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Atmospheric and Oceanic Optics
Journal Prestige (SJR): 0.39

Citation Impact (citeScore): 1
Number of Followers: 8

Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1024-8560 - ISSN (Online) 2070-0393
Published by Springer-Verlag

[2468 journals]

Erratum to: An Exact Analytical Calculation of the Wavefront Structure
Function for the Case of Kolmogorov Atmospheric Turbulence
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  Abstract: An Erratum to this paper has been published: https://doi.org/10.1134/S1024856025010014
  PubDate: 2025-05-21
Dynamics of the Stratospheric Polar Vortex in 2022/2023 by Vortex
Delineation Methods Using Geopotential and Potential Vorticity
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  Abstract: Two methods for stratospheric polar vortex delineation are compared by the main vortex characteristics they provide: vortex area, average wind speed at the edge, mean temperature inside the vortex. One of the ...
  PubDate: 2025-04-29
Estimates of the Frequency of Synoptic Variations in Aerosol
Characteristics in the Arctic Atmosphere and the Contribution of Various
Pollutants to Anomalously High Aerosol Concentrations
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  Abstract: The periodicity of synoptic-scale variations in aerosol characteristics in the atmosphere of Eurasian sector of the Arctic Ocean is analyzed on the basic of long-term measurements. Statistically significant ma...
  PubDate: 2025-04-29
Remote Spectrometric Measurements of Atmospheric Nitrogen Dioxide near
Urban Thermal Power Plants
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  Abstract: The operation of thermal power plants (TPP) is accompanied by the emission of various pollutants into the atmosphere, including nitrogen oxides. This paper presents the results of spectrometric measurements of...
  PubDate: 2025-04-29
Turbulent Lidar Measurement Technique and Comparison with Ground-Based
Observations
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  Abstract: The history of the creation of a turbulent lidar at V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, began 11 years ago, when a bulky laboratory setup enabled experiment...
  PubDate: 2025-04-29
Lidar Studies of Wave Structures and Wind Turbulence in the Stable
Atmospheric Boundary Layer
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  Abstract: Abstract The study of internal gravity waves (IGWs) generated in the atmospheric boundary layer (ABL) under stable temperature stratification and the mechanisms of interaction between IGWs and wind turbulence is important for understanding dynamic processes in the atmosphere and improving algorithms for ABL numerical modeling and weather forecasts. This work is devoted to the study of wave structures and turbulence in a stable ABL with the use of the data of our experiments conducted in 2023. In these experiments, two pulsed coherent Doppler lidars (PCDLs) horizontally spaced 3250 m apart were simultaneously involved. The analysis of the experimental results has shown that from the measurements of two PCDLs it is possible to determine the time shift of the moments at which the leading edge of an atmospheric wave passes through the lidar locations; using this shift, one can determine the propagation velocity of the atmospheric wave. For the first time in our lidar experiments, the case of atmospheric wave propagation in the layer at heights from 200 m to 1 km with a maximum amplitude of quasi-harmonic oscillations of the vertical component of the wind velocity vector of about 4 m/s (at a height of 400 m) has been revealed. It has been found that due to the transfer of energy from an atmospheric wave to small-scale wind fluctuations, it is possible to increase the turbulent energy dissipation rate by four orders of magnitude in just a few tens of minutes.
  PubDate: 2025-04-01
Optimization of THz Radiation Generation by Air Laser Profiling using
Genetic Algorithm
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  Abstract: Abstract The paper investigates the generation of terahertz (THz) radiation during filamentation. A possibility of increasing the generation efficiency THz radiation in a single-color filamentation mode excited in air by laser beams with necklace amplitude profile is considered. A stationary model of THz radiation generation is suggested. It enables studying the dependence of conversion efficiency on the amplitude profiling of pump beams. It is shown that the partitioning of radiation over subapertures allows controlling the energy of THz radiation. The optimal class of gorget beams is found by a genetic algorithm. The results of this work are important for the development of technologies for remote generation of THz radiation in gaseous media.
