Atmospheric and Oceanic Optics最新文献_第7页

Influence of the Exponent in the Power-Law Model of Turbulence Spectrum in a Supersonic Flow on Laser Beam Propagation 超音速流动湍流谱幂律模型中指数对激光束传播的影响

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701021

D. A. Marakasov, A. A. Sukharev

引用次数: 0

Influence of the Composition and Morphology of Dielectric Mirrors of Lidar Systems on their Optical Breakdown Threshold 激光雷达系统介质反射镜的组成和形貌对其击穿阈值的影响

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701203

M. M. Zinovev, V. S. Kuznetsov, N. N. Yudin, E. S. Slyunko, S. N. Podzyvalov, A. B. Lysenko, A. Yu. Kalsin, A. Sh. Gabdrakhmanov, D. V. Vlasov

引用次数: 0

Characterization of Greenhouse Gas Emissions from the Territory of the St. Petersburg Agglomeration, Russia, Based on the Results of EMME-2019 and EMME-2020 Mobile Observational Campaigns 基于EMME-2019和EMME-2020移动观测活动结果的俄罗斯圣彼得堡集聚区温室气体排放特征

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701045

M. V. Makarova, S. C. Foka, D. V. Ionov, V. S. Kostsov, V. M. Ivakhov, N. N. Paramonova

{"title":"Characterization of Greenhouse Gas Emissions from the Territory of the St. Petersburg Agglomeration, Russia, Based on the Results of EMME-2019 and EMME-2020 Mobile Observational Campaigns","authors":"M. V. Makarova, S. C. Foka, D. V. Ionov, V. S. Kostsov, V. M. Ivakhov, N. N. Paramonova","doi":"10.1134/S1024856024701045","DOIUrl":"10.1134/S1024856024701045","url":null,"abstract":"Saint Petersburg is the second most populous city in the Russian Federation and the fourth in Europe. According to official statistics, ∼5.6 million people permanently live in the city. In order to experimentally estimate greenhouse gas emissions from the territory of the St. Petersburg agglomeration, an original combined approach was developed and implemented during EMME-2019 and ЕММЕ-2020 observational campaigns. The paper summarizes the results of mobile experiments in 2019 and 2020. The period March – early May chosen for the EMME campaigns is shown to be optimal for estimating CO2 emissions. The average anthropogenic additives caused by emissions from the territory of St. Petersburg were assessed at ∼1.07 ppmv for CO2 and ∼6.61 ppbv for CH4. Experimental estimates of specific greenhouse gas fluxes for the territory of the St. Petersburg agglomeration amounted to 72 kt km−2 year−1 CO2 and 198 t km−2 year−1 CH4 for six days of the campaign in 2020; 80 kt km−2 year−1 CO2 and 161 t km−2 year−1 CH4 for 15 days of the campaigns in 2019 and 2020. The CH4/CO2 and CO/CO2 emission ratios for St. Petersburg in March–early May 2020 averaged 6.4 and 5.7 ppbv/ppmv, respectively. Lockdown restrictions due to COVID-19 pandemic affected the structure of emission from the territory of St. Petersburg, namely, a sharp decrease in transport activity significantly decreased CO emissions from motor vehicles.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 6","pages":"786 - 797"},"PeriodicalIF":0.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553645","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

Statistical Simulation of Spaceborne Lidar Pulse Propagation in Cirrus Clouds Taking into Account Multiple Scattering 考虑多重散射的星载激光雷达脉冲在卷云中传播的统计模拟

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701057

T. V. Russkova, V. A. Shishko

{"title":"Statistical Simulation of Spaceborne Lidar Pulse Propagation in Cirrus Clouds Taking into Account Multiple Scattering","authors":"T. V. Russkova, V. A. Shishko","doi":"10.1134/S1024856024701057","DOIUrl":"10.1134/S1024856024701057","url":null,"abstract":"Laser remote sensing of cirrus clouds is accompanied by the problem of taking into account the multiple scattering of radiation, which influences the reliability of measurement interpretation. The contribution of multiple scattering of radiation to echo signals of a spaceborne lidar is estimated. The nonstationary problem of laser pulse propagation in continuous cirrus clouds with separation by scattering multiplicities is solved by the Monte Carlo method at different values of the optical and microstructural characteristics of clouds (optical thickness and shape and size of ice particles) and lidar parameters (distance from the sensing object, beam divergence, and field of view of the receiver). Numerical experiments were carried out taking into account the permissible range of the parameters for operational or promising spaceborne lidar systems. The features of the formation of the backward signal when aerosol and Rayleigh particles, as well as the underlying cloud layer, are introduced into the atmospheric model are discussed. The simulation results indicate the high sensitivity of the echo signal part caused by multiply scattered radiation to the parameters under study, which should be taken into account when formulating and solving inverse problems.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 6","pages":"798 - 807"},"PeriodicalIF":0.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553646","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

