A. Trifonova-Yakovleva, T. Y. Chesnokova, A. V. Chentsov, N. Rokotyan, K. Gribanov, I. V. Zadvornyh, V. Zakharov
Atmospheric monitoring of methane shows that CH4 concentration growth since 2007 is accompanied by C13/C12 isotopic delta ratio shift to more negative values due to 13CH4 content depletion. In the work, the atmospheric total column amount and vertical profiles of 13CH4 and 12CH4 are retrieved from the ground-based measurements of solar spectra in Kourovka observatory. The CH4 isotopologues ratio is calculated. The error of the isotopologues content retrieval is estimated for different spectral regions. On basis of the obtained results, optimal spectral windows were found.
{"title":"Retrieval of 13CH4 atmospheric content and CH4 isotopologues ratio from ground-based measurements of solar spectra","authors":"A. Trifonova-Yakovleva, T. Y. Chesnokova, A. V. Chentsov, N. Rokotyan, K. Gribanov, I. V. Zadvornyh, V. Zakharov","doi":"10.1117/12.2645081","DOIUrl":"https://doi.org/10.1117/12.2645081","url":null,"abstract":"Atmospheric monitoring of methane shows that CH4 concentration growth since 2007 is accompanied by C13/C12 isotopic delta ratio shift to more negative values due to 13CH4 content depletion. In the work, the atmospheric total column amount and vertical profiles of 13CH4 and 12CH4 are retrieved from the ground-based measurements of solar spectra in Kourovka observatory. The CH4 isotopologues ratio is calculated. The error of the isotopologues content retrieval is estimated for different spectral regions. On basis of the obtained results, optimal spectral windows were found.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"25 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":"130410175","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. V. Nevzorov, A. P. Makeev, A. A. Nevzorov, A. Nadeev, N. Zaitsev
At the Siberian Lidar Station in V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences in Tomsk (56.5 N, 85.0 E), a lidar is operated to measure the ozone vertical distribution in the upper tropospherelower stratosphere, to study the ozone dynamics in the tropopause region, and to investigate the stratosphere-troposphere exchange. In this work, we compare R7207-01 PMT, operated on this lidar jointly with amplifiers-discriminators C3866 of HAMAMATSU firm for signal recording, against H12386-210 PMT units at the wavelength pair of 299/341 nm. It is shown that the new H12386-210 PMT units are promising for ozone sensing at the wavelength pair of 299/341 nm.
在位于托木斯克(56.5 N, 85.0 E)的俄罗斯科学院西伯利亚分院V.E. Zuev大气光学研究所西伯利亚激光雷达站，利用激光雷达测量了对流层上层和平流层下层的臭氧垂直分布，研究了对流层顶区域的臭氧动力学，并对平流层-对流层交换进行了研究。在这项工作中，我们比较了R7207-01 PMT与HAMAMATSU公司的C3866放大器鉴别器联合工作的信号记录，与H12386-210 PMT单元在299/341 nm波长对上的信号记录。结果表明，新型的H12386-210 PMT单元在299/341 nm波长对上具有良好的臭氧传感前景。
{"title":"Differential absorption lidar for ozone sensing in the upper troposphere-lower stratosphere at Siberian Lidar Station","authors":"A. V. Nevzorov, A. P. Makeev, A. A. Nevzorov, A. Nadeev, N. Zaitsev","doi":"10.1117/12.2643478","DOIUrl":"https://doi.org/10.1117/12.2643478","url":null,"abstract":"At the Siberian Lidar Station in V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences in Tomsk (56.5 N, 85.0 E), a lidar is operated to measure the ozone vertical distribution in the upper tropospherelower stratosphere, to study the ozone dynamics in the tropopause region, and to investigate the stratosphere-troposphere exchange. In this work, we compare R7207-01 PMT, operated on this lidar jointly with amplifiers-discriminators C3866 of HAMAMATSU firm for signal recording, against H12386-210 PMT units at the wavelength pair of 299/341 nm. It is shown that the new H12386-210 PMT units are promising for ozone sensing at the wavelength pair of 299/341 nm.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"18 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":"127863808","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 variability of dissolved (organic and inorganic) carbon and optical characteristics of dissolved organic matter (DOM) in the main stems of the Great Siberian rivers (Ob and Lena) during the summer season was studied. It has been established that in the observed spatial variability of the studied parameters in the river main stem, along with landscape-geographical features of the catchment area, the riverine hydrograph has the most important role. Phase of the river runoff may differ significantly in different river sections during the same period, largely causing quantitative and qualitative variations in the composition of the DOM as well as dissolved carbon concentrations.
