Atmospheric and Oceanic Optics最新文献_第3页

Temperature Dependence of Water Vapor Microwave Line Broadening 水蒸气微波谱线展宽的温度依赖性

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700228

V. I. Starikov

引用次数: 0

Influence of Soil Moisture and Rainfall on the Efficiency of a Near-IR Hyperspectral Oil Pollution Detection Technique 土壤湿度和降雨量对近红外高光谱石油污染检测效率的影响

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700289

Minh Bach Nguyen, Yu. V. Fedotov, N. V. Baryshnikov, M. L. Belov

{"title":"Influence of Soil Moisture and Rainfall on the Efficiency of a Near-IR Hyperspectral Oil Pollution Detection Technique","authors":"Minh Bach Nguyen, Yu. V. Fedotov, N. V. Baryshnikov, M. L. Belov","doi":"10.1134/S1024856025700289","DOIUrl":"10.1134/S1024856025700289","url":null,"abstract":"Monitoring of oil pollution of the land surface is one of the pressing ecological issues today. The work is devoted to the experimental study of hyperspectral technique for detecting oil pollution on the land surface in the near-IR. The spectral brightness coefficients of soil samples contaminated with different oil product types are experimentally measured in the 1.6–2.5 μm spectral range. The influence of soil moisture and rainfall on the reflection spectra of soils (several types of sand and soil from forest and park areas) contaminated by oil products (of Moscow and Samara oil processing plants, kerosene, gas condensate, various gasoline brands, motor oils, and diesel fuel) is studied. It is shown that spectral dips near 1.73 and 2.3 μm (typical for soils contaminated with oil products) in most cases remain in the reflectance spectra under conditions of moderately moist soil, moderate rain, and even heavy rain. A specially created neural network shows the probability of detecting oil pollution on the land surface to be more than 99% under conditions of moderately moist soil and moderate rain and more than 88% under conditions of heavy rain and moist soil for 14 spectral channels 10 nm wide in the 1.6–2.4 μm range. The results can be used in the development of pipeline leak remote monitoring systems.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 4","pages":"441 - 447"},"PeriodicalIF":0.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Creation of an Extended Continuous Ionization Region in Atmospheric Aerosol by Laser Radiation 激光辐射在大气气溶胶中产生扩展连续电离区

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700265

S. F. Balandin, V. A. Donchenko, V. F. Myshkin, V. A. Pogodaev, V. A. Khan

{"title":"Creation of an Extended Continuous Ionization Region in Atmospheric Aerosol by Laser Radiation","authors":"S. F. Balandin, V. A. Donchenko, V. F. Myshkin, V. A. Pogodaev, V. A. Khan","doi":"10.1134/S1024856025700265","DOIUrl":"10.1134/S1024856025700265","url":null,"abstract":"To form plasma antennas in different radio and telecommunication devices it is necessary to increase the relaxation time of laser breakdown centers. To solve this problem, processes running in aerodisperse media with solid microparticles during interaction with laser radiation are considered. The decay time of plasma with aerosol particles under the action of nanosecond and microsecond laser pulses is analyzed. The effect of the electron shell around solid microparticles on the creation of a continuous ionization zone in an aerosol atmosphere formed by overlapping plasma halos around microparticles has been estimated. The conditions necessary for the generation of a long ionized channel by breakdown centers during explosive evaporation of atmospheric microparticles in the zone of action of a nanosecond CO2 laser pulse and the further maintenance of the generated plasma by microsecond laser radiation are considered. A scheme of an experimental setup for creating a long ionized channel in an aerosol atmosphere is suggested. The results can be used for creation of wireless communication channels in the atmosphere.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 4","pages":"424 - 431"},"PeriodicalIF":0.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction of Numerical Forecasts of Wind Gusts Using Artificial Neural Networks and Observations 利用人工神经网络和观测资料修正阵风数值预报