Determination of Coefficients of Water Vapor Absorption Line Center Shifting by Nitrogen and Oxygen Pressure in the Visible Range 可见光范围内氮、氧压力对水蒸气吸收线中心偏移系数的测定

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701008

V. I. Starikov

引用次数: 0

Features of the Spatial Distribution of Atmospheric Aerosol in the Eurasian Sector of the Arctic Ocean 北冰洋欧亚区大气气溶胶的空间分布特征

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701136

S. M. Sakerin, D. M. Kabanov, I. A. Kruglinsky, V. V. Pol’kin, A. O. Pochufarov

{"title":"Features of the Spatial Distribution of Atmospheric Aerosol in the Eurasian Sector of the Arctic Ocean","authors":"S. M. Sakerin, D. M. Kabanov, I. A. Kruglinsky, V. V. Pol’kin, A. O. Pochufarov","doi":"10.1134/S1024856024701136","DOIUrl":"10.1134/S1024856024701136","url":null,"abstract":"The interest in aerosol studies in the Arctic stems from the large dynamics of the climate processes and active economical development of this region. The number of polar stations, available at present, is insufficient to determine the aerosol spatial distribution over the territory of the Arctic Ocean (AO). In this paper, the long-term studies in the Eurasian sector of the Arctic Ocean (AO) (19 ship-based expeditions in 2007–2023) are used to statistically generalize the volume concentrations of fine and coarse aerosol (Vf and Vс) in the near-water layer and the aerosol optical depth (AOD) of the atmosphere. The average AOD (0.5 μm) was 0.061 with an Ångström exponent of 0.9; the average concentrations of fine and coarse aerosol were 0.35 and 2.5 μm3/cm3, respectively. The content of fine aerosol was the largest in the atmosphere over the Norwegian and Barents Seas. The spatial distribution was characterized by the decline in the concentrations in northern and eastern directions: the average Vf value decreased by a factor of 1.7 (from 0.43 to 0.26 μm3/cm3) from the Barents to Chukchi Sea. In the spatial distribution of coarse aerosol very high concentrations were in the southwestern part of the Kara Sea; the average Vс was 4.18 μm3/cm3. The content of coarse aerosol were in the Kara Sea severalfold decreased in the eastern and western directions. These results can be used in planning the economical development of the Arctic region and refining climate models.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 6","pages":"881 - 889"},"PeriodicalIF":0.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1024856024701136.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Specific Features of Distribution of Total Ozone Column Field over the Territory of Russia, its Interrelations, and Data Mismatch 俄罗斯境内臭氧总柱场分布特征、相互关系及数据错配

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2025-03-04 DOI: 10.1134/S1024856024701069

O. E. Bazhenov, A. V. Elnikov, V. A. Loginov

{"title":"Specific Features of Distribution of Total Ozone Column Field over the Territory of Russia, its Interrelations, and Data Mismatch","authors":"O. E. Bazhenov, A. V. Elnikov, V. A. Loginov","doi":"10.1134/S1024856024701069","DOIUrl":"10.1134/S1024856024701069","url":null,"abstract":"The studies of the total ozone column (TOC) field are among the important problems of atmospheric optics. In this paper, the spatial distribution of the TOC over Russian territory is analyzed based on Aura OMI (Ozone Monitoring Instrument) data. The observations for individual areas (sites) are presented in the form of TOC time series, which cover the observation period from January 2005 to December 2022. Integrated (without accounting for the seasonal variations) latitude–longitude features of TOC distribution over the territory under study are revealed; correlation coefficients between the TOC time series for different sites are calculated; their interrelations are studied as functions of the distance between the sites; the spatial autocorrelation function is compiled and the sizes of the spatial inhomogeneities of the TOC field are estimated. The spatial mismatch of the data is analyzed using a parameter representing a measure of the standard deviation from the average mismatch. The results of the work provide an idea of the scale of the spatial correlations in the TOC field and can be used for clarifying the optically active constituent of the atmosphere when developing weather and climate change prognostic models.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 6","pages":"808 - 814"},"PeriodicalIF":0.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553760","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

