E. P. Yausheva, V. V. Pol’kin, V. V. Pol’kin, S. A. Terpugova, V. Shmargunov, V. A. Gladkikh, A. P. Kamardin, M. V. Panchenko
The optical and microphysical characteristics of smog phenomena in the Akademgorodok of Tomsk in the winter period of 1997-2022 were studied. It was found that since 2011 the number and intensity of such situations has increased. On the example of smog on January 13-14, 2022 it is shown that a significant increase in the concentrations of atmospheric aerosol and equivalent of black carbon develops with temperature inversion and with a wind regime close to calm. There is an increase in both the submicron and coarse particle fractions, but more intense in the range of the submicron fraction. The formation of smog is accompanied by a decrease in the ability of aerosol particles to absorb moisture.
{"title":"Optical-microphysical characteristics of winter smogs according to measurements in the Academgorodok of Tomsk in 1997-2022","authors":"E. P. Yausheva, V. V. Pol’kin, V. V. Pol’kin, S. A. Terpugova, V. Shmargunov, V. A. Gladkikh, A. P. Kamardin, M. V. Panchenko","doi":"10.1117/12.2644907","DOIUrl":"https://doi.org/10.1117/12.2644907","url":null,"abstract":"The optical and microphysical characteristics of smog phenomena in the Akademgorodok of Tomsk in the winter period of 1997-2022 were studied. It was found that since 2011 the number and intensity of such situations has increased. On the example of smog on January 13-14, 2022 it is shown that a significant increase in the concentrations of atmospheric aerosol and equivalent of black carbon develops with temperature inversion and with a wind regime close to calm. There is an increase in both the submicron and coarse particle fractions, but more intense in the range of the submicron fraction. The formation of smog is accompanied by a decrease in the ability of aerosol particles to absorb moisture.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121320050","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}
The article provides the PIN-photodiode semiconductor structure In0.52Al0.48As/In0.53Ga0.47As/InP computer simulation results. The structure was grown on an InP-substrate by the method of molecular beam epitaxy. In modeling, PIN-photodiode mathematical model was constructed, with the help of which photocurrent values were obtained for various thicknesses of the undoped section in photodiode absorbing layer. The photodiode response time values are also obtained.
{"title":"High-speed heteroepitaxial In0.52Al0.48As/In0.53Ga0.47As/InP PIN photodiodes with superlattice structure","authors":"A. Udalov, E. Shesterikov, I. Kulinich","doi":"10.1117/12.2644856","DOIUrl":"https://doi.org/10.1117/12.2644856","url":null,"abstract":"The article provides the PIN-photodiode semiconductor structure In0.52Al0.48As/In0.53Ga0.47As/InP computer simulation results. The structure was grown on an InP-substrate by the method of molecular beam epitaxy. In modeling, PIN-photodiode mathematical model was constructed, with the help of which photocurrent values were obtained for various thicknesses of the undoped section in photodiode absorbing layer. The photodiode response time values are also obtained.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121382178","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}
Terrestrial gross primary production (GPP) is the quantitative equivalent of the total amount of carbon assimilated by vegetation through photosynthesis. The GPP is crucial element for understanding land-atmosphere carbon exchange. In recent years, solar-induced chlorophyll fluorescence (SIF) observed by satellite radiometers has been considered as a new approach to advance research on monitoring of GPP from space. In this paper we presents quantitative estimates of the terrestrial gross primary production for the region of the south of Western Siberia (50º-55 º N, 75º -90º E) obtained using “sun-induced chlorophyll fluorescence” data products from orbital carbon observatories OCO-2 and OCO-3. The analysis of OCO-2 data was carried out for the period 2014-2021, the results of OCO-3 were added to processing from 2019. It was established that GPP reaches a maximum in the summer months and is ~10 − 12 gC m-2day-1.
{"title":"Estimates of the terrestrial gross primary production for the south of Western Siberia in 2014-2021 according to OCO-2 and OCO-3 data","authors":"A. Lagutin, E. Mordvin, N. Volkov","doi":"10.1117/12.2645053","DOIUrl":"https://doi.org/10.1117/12.2645053","url":null,"abstract":"Terrestrial gross primary production (GPP) is the quantitative equivalent of the total amount of carbon assimilated by vegetation through photosynthesis. The GPP is crucial element for understanding land-atmosphere carbon exchange. In recent years, solar-induced chlorophyll fluorescence (SIF) observed by satellite radiometers has been considered as a new approach to advance research on monitoring of GPP from space. In this paper we presents quantitative estimates of the terrestrial gross primary production for the region of the south of Western Siberia (50º-55 º N, 75º -90º E) obtained using “sun-induced chlorophyll fluorescence” data products from orbital carbon observatories OCO-2 and OCO-3. The analysis of OCO-2 data was carried out for the period 2014-2021, the results of OCO-3 were added to processing from 2019. It was established that GPP reaches a maximum in the summer months and is ~10 − 12 gC m-2day-1.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114833345","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}
The research studies the unfavorable meteorological and synoptic situations contributing to an increase in the concentration of sulfur dioxide (SO2) and carbon monoxide (CO) in the air basin of the Southern Baikal region. Atmospheric impurities and meteorological parameters were registered at the Listvyanka station with SV-320 and R310-A chemiluminescent gas analyzers, as well as a Meteo-2M ultrasonic weather station. General synoptic processes over the region were studied using the Digital Atmosphere software and the HYSPLIT trajectory model. The influence of various meteorological conditions on the atmospheric air over the Listvyanka station in 2020 and 2021 was determined.