  PubDate: 2025-04-01
Dynamics of Distribution of Aerosol Fractions in the Surface Air of the
Boreal Zone of Western Siberia (Based on Observations at the Fonovaya
Observatory)–Part 1: Comparison of the Periods of Summer Vegetation and
Winter Dormancy of Woody Plants
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  Abstract: Abstract We present the results of comparative characterization of fractional composition of surface aerosols in the period of summer vegetation and winter dormancy of woody plants in the boreal zone of Western Siberia. The article presents statistics on the size distribution of aerosol particles at the Fonovaya Observatory of IAO SB RAS (Tomsk Region) from July 1, 2022, to June 30, 2023. The analysis of the ratios of aerosol fractions revealed a paradoxical situation, where the number concentration of aerosol particles 0.3–2.0 μm diameter turned out to be significantly higher in winter than in summer. A phenomenological model is suggested which describes this effect as a manifestation of the action of radiometric forces.
  PubDate: 2025-04-01
Spectral Composition of Temperature Turbulence for Different Surface Air
Layer Stratification Types
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  Abstract: Abstract Parameters of the spectral model of small-scale turbulence are the most important characteristics used to describe the propagation of light and sound in the atmosphere. One of the factors determining the spectral composition of turbulence is the stratification regime. The effect of surface air layer stratification on the deviations of a turbulence spectrum from the Kolmogorov–Obukhov model is studied based on the processing of time series of fluctuations in meteorological parameters recorded by acoustic weather stations. A significant correlation between the stability characteristic (Monin–Obukhov number) and the exponent of the power-law model of the spectrum of temperature fluctuations is found from the comparison of their dynamics. An empirical model of the dependence of the spectrum exponent on the stability characteristic is suggested. The model makes it possible to estimate changes in the parameters of the spectral structure of small-scale turbulence based on estimates of the magnitude and direction of turbulent heat and momentum fluxes. The dependence reflects the features of generation of temperature turbulence under different stratification of the surface air layer. Information on turbulent spectral parameters derived from stratification estimates can be further used to solve problems of optical and acoustic wave propagation and atmospheric sounding.
  PubDate: 2025-04-01
Light Backscattering by Horizontally Oriented Ice “Plate,”
“Column,” and “Hollow Column” Particles of Cirrus Clouds
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  Abstract: Abstract Cirrus clouds play an important part in the formation of our planet’s climate due to their influence on its radiation balance. Their study requires solving the problem of interpreting atmospheric laser sounding data, which is implemented differently for clouds consisting of randomly oriented ice crystals and clouds containing layers of horizontally oriented crystals. In this paper, within the framework of the physical optics method, properties of light backscattering by horizontally oriented cirrus cloud ice particles of the “plate,” “column,” and “hollow column” types are numerically simulated. The simulations are carried out for particles ranging in size from 10 to 316 µm for wavelengths of 0.532 and 1.064 μm; the complex refractive index of ice is 1.3116 + i1.48 × 10−9 and 1.3004 + i1.9 × 10−6, respectively. The solution is obtained for typical lidar tilt angles of 0°, 0.3°, 3°, and 5°. The results are of interest for developing an optical model of cirrus clouds in problems of interpreting atmospheric laser sounding data in the presence of clouds containing ice crystals of the abovementioned shapes.
  PubDate: 2025-04-01
Influence of Air Movement Structure on Microphysical Properties of the
Atmosphere over Listvyanka
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  Abstract: Abstract The relationship between sulfur dioxide (SO2) concentration and small-scale turbulence within Southern Baikal is understudied. The work studies jet streams and atmospheric turbulence affecting the surface SO2 content over Listvyanka station. The cases are considered where the surface SO2 concentration tends to increase at negative vertical turbulent specific heat fluxes. This occurs against the background of jet streams within the lower air layer and large vertical wind speed shear below the altitude of the jet stream generation. A vertical turbulent specific heat flux in the surface air layer can serve a key indicator of possible positive relationship between the surface SO2 concentration and the total kinetic energy of turbulence. The analysis has shown that SO2 concentration tends to increase at negative vertical turbulent temperature fluxes against the development of low-level jet streams. In similar situations, but with positive or near-zero temperature fluxes, SO2 concentrations usually remain at a background level.