{"title":"Dynamics of dissolved carbon and optical characteristics of dissolved organic matter in the Siberian rivers","authors":"I. Pipko, S. Pugach","doi":"10.1117/12.2644879","DOIUrl":"https://doi.org/10.1117/12.2644879","url":null,"abstract":"The variability of dissolved (organic and inorganic) carbon and optical characteristics of dissolved organic matter (DOM) in the main stems of the Great Siberian rivers (Ob and Lena) during the summer season was studied. It has been established that in the observed spatial variability of the studied parameters in the river main stem, along with landscape-geographical features of the catchment area, the riverine hydrograph has the most important role. Phase of the river runoff may differ significantly in different river sections during the same period, largely causing quantitative and qualitative variations in the composition of the DOM as well as dissolved carbon concentrations.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"19 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":"127976889","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}
I. Botygin, V. Tartakovsky, V. Sherstnev, A. Sherstneva
The results of a study noise filtering in temperature time series measuring channels using basic frequency filtering algorithms are presented. The study was carried out from the perspective of high frequency random noise suppression. Temperature time series filtering was compared using sliding window procedures with adaptive bandwidth selection, median sliding window, and Baxter-King band-pass approximation. Experimental comparative analysis of filtering efficiency was carried out using the statistical programming language R and open libraries with sliding regression methods. The recorders of surface atmosphere parameters were ultrasonic meteorological stations located at the test site of IMKES SB RAS.
{"title":"Smoothing and extracting trend and cyclic components of time series","authors":"I. Botygin, V. Tartakovsky, V. Sherstnev, A. Sherstneva","doi":"10.1117/12.2645396","DOIUrl":"https://doi.org/10.1117/12.2645396","url":null,"abstract":"The results of a study noise filtering in temperature time series measuring channels using basic frequency filtering algorithms are presented. The study was carried out from the perspective of high frequency random noise suppression. Temperature time series filtering was compared using sliding window procedures with adaptive bandwidth selection, median sliding window, and Baxter-King band-pass approximation. Experimental comparative analysis of filtering efficiency was carried out using the statistical programming language R and open libraries with sliding regression methods. The recorders of surface atmosphere parameters were ultrasonic meteorological stations located at the test site of IMKES SB RAS.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"23 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":"125348643","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. P. Makeev, A. V. Nevzorov, S. I. Dolgii, O. Kharchenko
In this report we present and generalize the results from lidar measurements of the vertical distribution of the stratospheric aerosol layer at the Siberian Lidar Station in 2021. The description and technique of the stratospheric measurements at multichannel stationary lidar complex in Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk are presented. Based on the measurements and analysis of the data obtained, we confirm the regularity of increasing accumulation of background aerosol in the period of fall – winter, followed by its active depletion in summer period.
{"title":"State of stratospheric aerosol layer in 2021 using observations at Siberian Lidar Station in Tomsk","authors":"A. P. Makeev, A. V. Nevzorov, S. I. Dolgii, O. Kharchenko","doi":"10.1117/12.2644496","DOIUrl":"https://doi.org/10.1117/12.2644496","url":null,"abstract":"In this report we present and generalize the results from lidar measurements of the vertical distribution of the stratospheric aerosol layer at the Siberian Lidar Station in 2021. The description and technique of the stratospheric measurements at multichannel stationary lidar complex in Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, Tomsk are presented. Based on the measurements and analysis of the data obtained, we confirm the regularity of increasing accumulation of background aerosol in the period of fall – winter, followed by its active depletion in summer period.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"13 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":"121301424","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}
I. Kulinich, Alexey Ivashkin, A. Guliaeva, E. Shesterikov
The treatise presents the results that allow assessing the impact of the semiconductor-air interface geometry on the PIN diode characteristics. The study describes the semiconductor InGaAs/InAlAs-structure of the PIN photodiode grown on an InP-substrate and presents its topological scheme. For the study, a mathematical model of the PIN photodiode was built that describes the motion of charged particles and their distribution in the structure on the basis of Fermi-Dirac distribution function and the stimulated absorption of the electromagnetic radiation. The calculations yielded the dependence of the diode photoelectric current on the semiconductor-air interface geometry.
