Atmospheric and Oceanic Optics最新文献_第7页

Effect of a Model Fire on Atmospheric Turbulence Characteristics 模拟火灾对大气湍流特性的影响

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S102485602401007X

E. L. Loboda, A. V. Lutsenko, D. P. Kasymov, M. V. Agafontsev, I. A. Kolesnikov

引用次数: 0

Characteristics of Photonic Nanojet Formation on a Spherical Cluster of Dielectric Nanoparticles 介电纳米粒子球簇上形成的光子纳米射流的特征

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010068

Yu. E. Geints, E. K. Panina

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Simulation of Return Flux of Sodium LGS Generated by Polarized Light for Astronomical Observatories of the North Caucasus 模拟北高加索天文观测站偏振光产生的钠 LGS 返回通量

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010056

L. A. Bolbasova, S. A. Ermakov, V. P. Lukin

引用次数: 0

Characteristics of Convective Clouds Producing Heavy Precipitation in Northwest Russia 俄罗斯西北部产生强降水的对流云的特征

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010135

A. A. Sin’kevich, Yu. P. Mikhailovskii, A. B. Kurov, I. A. Tarabukin, N. E. Veremei, O. A. Dmitrieva, R. E. Torgunakov, M. L. Toropova

{"title":"Characteristics of Convective Clouds Producing Heavy Precipitation in Northwest Russia","authors":"A. A. Sin’kevich, Yu. P. Mikhailovskii, A. B. Kurov, I. A. Tarabukin, N. E. Veremei, O. A. Dmitrieva, R. E. Torgunakov, M. L. Toropova","doi":"10.1134/S1024856024010135","DOIUrl":"10.1134/S1024856024010135","url":null,"abstract":"Characteristics of clouds which produced heavy precipitation in St. Petersburg and Leningrad oblast on June 18, 2020, are considered based on measurements with a C-band Doppler radar, Pluvio2 200 precipitation gauges, and a Blitzortung lightning detection system. To assess the intensity of precipitation, different values of the coefficients in the Marshall–Palmer Z–R relation are studied. We show that it is reasonable to use the specific differential phase to calculate the precipitation intensity when it exceeds 30 mm/h and precipitation consists of raindrops and hail. The top of the clouds exceeded 12 km, the maximal reflectivity was higher than 52 dBZ, and the maximal precipitation intensity could exceed 160 mm/h. A significant volume of a cloud was occupied by hail particles, which were recorded from the Earth’s surface up to an altitude of 10 km. The highest reflectance was recorded in the precipitation zone, as well as in the hydrometeors melting area. All the clouds under study were thunderstorms. A sufficiently high correlation between the frequency of lightning and the intensity of precipitation is noted: the Spearman’s correlation coefficient exceeds 0.7.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883891","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

Transmission Spectrum of Nanoporous Aerogel Filled with SO2 and a Mixture of H2O and SO2 Vapors 填充了二氧化硫以及 H2O 和二氧化硫蒸汽混合物的纳米多孔气凝胶的透射光谱

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010093

Yu. N. Ponomarev, A. A. Solodov, A. M. Solodov, T. E. Kuraeva

引用次数: 0

Analysis of 14N18O Spectrum in the 5200–5500 сm−1 Spectral Region 5200-5500 сm-1 光谱区 14N18O 光谱分析

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010159

Yu. G. Borkov, O. N. Sulakshina, V. I. Serdyukov, L. N. Sinitsa

{"title":"Analysis of 14N18O Spectrum in the 5200–5500 сm−1 Spectral Region","authors":"Yu. G. Borkov, O. N. Sulakshina, V. I. Serdyukov, L. N. Sinitsa","doi":"10.1134/S1024856024010159","DOIUrl":"10.1134/S1024856024010159","url":null,"abstract":"The absorption spectrum of 14N18O molecule in the 5200–5500 сm−1 region was recorded for the first time using a Bruker IFS 125M Fourier spectrometer with a spectral resolution of 0.0056 сm−1. The analysis of the spectrum made it possible to detect the vibrational–rotational lines of the 3–0 band of the main transitions in the X2Π electronic state of the 14N18O molecule. For the main 2Π1/2–2Π1/2 and 2Π3/2–2Π3/2 transitions, positions of 102 lines from a Λ-doublet were recorded in three branches. The positions and relative intensities of each component of the doublet were determined for 61 resolved doublets. The maximal rotational quantum number J was 29.5. The experimental line positions in the 3–0 band confirm the calculated data presented in HITRAN database. The frequencies of recorded transitions, weighted in accordance with experimental uncertainties, were processed, and the spectroscopic constants were determined for the vibrational state ({v}) = 3. With the found spectroscopic constants, we predicted the rotational energy values up to J = 35.5 for the vibrational state ({v}) = 3 and transition frequencies in the 3–3 and 3–0 vibrational bands for the 2Π1/2 and 2Π3/2 electronic states. The calculation results agree with the data given in HITRAN within the error specified in this database.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140197980","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