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700320

I. V. Del, A. V. Starchenko

引用次数: 0

Non-photochemical Formation of Atmospheric Hazes and Rate of Sulphate Accumulation in Them 大气雾霾的非光化学形成及其中硫酸盐积累速率

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S102485602570023X

G. B. Pronchev, A. N. Yermakov

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Vertical Wind Speed Variations in the Polar Stratosphere of Northern Hemisphere from ERA5 Reanalysis Data and their Correlation with the Lunar Tide ERA5再分析资料的北半球极地平流层垂直风速变化及其与月潮的相关性

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700290

D. S. Khabituev, O. S. Zorkaltseva

{"title":"Vertical Wind Speed Variations in the Polar Stratosphere of Northern Hemisphere from ERA5 Reanalysis Data and their Correlation with the Lunar Tide","authors":"D. S. Khabituev, O. S. Zorkaltseva","doi":"10.1134/S1024856025700290","DOIUrl":"10.1134/S1024856025700290","url":null,"abstract":"The NH Earth polar stratospheric vortex significantly varies from year to year in winter, which periodically leads to the occurrence of sudden stratospheric warmings (SSWs). Such events significantly disturb the circulation and chemical composition of the polar stratosphere. Our understanding of the wave processes that are recorded in the stratosphere and are directly involved in the occurrence of SSWs remains incomplete to date. Oscillations of the polar stratosphere of the Northern Hemisphere in the period from 1979 to 2023 are studied based on ERA5 reanalysis data. The method of current spectra is used to study the variations in the periodicity of wave processes in the polar stratosphere for different time intervals. As the main indicator of the wave properties of the stratosphere, we use the field of the vertical component of the wind velocity in the region between 60° and 90° N. It is shown that in some years, oscillations of the stratosphere coincide with or are close to the periods of the main waves of the fortnightly and monthly lunar gravitational tide. The causes and consequences of the oscillatory processes synchronization in the polar stratosphere with the lunar gravitational tide are discussed. The results can be useful for improving the understanding of the mechanisms of occurrence of SSWs, as well as for improving the forecast of such events.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 4","pages":"448 - 455"},"PeriodicalIF":0.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adjustment of the Power of Model Emissions of Anthropogenic Atmospheric Pollution Sources Based on Measurement Data and Adjoint Problem Methods 基于测量数据和伴随问题方法的人为大气污染源模型排放功率调整

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700319

P. N. Antokhin, A. V. Penenko, M. Yu. Arshinov, B. D. Belan, A. V. Gochakov

{"title":"Adjustment of the Power of Model Emissions of Anthropogenic Atmospheric Pollution Sources Based on Measurement Data and Adjoint Problem Methods","authors":"P. N. Antokhin, A. V. Penenko, M. Yu. Arshinov, B. D. Belan, A. V. Gochakov","doi":"10.1134/S1024856025700319","DOIUrl":"10.1134/S1024856025700319","url":null,"abstract":"The prediction of the level of air pollution by gaseous and aerosol constituents in cities becomes increasingly significant in view of their serious negative impact on public health and growing ecological risks. The article presents an approach to estimating and adjusting the emission power of anthropogenic sources based on direct and inverse modeling. The WRF-Chem model was used as a direct simulation tool, and the IMDAF system developed by the authors was used for inverse simulation. The results of direct simulation provided data on meteorological fields and the distribution of admixtures necessary for solving adjoint problems. The use of the adjoint problem method made it possible to calculate a correction factor that determines how much the power of sources that fall into the sensitivity zone should be changed to achieve the best agreement with measurements. Our approach can be used to improve the prediction of air quality, refine the inventories of anthropogenic emissions, and develop the strategies for reducing the ecological risks on global and regional scales.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 4","pages":"464 - 472"},"PeriodicalIF":0.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser-induced Fluorescence of Photodissociation Products of Liquid-drop Triethyl Phosphate on a Surface 表面上液滴磷酸三乙酯光解产物的激光诱导荧光