{"title":"Investigation the dependence of the photoelectric current of an InGaAs/InAlAs photodiode on the surface geometry","authors":"I. Kulinich, Alexey Ivashkin, A. Guliaeva, E. Shesterikov","doi":"10.1117/12.2644939","DOIUrl":"https://doi.org/10.1117/12.2644939","url":null,"abstract":"The treatise presents the results that allow assessing the impact of the semiconductor-air interface geometry on the PIN diode characteristics. The study describes the semiconductor InGaAs/InAlAs-structure of the PIN photodiode grown on an InP-substrate and presents its topological scheme. For the study, a mathematical model of the PIN photodiode was built that describes the motion of charged particles and their distribution in the structure on the basis of Fermi-Dirac distribution function and the stimulated absorption of the electromagnetic radiation. The calculations yielded the dependence of the diode photoelectric current on the semiconductor-air interface geometry.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"25 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":"122573083","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. Terpugova, E. P. Yausheva, D. Chernov, V. V. Pol’kin, Alexander Antonov, M. Panchenko
The relationship between the aerosol hygroscopic properties and the volume fraction of substances evaporating from particles in different temperature ranges during their artificial heating was analyzed by the method of active spectral nephelometry based on the measurement data obtained in 2000-2019. Throughout the year, there is a stable negative correlation between the parameter of condensation activity and the volume fraction of substances volatilizing in the range of 200-250°C. A stable positive correlation is observed in the temperature range from 25-75 to 160-200°C, the boundaries of the interval vary depending on the season.
{"title":"Seasonal behavior of the relationship of aerosol condensation activity with the relative content of volatile components in its composition","authors":"S. Terpugova, E. P. Yausheva, D. Chernov, V. V. Pol’kin, Alexander Antonov, M. Panchenko","doi":"10.1117/12.2644901","DOIUrl":"https://doi.org/10.1117/12.2644901","url":null,"abstract":"The relationship between the aerosol hygroscopic properties and the volume fraction of substances evaporating from particles in different temperature ranges during their artificial heating was analyzed by the method of active spectral nephelometry based on the measurement data obtained in 2000-2019. Throughout the year, there is a stable negative correlation between the parameter of condensation activity and the volume fraction of substances volatilizing in the range of 200-250°C. A stable positive correlation is observed in the temperature range from 25-75 to 160-200°C, the boundaries of the interval vary depending on the season.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"1 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":"126324113","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}
I. Medvedeva, A. V. Tatarnikov, I. Edemsky, A. Saunkin
We present the results of studying variations in the concentrations of the CO and H2O atmospheric constituents over the Baikal Natural Territory from the long-term (2010–2021) data of the MLS Aura satellite measurements. The data were analyzed at the stratospheric heights for pressure levels within 215–10 hPa (~11–32 km) for the locations of Khorinsk (52.17° N, 109.77° E) and Zhigalovo (54.81° N, 105.15° E). We obtained averaged seasonal variations in the concentrations of the analyzed components for each pressure level under day and night conditions for the 2010-2020 period. Comparison of the obtained results with the behavior of the concentrations of atmospheric constituents in 2021 revealed an increased CO concentration for Khorinsk in July–August 2021, when increased smoke from forest fires was observed in the analyzed region.
