. Petersburg

S. S. Vlasenko, O. A. Ivanova, T. I. Ryshkevich and E. F. Mikhailov p. 685  abstract

Explosive Growth of Unsymmetric Perturbations in a Flow with a Vertical Shear

M. V. Kalashnik p. 695  abstract

Contributions of Nonlinear Spectral Components to the Probability Distribution of Rogue Waves Based on the Results of Numerical Simulation of the Euler Equations

A. V. Slunyaev p. 701  abstract

Variational Data Assimilation for the Sea Thermodynamics Model and Sensitivity of Marine Characteristics to Observation Errors

V. P. Shutyaev and E. I. Parmuzin p. 722  abstract

Structure and Characteristics of Internal Wave Field in an Ocean Frontal Region East of Malta in Mediterranean

I. P. Chunchuzov, O. M. Johannessen and O. E. Popov p. 731  abstract

On the Conditions of the Emergence of a Periodic Mode of Saltating Flow

E. A. Malinovskaya, G. I. Gorchakov, A. V. Karpov, L. O. Maksimenkov and O. I. Datsenko p. 749  abstract