{"title":"Dependence of the concentration of small gas impurities in the air basin of the Southern Baikal region on synoptic and meteorological conditions according to the Listvyanka station","authors":"M. Shikhovtsev, V. Obolkin, Y. Molozhnikova","doi":"10.1117/12.2643498","DOIUrl":"https://doi.org/10.1117/12.2643498","url":null,"abstract":"The research studies the unfavorable meteorological and synoptic situations contributing to an increase in the concentration of sulfur dioxide (SO2) and carbon monoxide (CO) in the air basin of the Southern Baikal region. Atmospheric impurities and meteorological parameters were registered at the Listvyanka station with SV-320 and R310-A chemiluminescent gas analyzers, as well as a Meteo-2M ultrasonic weather station. General synoptic processes over the region were studied using the Digital Atmosphere software and the HYSPLIT trajectory model. The influence of various meteorological conditions on the atmospheric air over the Listvyanka station in 2020 and 2021 was determined.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124145905","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}
A. Gruzdev, N. Elansky, A. Elokhov, V. Savinykh, A. Arabov, Aleksandr N. Borovski, I. Senik
The methods are described and the results of long-term measurements of the total NO2 and O3 column content at the Zvenigorod Scientific Station and the Kislovodsk High-Altitude Scientific Station of the A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, are discussed. Annual and seasonally dependent estimates of long-term trends and interannual variations of the species under the influence of circulation factors and oscillations in t solar activity are obtained. The differences and common features of the temporal evolution of NO2 and O3 have been revealed. The important role of atmospheric circulation in long-term and interannual changes in the species contents is noted. The obtained estimates of linear trends are compared with the trends of the total NO2 and O3 content in other regions. Changes in the NO2 content under due to the 11-year solar cycle are compared with the results of numerical modeling.
{"title":"Long-term measurements of total NO2 and O3 column contents at stations of the A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences: observational methods, long-term trends and interannual variations of the species","authors":"A. Gruzdev, N. Elansky, A. Elokhov, V. Savinykh, A. Arabov, Aleksandr N. Borovski, I. Senik","doi":"10.1117/12.2643897","DOIUrl":"https://doi.org/10.1117/12.2643897","url":null,"abstract":"The methods are described and the results of long-term measurements of the total NO2 and O3 column content at the Zvenigorod Scientific Station and the Kislovodsk High-Altitude Scientific Station of the A. M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, are discussed. Annual and seasonally dependent estimates of long-term trends and interannual variations of the species under the influence of circulation factors and oscillations in t solar activity are obtained. The differences and common features of the temporal evolution of NO2 and O3 have been revealed. The important role of atmospheric circulation in long-term and interannual changes in the species contents is noted. The obtained estimates of linear trends are compared with the trends of the total NO2 and O3 content in other regions. Changes in the NO2 content under due to the 11-year solar cycle are compared with the results of numerical modeling.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126248367","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}
N. Kan, I. Tkachev, D. N. Timofeev, V. Shishko, A. Konoshonkin
The paper presents the results of comparing numerical solutions to the problem of light scattering on atmospheric ice particles by methods of geometric and physical optics. The solution was constructed for hexagonal shaped particles (hexagonal ice column) and droxtals. The results of the comparison of the light scattering matrix over the entire sphere of the direction showed that in the direction of scattering strictly backward, the use of the geometric optics approximation can lead to significant errors, especially for hexagonal particles, which are characterized by the presence of angular reflection
{"title":"Data bank of light scattering matrices over the all scattering directions for atmospheric ice particles of cirrus clouds, calculated within the approximation of geometric and physical optics","authors":"N. Kan, I. Tkachev, D. N. Timofeev, V. Shishko, A. Konoshonkin","doi":"10.1117/12.2645074","DOIUrl":"https://doi.org/10.1117/12.2645074","url":null,"abstract":"The paper presents the results of comparing numerical solutions to the problem of light scattering on atmospheric ice particles by methods of geometric and physical optics. The solution was constructed for hexagonal shaped particles (hexagonal ice column) and droxtals. The results of the comparison of the light scattering matrix over the entire sphere of the direction showed that in the direction of scattering strictly backward, the use of the geometric optics approximation can lead to significant errors, especially for hexagonal particles, which are characterized by the presence of angular reflection","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126503131","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}
A. Krasheninnikov, Y. Rybnov, S. Soloviev, Sergey Rybnov
Instrumental observations of the dust and gas clouds development and microparticles emissions into the atmosphere were carried out during mass explosions at the Lebedinsky quarry. In the process of observations, a stationary observation point and a number of mobile points were organized. The results of observations made it possible to obtain estimates of both the maximum values of the solid particles concentrations and their average daily values in the settlements located in the immediate vicinity of the quarry. Sources of particulate matter emissions not related to technological operations at the quarry were also identified.