{"title":"Studying variations in atmospheric constituents over the Baikal Natural Territory from the long-term data of Aura MLS measurements","authors":"I. Medvedeva, A. V. Tatarnikov, I. Edemsky, A. Saunkin","doi":"10.1117/12.2644834","DOIUrl":"https://doi.org/10.1117/12.2644834","url":null,"abstract":"We present the results of studying variations in the concentrations of the CO and H2O atmospheric constituents over the Baikal Natural Territory from the long-term (2010–2021) data of the MLS Aura satellite measurements. The data were analyzed at the stratospheric heights for pressure levels within 215–10 hPa (~11–32 km) for the locations of Khorinsk (52.17° N, 109.77° E) and Zhigalovo (54.81° N, 105.15° E). We obtained averaged seasonal variations in the concentrations of the analyzed components for each pressure level under day and night conditions for the 2010-2020 period. Comparison of the obtained results with the behavior of the concentrations of atmospheric constituents in 2021 revealed an increased CO concentration for Khorinsk in July–August 2021, when increased smoke from forest fires was observed in the analyzed region.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"8 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":"122282152","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}
During the solar eclipse on June 10, 2021 for the JJY40 – Yakutsk radio path the amplitude signal changes were not registered, the phase delay decrease by 0.95 radians (11:14:06 UT) then the phase delay increase by 1.25 radians (12:02:24 UT). For the JJY40 - Tixie Bay path the amplitude increase by 5 dB (11:47:42 UT) and the phase delay increase by 1.2 radians (11:51:54 UT). The normalization coefficient was determined HJJY40-Tixie Bay = 4.93±0.54 km. The maximum change of the effective height of the Earth-ionosphere waveguide JJY40 – Tixie Bay for the maximum shading (11:39:18 UT) is 7.08 km (68° N, 132° E, Φ = 0.883).
{"title":"Amplitude and phase changes of the LF radio signal of the transmitter JJY40 registered in Yakutsk and Tixie Bay during the solar eclipse on June 10, 2021","authors":"A. Korsakov, V. Kozlov, R. Karimov","doi":"10.1117/12.2644844","DOIUrl":"https://doi.org/10.1117/12.2644844","url":null,"abstract":"During the solar eclipse on June 10, 2021 for the JJY40 – Yakutsk radio path the amplitude signal changes were not registered, the phase delay decrease by 0.95 radians (11:14:06 UT) then the phase delay increase by 1.25 radians (12:02:24 UT). For the JJY40 - Tixie Bay path the amplitude increase by 5 dB (11:47:42 UT) and the phase delay increase by 1.2 radians (11:51:54 UT). The normalization coefficient was determined HJJY40-Tixie Bay = 4.93±0.54 km. The maximum change of the effective height of the Earth-ionosphere waveguide JJY40 – Tixie Bay for the maximum shading (11:39:18 UT) is 7.08 km (68° N, 132° E, Φ = 0.883).","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"4 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":"126827637","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}
This paper presents the results of modeling the effect of the annular solar eclipse on June 10, 2021 on the highlatitude ionosphere. Comparison of modeling results was carried out with experimental data from the Vertical Sounding (VS) station of Zhigansk Ionospheric Station. The study shows variations of critical frequencies of the F2 layer during solar eclipse and their correlation with the numerical model data. Numerical modeling of the ionospheric plasma state was performed using a semi-empirical three-dimensional ionospheric model based on Euler formalism with a module for solar eclipse pre-calculation1. A protracted decrease was detected at critical frequencies of the F2 layer of the evening and night ionosphere layer after solar eclipse.
{"title":"Numerical modeling of the ionospheric response to the solar eclipse of June 10, 2021 over the settlement of Zhigansk","authors":"V. Popov","doi":"10.1117/12.2644904","DOIUrl":"https://doi.org/10.1117/12.2644904","url":null,"abstract":"This paper presents the results of modeling the effect of the annular solar eclipse on June 10, 2021 on the highlatitude ionosphere. Comparison of modeling results was carried out with experimental data from the Vertical Sounding (VS) station of Zhigansk Ionospheric Station. The study shows variations of critical frequencies of the F2 layer during solar eclipse and their correlation with the numerical model data. Numerical modeling of the ionospheric plasma state was performed using a semi-empirical three-dimensional ionospheric model based on Euler formalism with a module for solar eclipse pre-calculation1. A protracted decrease was detected at critical frequencies of the F2 layer of the evening and night ionosphere layer after solar eclipse.","PeriodicalId":217776,"journal":{"name":"Atmospheric and Ocean Optics","volume":"30 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":"115286901","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：