Analysis of Water Vapor Absorption Lines in Modern Spectroscopic Databases in the 16 700–17 000 cm−1 Region 现代光谱数据库中 16 700-17 000 cm-1 区域的水蒸气吸收线分析

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010123

L. N. Sinitsa, T. Yu. Chesnokova

{"title":"Analysis of Water Vapor Absorption Lines in Modern Spectroscopic Databases in the 16 700–17 000 cm−1 Region","authors":"L. N. Sinitsa, T. Yu. Chesnokova","doi":"10.1134/S1024856024010123","DOIUrl":"10.1134/S1024856024010123","url":null,"abstract":"The validation of H2O absorption lines parameters in the modern spectroscopic databases such as HITRAN2016, HITRAN2020, GEISA2020, and W2020 is carried out in the visible region 16 700–17 000 cm−1. The H2O transmission spectra are simulated with the spectroscopic databases and compared with laboratory spectra of pure water vapor and H2O–N2 mixture (P = 1 atm) recorded using a Fourier spectrometer with light-emitting diodes of high luminance. The parameters of 65 H2O absorption lines from HITRAN2020 database are corrected on the basis of the measurements. The positions of 32 lines, intensities of 51 lines, and self-broadening coefficients of 10 lines are improved. The ratio of the HITRAN2020 broadening coefficients to the experimental values is close to 1, whereas the air pressure-induced line shift coefficients in the spectroscopic databases are, on average, two times higher than the experimental values, and therefore, our previously obtained experimental values of N2 pressure-induced line shift coefficients are used to simulate the transmission spectra of the H2O–N2 mixture. The difference of the experimental spectra from the spectra calculated with HITRAN2016, HITRAN2020, GEISA2020, W2020, and corrected HITRAN2020cor is estimated by the root-mean-square deviations RMS = 1.49 × 10–4, 1.64 × 10–4, 3.96 × 10–4, 3.49 × 10–4, and 1.26 × 10–4, respectively, in the case of pure water vapor and 1.15 × 10–4, 1.1 × 10–4, 2.23 × 10–4, 2.28 × 10–4, and 0.86 × 10–4 in the case of H2O–N2 mixture.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140197755","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

Extreme Events of Aerosol Pollution of the Atmosphere in Winter in Tomsk Akademgorodok 托木斯克阿卡德姆戈罗多克冬季大气气溶胶污染极端事件

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010147

E. P. Yausheva, V. A. Gladkikh, A. P. Kamardin, V. P. Shmargunov

{"title":"Extreme Events of Aerosol Pollution of the Atmosphere in Winter in Tomsk Akademgorodok","authors":"E. P. Yausheva, V. A. Gladkikh, A. P. Kamardin, V. P. Shmargunov","doi":"10.1134/S1024856024010147","DOIUrl":"10.1134/S1024856024010147","url":null,"abstract":"Monitoring measurements of aerosol characteristics and meteorological parameters in the lower atmospheric layer in the winter periods of 2016–2022 in Akademgorodok located in the southeast of Tomsk were used to analyze the conditions for the occurrence of extreme concentrations of submicron particles and black carbon in their composition in the surface layer. It is shown that when surface air temperature inversion and weak (down to 1.5 m/s) wind (air stagnation) occur in combination, the average aerosol characteristics under study increase by as much as a factor of three, and by as much as a factor of 7–8 relative to the seasonal averages in the case of a weak northwesterly wind. It is found that in situations with multiday air stagnation, the typical daily behavior, characterized by the afternoon minimum, changes. The concentrations increase until 15:00 LT up to the values 1.8 times larger than the nighttime minimum. On the other winter days, the maximum occurs at 10:00 LT, with the concentrations of submicron (black carbon) particles being a factor of 1.2 (a factor of 1.5) larger than the nighttime minimum.","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883770","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

Estimates of Variations in Radiative Forcing of Methane in the Past and in the Future 对过去和未来甲烷辐射强迫变化的估计

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010020

S. V. Akishina, A. S. Mikhailova, Yu. M. Timofeyev, N. N. Filippov

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Non-Line-of-Sight Optical Communication: Field, Laboratory, and Numerical Experiments in Russia in 2012–2022 非视距光通信：2012-2022 年俄罗斯的现场、实验室和数值实验

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Atmospheric and Oceanic Optics Pub Date : 2024-03-23 DOI: 10.1134/S1024856024010044

V. V. Belov, M. V. Tarasenkov, E. S. Poznakharev, A. V. Fedosov, V. N. Abramochkin

引用次数: 0