{"title":"Microparticles variations concentration during the mass explosions at the Lebedinsky quarry","authors":"A. Krasheninnikov, Y. Rybnov, S. Soloviev, Sergey Rybnov","doi":"10.1117/12.2644398","DOIUrl":"https://doi.org/10.1117/12.2644398","url":null,"abstract":"Instrumental observations of the dust and gas clouds development and microparticles emissions into the atmosphere were carried out during mass explosions at the Lebedinsky quarry. In the process of observations, a stationary observation point and a number of mobile points were organized. The results of observations made it possible to obtain estimates of both the maximum values of the solid particles concentrations and their average daily values in the settlements located in the immediate vicinity of the quarry. Sources of particulate matter emissions not related to technological operations at the quarry were also identified.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125487507","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}
S. Golik, V. A. Donchenko, A. A. Zemlyanov, Alexei A. Zemlyanov, A. Major, R. A. Ryambov, A. Trifonov
The experimentally obtained dependences of acoustic signals on the energy of femtosecond pulses in the filamentation mode, propagating in a liquid-drop aerosol with nanoparticles of various concentrations imitating Aitken nuclei, are presented. It is shown that, under the action of a femtosecond pulse filament, a water aerosol jet breaks into two jets.
{"title":"Acoustic signals from water aerosol with nanoparticles during filamentation of a femtosecond pulse","authors":"S. Golik, V. A. Donchenko, A. A. Zemlyanov, Alexei A. Zemlyanov, A. Major, R. A. Ryambov, A. Trifonov","doi":"10.1117/12.2644922","DOIUrl":"https://doi.org/10.1117/12.2644922","url":null,"abstract":"The experimentally obtained dependences of acoustic signals on the energy of femtosecond pulses in the filamentation mode, propagating in a liquid-drop aerosol with nanoparticles of various concentrations imitating Aitken nuclei, are presented. It is shown that, under the action of a femtosecond pulse filament, a water aerosol jet breaks into two jets.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125757908","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}
S. Popova, V. Makarov, F. Darin, I. Kruglinsky, D. Sorokoletov, M. Kravchishina
In this work, we present the measurements of the concentration of elemental composition of aerosol in the North Atlantic and at the polar station “Cape Baranov” (Severnaya Zemlya Archipelago). Based on the measurements of the elemental composition, performed in summer season (June-August) of 2019-2021, we can make a conclusion about the sources of aerosol production in the European and Asian parts of the Arctic region in this period of time. Aerosol in the atmosphere of the northern part of the Barents Sea is mainly formed due to mixed (anthropogenic and natural marine) sources; while the atmosphere of the Asian part of the Arctic basin is dominated by aerosol formed by continental sources.
{"title":"Elemental composition of aerosol in 80th/84th cruises of RV Akademik Mstislav Keldysh and at station Cape Baranov in 2019-2020","authors":"S. Popova, V. Makarov, F. Darin, I. Kruglinsky, D. Sorokoletov, M. Kravchishina","doi":"10.1117/12.2645933","DOIUrl":"https://doi.org/10.1117/12.2645933","url":null,"abstract":"In this work, we present the measurements of the concentration of elemental composition of aerosol in the North Atlantic and at the polar station “Cape Baranov” (Severnaya Zemlya Archipelago). Based on the measurements of the elemental composition, performed in summer season (June-August) of 2019-2021, we can make a conclusion about the sources of aerosol production in the European and Asian parts of the Arctic region in this period of time. Aerosol in the atmosphere of the northern part of the Barents Sea is mainly formed due to mixed (anthropogenic and natural marine) sources; while the atmosphere of the Asian part of the Arctic basin is dominated by aerosol formed by continental sources.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115952316","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}
The high-altitude distributions of the Richardson number above the 6-meters Big Telescope Alt-Azimuthal of SAO RAS for astronomical site characterization are study. The 1/Ri used as parameter for ranking sites in term regime of stability and relative probability of periods and regions of turbulence. The profiles of the gradients of the potential temperature and the wind speed up to height of 25km for each month of year are calculated. The data used from the ERA-Erratum reanalysis, which is widely acknowledged as being reliable.
{"title":"Atmospheric stability above 6-m Big Telescope Alt-Azimuthal site","authors":"L. Bolbasova","doi":"10.1117/12.2644895","DOIUrl":"https://doi.org/10.1117/12.2644895","url":null,"abstract":"The high-altitude distributions of the Richardson number above the 6-meters Big Telescope Alt-Azimuthal of SAO RAS for astronomical site characterization are study. The 1/Ri used as parameter for ranking sites in term regime of stability and relative probability of periods and regions of turbulence. The profiles of the gradients of the potential temperature and the wind speed up to height of 25km for each month of year are calculated. The data used from the ERA-Erratum reanalysis, which is widely acknowledged as being reliable.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125198456","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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