Severe Weather Events and Atmospheric Monitoring from Satellite Navigation Systems 卫星导航系统的恶劣天气事件和大气监测

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2024-12-19 DOI: 10.1134/S102485602470091X

O. G. Khutorova, M. V. Maslova, V. E. Khutorov

{"title":"Severe Weather Events and Atmospheric Monitoring from Satellite Navigation Systems","authors":"O. G. Khutorova, M. V. Maslova, V. E. Khutorov","doi":"10.1134/S102485602470091X","DOIUrl":"10.1134/S102485602470091X","url":null,"abstract":"Atmospheric monitoring from global satellite navigation systems is usually used for estimating the atmospheric integral water vapor and measuring zenith tropospheric delay of satellite radio signals and its gradient parameters characterizing atmospheric mesoscale irregularities with a high temporal resolution. Based on a sample of several hundred severe weather events corresponding to available observations at the nearest satellite stations in the Republic of Tatarstan and Moscow region located at latitudes 55°–56° N, the work shows a significant variability of these atmospheric parameters associated with convective severe weather events. The inhomogeneity of the field of the zenith tropospheric delay of satellite signals is shown to strongly increase under the conditions of a severe weather event, which is manifested in the increase in its gradient parameters and their fluctuations, as well as in the growth of the integral water vapor. The intensity of fluctuations of the integral water vapor most strongly changes if a station is located not further than 20 km from a severe event, which is explained by the size of convective cells. However, even if a station is spaced up to 200 km apart from a severe event, an increase in the atmospheric integral water vapor and the amplification of inhomogeneity as compared to long-term average data are observed.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 5","pages":"684 - 688"},"PeriodicalIF":0.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859824","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

Sensitivity of the Model of Methane Emission from Arctic Shelf Seas to Gas Exchange Parameterization 北极陆架海甲烷排放模式对气体交换参数化的敏感性

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2024-12-19 DOI: 10.1134/S1024856024700933

V. V. Malakhova, M. V. Kraineva

{"title":"Sensitivity of the Model of Methane Emission from Arctic Shelf Seas to Gas Exchange Parameterization","authors":"V. V. Malakhova, M. V. Kraineva","doi":"10.1134/S1024856024700933","DOIUrl":"10.1134/S1024856024700933","url":null,"abstract":"There is considerable uncertainty about the methane emission from Arctic shelf seas. Methane fluxes in this region can be underestimated and play a significant role due to the large volume of gas contained in bottom sediments in the permafrost and gas hydrates. We analyzed the model sensitivity to the parameterization of gas exchange processes on the sea surface based on the numerical modeling of the transport of dissolved methane in Arctic seas. A dissolved methane transport model is included into the basic model of the ocean and sea ice SibCIOM developed at Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch, Russian Academy of Sciences. Methane emissions into the atmosphere were estimated with various parameterization of the gas exchange process in the “water–atmosphere” and “water–ice–atmosphere” systems with NCEP/NCAR reanalysis data. The uncertainty of the estimate of annual methane emission amounted to 6–12% when considering different dependencies of gas exchange on wind. The scheme which considers the ice cover has a more pronounced influence on methane flux calculations: the uncertainty increased to 50–130%. Parameterization of the relation between ice cover and gas exchange can have a great effect on the calculated methane fluxes and lead to underestimation of its emission from Arctic shelf seas.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"37 5","pages":"698 - 705"},"PeriodicalIF":0.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859821","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

Study of the Content of Volatile Species in the Composition of Atmospheric Particles on the Basis of Thermal Impact and Recording by Optical Counters 基于热冲击和光学计数器记录的大气粒子组成中挥发性物质含量的研究

IF 0.9

Atmospheric and Oceanic Optics Pub Date : 2024-12-19 DOI: 10.1134/S1024856024700969

V. V. Pol’kin, M. V. Panchenko, S. A. Terpugova, V. P. Shmargunov

引用次数: 0