{"title":"基于GEOS-CHEM化学模型和CAMS化学再分析的TAIGA伽玛射线天文台附近大气气溶胶光学深度","authors":"E. Yu. Mordvin, A. I. Revyakin, A. A. Lagutin","doi":"10.1134/S1024856025700460","DOIUrl":null,"url":null,"abstract":"<p>Atmospheric aerosol affects astronomical observations in the visible spectral region (400−700 nm). Therefore, information on the dynamics of optical properties of the atmosphere in the region of an astrophysical experiment is required for correct interpretation of experimental results. In the lack of local measurements, data on the state of the atmosphere can be derived, for example, from numerical simulation. The paper discusses the simulation results for AOD in the region of TAIGA gamma-ray observatory, where EAS Cherenkov radiation is recorded at night, with the use of GEOS-CHEM chemical transport model and CAMS chemical reanalysis. According to GEOS-CHEM and CAMS data, the average AODs (at a wavelength of 550 nm) over September–April in 2019–2022 were ∼0.08 and ∼0.05, respectively. The AOD maximum is observed in April and can attain 0.6. Verification of the simulation results with AERONET data shows their satisfactory agreement: the correlation coefficient is 0.92 for GEOS-CHEM and 0.91 for CAMS. Hence, the results of GEOS-CHEM and CAMS can be used for processing data from TAIGA gamma-ray observatory, as well as from similar astrophysical projects.</p>","PeriodicalId":46751,"journal":{"name":"Atmospheric and Oceanic Optics","volume":"38 5","pages":"584 - 590"},"PeriodicalIF":0.9000,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Aerosol Optical Depth of the Atmosphere near TAIGA Gamma-ray Observatory According to GEOS-CHEM Chemical Model and CAMS Chemical Reanalysis\",\"authors\":\"E. Yu. Mordvin, A. I. Revyakin, A. A. Lagutin\",\"doi\":\"10.1134/S1024856025700460\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Atmospheric aerosol affects astronomical observations in the visible spectral region (400−700 nm). Therefore, information on the dynamics of optical properties of the atmosphere in the region of an astrophysical experiment is required for correct interpretation of experimental results. In the lack of local measurements, data on the state of the atmosphere can be derived, for example, from numerical simulation. The paper discusses the simulation results for AOD in the region of TAIGA gamma-ray observatory, where EAS Cherenkov radiation is recorded at night, with the use of GEOS-CHEM chemical transport model and CAMS chemical reanalysis. According to GEOS-CHEM and CAMS data, the average AODs (at a wavelength of 550 nm) over September–April in 2019–2022 were ∼0.08 and ∼0.05, respectively. The AOD maximum is observed in April and can attain 0.6. Verification of the simulation results with AERONET data shows their satisfactory agreement: the correlation coefficient is 0.92 for GEOS-CHEM and 0.91 for CAMS. Hence, the results of GEOS-CHEM and CAMS can be used for processing data from TAIGA gamma-ray observatory, as well as from similar astrophysical projects.</p>\",\"PeriodicalId\":46751,\"journal\":{\"name\":\"Atmospheric and Oceanic Optics\",\"volume\":\"38 5\",\"pages\":\"584 - 590\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2025-10-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Atmospheric and Oceanic Optics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1024856025700460\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric and Oceanic Optics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1024856025700460","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OPTICS","Score":null,"Total":0}
Aerosol Optical Depth of the Atmosphere near TAIGA Gamma-ray Observatory According to GEOS-CHEM Chemical Model and CAMS Chemical Reanalysis
Atmospheric aerosol affects astronomical observations in the visible spectral region (400−700 nm). Therefore, information on the dynamics of optical properties of the atmosphere in the region of an astrophysical experiment is required for correct interpretation of experimental results. In the lack of local measurements, data on the state of the atmosphere can be derived, for example, from numerical simulation. The paper discusses the simulation results for AOD in the region of TAIGA gamma-ray observatory, where EAS Cherenkov radiation is recorded at night, with the use of GEOS-CHEM chemical transport model and CAMS chemical reanalysis. According to GEOS-CHEM and CAMS data, the average AODs (at a wavelength of 550 nm) over September–April in 2019–2022 were ∼0.08 and ∼0.05, respectively. The AOD maximum is observed in April and can attain 0.6. Verification of the simulation results with AERONET data shows their satisfactory agreement: the correlation coefficient is 0.92 for GEOS-CHEM and 0.91 for CAMS. Hence, the results of GEOS-CHEM and CAMS can be used for processing data from TAIGA gamma-ray observatory, as well as from similar astrophysical projects.
期刊介绍：
Atmospheric and Oceanic Optics is an international peer reviewed journal that presents experimental and theoretical articles relevant to a wide range of problems of atmospheric and oceanic optics, ecology, and climate. The journal coverage includes: scattering and transfer of optical waves, spectroscopy of atmospheric gases, turbulent and nonlinear optical phenomena, adaptive optics, remote (ground-based, airborne, and spaceborne) sensing of the atmosphere and the surface, methods for solving of inverse problems, new equipment for optical investigations, development of computer programs and databases for optical studies. Thematic issues are devoted to the studies of atmospheric ozone, adaptive, nonlinear, and coherent optics, regional climate and environmental monitoring, and other subjects.
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