  PubDate: 2025-04-01
Calculation of CO2-shift Coefficients of SO2 Lines: ν1 + ν3 Band
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  Abstract: Abstract— Parameters of the SO2–CO2 line profile are important to study the carbon dioxide atmospheres of terrestrial planets (Venus and Mars) and exoplanets. The carbon-dioxide shift coefficients of sulfur dioxide lines in ν1 + ν3 band are calculated at room temperature; the rotational quantum numbers J varies from 0 to 100 and Ka varies from 0 to 20. Calculations were made using a semi-empirical method, which includes a correction factor with adjustable parameters depending on the rotational quantum numbers. The calculated shift coefficients are in good agreement with few published data.
  PubDate: 2025-04-01
The Nature of Hygroscopicity of Aerosol Haze Particles over Beijing
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  Abstract: Abstract Atmospheric aerosols have a significant impact on air quality, climate, and human health. The comparison of gaseous impurity and ionic composition monitoring data in the surface atmosphere over Antwerp and Beijing showed that the hygroscopicity level of dense haze particles over Beijing in winter is determined by the depth of heterogeneous reactions of sulfate and nitrate formation. The paper discusses the dynamics and mechanisms of these nonphotochemical processes, as well as the features of their coupling in a haze-polluted atmosphere. Their rapid occurrence in particles in combination with the uptake of water vapor from the air causes abnormally high mass concentrations of aerosol and their variability during the haze period over Beijing. The results are necessary for forecasting the occurrence of dense hazes, as well as for constructing models of transport of gas and aerosol microimpurities in the atmosphere.
  PubDate: 2025-04-01
A System for Predicting Pollutant Transport in the Atmosphere
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  Abstract: Abstract A system has been developed for numerical prediction of concentrations of pollutants in the atmosphere and their transformation with the use of CHIMERE chemical transport model, which takes into account emissions from stationary and mobile sources and accidental emissions. Meteorological fields are forecasted using the regional high-resolution non-hydrostatic atmospheric model WRF-ARW. The system is fully automated and can be used as a tool for receiving operational information in the work of situation and decision-making centers in the cases of industrial, natural, and man-made accidents. The system was tested for a Russian region. The test results show its efficiency, a possibility of using it in operational and research work and in the development of scenarios of emergency situations anywhere in the Russian Federation, which can help to eliminate the consequences of accidents. The first results of atmospheric pollution calculation with the system are described and can be considered as test. To obtain statistically reliable results, it is necessary to have longer series of measurements of atmospheric pollution concentrations with higher resolution.
  PubDate: 2025-04-01
Comparison between Greenhouse Gas Fluxes Measured with the Equipment of
Yakovlev-40 Aircraft Laboratory and ZOTTO Observatory
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  Abstract: Abstract The ongoing global warming leads to the need in continuous monitoring of greenhouse gas concentrations and the magnitude of their fluxes. Gas exchange between terrestrial ecosystems and the atmosphere is mainly measured using eddy covariance, gradient, and chamber methods. This work compares greenhouse gas fluxes measured using the eddy covariance technique onboard an aircraft laboratory and with the gas analysis system and meteorological sensors at ZOTTO observatory. Instrument suites of the aircraft laboratory and the observatory are described. The comparison results showed that CO2 and CH4 fluxes measured by two different methods at the same altitudes coincide in sign, are close to each other in the value for carbon dioxide, and differ by up to 2 times for methane. The results are of interest to specialists who study greenhouse gas fluxes using the eddy covariance method.
  PubDate: 2025-04-01
Air Temperature Variance under Conditions of Temperature Inversion
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  Abstract: Abstract The effect of vertical and horizontal turbulent heat fluxes on the air temperature variance under conditions of temperature inversions of different intensity is considered. It is shown that the neglect of horizontal turbulent heat fluxes under these conditions in the existing models can lead to significant underestimation of the mixing layer height.