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700344

S. M. Bobrovnikov, E. V. Gorlov, V. I. Zharkov, S. N. Murashko

{"title":"Laser-induced Fluorescence of Photodissociation Products of Liquid-drop Triethyl Phosphate on a Surface","authors":"S. M. Bobrovnikov, E. V. Gorlov, V. I. Zharkov, S. N. Murashko","doi":"10.1134/S1024856025700344","DOIUrl":"10.1134/S1024856025700344","url":null,"abstract":"The paper studies a possibility of remote detection of surface traces of organophosphates using the double-pulse laser fragmentation/laser-induced fluorescence (LP/LIF) method. For liquid-drop traces of triethyl phosphate on a paper surface, the inertial character of origination of characteristic PO fragments (phosphorus oxide molecules) of organophosphates is shown. The concentration of formed fragments is maximal in approximately 2 μs after the action of a fragmenting laser pulse (266 nm). It is found that a delay of 2 μs between a laser pulse (247.78 nm) and a fragmenting pulse multiply increases the fluorescence intensity, by approximately 7 times compared to the single-pulse excitation method and approximately 2.3 times compared to simultaneous double-pulse action. Our experimental data confirm, first, a possibility of remote detection of surface traces of liquid-drop organophosphates by the two-pulse LF/LIF method and, second, a need in organizing optimal laser exposure conditions to increase the efficiency of the LF/LIF process. The results contribute to the knowledge about the efficiency of detecting organophosphate traces on other carrier surface types.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 4","pages":"487 - 491"},"PeriodicalIF":0.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of Sulfur Dioxide on Stratospheric Polar Cloud Formation and Ozone Destruction in the Winter–Spring Stratosphere of the Arctic Based on Aura MLS Observations 二氧化硫对北极冬春季平流层极地云形成和臭氧破坏的影响——基于Aura MLS观测

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700277

O. E. Bazhenov

{"title":"Influence of Sulfur Dioxide on Stratospheric Polar Cloud Formation and Ozone Destruction in the Winter–Spring Stratosphere of the Arctic Based on Aura MLS Observations","authors":"O. E. Bazhenov","doi":"10.1134/S1024856025700277","DOIUrl":"10.1134/S1024856025700277","url":null,"abstract":"Sulfur dioxide (SO2) plays a key role in the winter–spring stratosphere of the Arctic because the sulfur compounds SO2 and H2SO4 (together with nitric acid HNO3) are the primary construction materials in the formation of polar stratospheric clouds (PSCs). This paper studies the maximal SO2 concentrations and total SO2 columns at four Arctic sites: Eureka (Canada), Ny-Ålesund (Norway), Thule (Greenland), and Resolute (Canada) based on the data on the minimal air temperature, maximal negative deviations of ozone concentration from the multiyear average, maximal sulfur dioxide concentration in the Arctic stratosphere, and the total ozone and sulfur dioxide columns calculated from the corresponding altitude profiles. The temperature and ozone mixing ratio profiles are obtained from the Aura MLS observations for 2005–2022; the sulfur dioxide mixing ratio profiles are calculated from Aura MLS observations for 2010/11, 2019/20, 2020/21, and 2021/22. The results can be useful for studying of how SO2 affects the PSC formation and O3 destruction in the winter–spring stratosphere of the Arctic.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 4","pages":"432 - 440"},"PeriodicalIF":0.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regional Monitoring System for Air–Surface Turbulent Energy Exchange in Urban Conditions 城市条件下空气-地面湍流能量交换区域监测系统

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Atmospheric and Oceanic Optics Pub Date : 2025-09-04 DOI: 10.1134/S1024856025700307

A. E. Tel’minov, M. I. Varentsov, I. D. Drozd, S. N. Kapustin, A. A. Kobzev, V. A. Korolkov, M. A. Mirsanov, A. D. Pashkin

引用次数: 0