  PubDate: 2025-04-01
Vertical Distribution of Ozone in the Upper Troposphere–Stratosphere
according to lidar Sounding Data at the Siberian Lidar Station in 2023
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  Abstract: Abstract The paper analyzes lidar measurements of vertical ozone distribution in the lower stratosphere–upper troposphere at the Siberian Lidar Station of V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, over Tomsk in 2023. The annual variation in the vertical ozone distribution is shown, as well as high ozone content in the lower stratosphere–upper troposphere recorded on March 9, 2023, which is assumed to be caused by a quire rare process of stratospheric–tropospheric air mass transport through the tropopause.
  PubDate: 2025-04-01
Simulation of Greenhouse Gas Content in the Atmosphere of Oil- and
Gas-Producing Areas
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  Abstract: Abstract The technology of preparing the chemical raw material or fuel from associated petroleum gas envisages combustion of associated gas in low-pressure flares, emitting into the atmosphere soot (C), nitrogen dioxide (NO2), carbon dioxide (CO2), and methane (CH4). To estimate the state of the atmosphere in the region of oil-gas production, a comprehensive approach is suggested to simulate the pollutant dispersal fields in the surface air layer from flare units on the territory of the Mamontovskoye field of the Nefteyugansk district of the KhMAO. This approach incorporates the simulation of pollutant (С, NO2, CO2, and CH4) concentrations using UPRZA Eco-Center software together with ground-based data (the content of organic compounds in soils) and satellite (AIRS) data (greenhouse gas concentrations). This approach enables comprehensive studies of the state of the natural environment in remote northern oil and gas producing areas on the basis of satellite and ground-based data.
  PubDate: 2025-02-01
Features of the Vertical Distribution of Air Temperature over Tomsk during
Sudden Stratospheric Warming in Winter 2023 According to Data from the
Siberian Lidar Station
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  Abstract: Abstract Atmospheric temperature anomalies associated with sudden stratospheric warming events (SSWs) observed over the territory of Siberia require detailed study. In Siberia, there are few instruments that can provide the necessary information on the vertical distribution of atmospheric temperature. Unique lidar of the Siberian Lidar Station (SLS) of V.E. Zuev Institute of Atmospheric Optics SB RAS, Tomsk, Russia (56.48° N, 85.05° E), developed for regular lidar measurements of atmospheric parameters, is one of few ground-based devices in Siberia which provide necessary data on the vertical stratification of atmospheric temperature during the SSW effect. To determine the characteristics of atmospheric temperature anomalies during the SSW period in winter 2023 over Tomsk, data on atmospheric temperature in individual nights obtained by the SLS lidar, the WACCM model, the standard mid-latitude winter model, and the ERA5 reanalysis were compared. For the first time, the possibility of using vertical atmospheric temperature profiles obtained by the Raman scattering method to study the SSW effect is show. Use of lidar air temperature profiles to analyze changes in the vertical structure of the atmosphere during SSWs is demonstrated.
  PubDate: 2025-02-01
Experimental Verification of the Model Dependence of the Turbulent Prandtl
Number on the Gradient Richardson Number
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  Abstract: Abstract A formula has been derived which connects the structural constant of temperature fluctuations with the dissipation rate of kinetic energy of turbulence not through the turbulent thermal diffusivity but through the vertical gradients of average wind velocity and air temperature and the turbulent Prandtl number. To estimate the structural constant of temperature using this formula, a model based on generalization of known data on the turbulent Prandtl number as a function of the gradient Richardson number is proposed. It has been experimentally shown that the time series of the structural constant of temperature, which is calculated using the proposed formula and independently found from the spectra of temperature fluctuations based on measurements of wind velocity and air temperature with sonic anemometers at two altitudes, are consistent with each other. This confirms correctness of the theoretical constructions the generalized results of which serve as the basis for the model dependence of the turbulent Prandtl number on the gradient Richardson number and opens possibilities of remote determination of the structural constant of temperature from measurements of wind velocity and temperature.
  PubDate: 2025-02-01

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