Interpretation of weak backscattering signals in a weakly clouded atmosphere
It is used here the lidar equation describing signals from a weakly turbid atmosphere to solve the problem of the determination of the atmospheric aerosol parameters. It is worthwhile to note that the backscattering and extinction coefficients are constant along the beam path in this case. First app...
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EDP Sciences
2021
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fttriple:oai:gotriple.eu:oai:doaj.org/article:86e4a3fe3e0a4f8fb375644077b242db 2023-05-15T15:12:14+02:00 Interpretation of weak backscattering signals in a weakly clouded atmosphere Bobrovsky Anatoly Dyachenko Natalia Potapova Irina Skoblikova Anna Yakovleva Tat’yana 2021-01-01 https://doi.org/10.1051/e3sconf/202124701071 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/23/e3sconf_icepp21_01071.pdf https://doaj.org/article/86e4a3fe3e0a4f8fb375644077b242db en fr eng fre EDP Sciences 2267-1242 doi:10.1051/e3sconf/202124701071 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/23/e3sconf_icepp21_01071.pdf https://doaj.org/article/86e4a3fe3e0a4f8fb375644077b242db undefined E3S Web of Conferences, Vol 247, p 01071 (2021) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.1051/e3sconf/202124701071 2023-01-22T19:23:28Z It is used here the lidar equation describing signals from a weakly turbid atmosphere to solve the problem of the determination of the atmospheric aerosol parameters. It is worthwhile to note that the backscattering and extinction coefficients are constant along the beam path in this case. First approximation of the exponent process can be used to describe the atmospheric extinction. The weak lidar signals were analyzed here. It is useful for calculations of the extinction coefficient the preliminary known value of this parameter. The systematic errors were analyzed for different points along the beam path. The signal power was measured at sufficiently large distance. The systematic errors of the extinction coefficient can exceed the systematic errors of the backscattering signal power. It was shown that corresponding value achieve 20. There was investigated the influence of the systematic errors of the measured signal including background light on the obtained results. It was shown that the obtained results cannot be accurate enough if we use preliminary obtained data found before the measurement. It is found that the relative error of the measured signal ˂1%. It is very important the relative error of the corresponding extinction coefficient can be ˃ 100%. There were investigated the results of measurements and the results of computations. First of all it is associated with the scattered irradiance. The cases were considered with absence and presence of water in the aerosol particles coating. It was shown that the developed models adequately describe the process of scattering by a particle. So it is possible significantly reduce the aerosol sizing error. This model can be applied in determining the pollution of the Arctic air basin. Article in Journal/Newspaper Arctic Unknown Arctic E3S Web of Conferences 247 01071 |
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Open Polar |
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language |
English French |
topic |
geo envir |
spellingShingle |
geo envir Bobrovsky Anatoly Dyachenko Natalia Potapova Irina Skoblikova Anna Yakovleva Tat’yana Interpretation of weak backscattering signals in a weakly clouded atmosphere |
topic_facet |
geo envir |
description |
It is used here the lidar equation describing signals from a weakly turbid atmosphere to solve the problem of the determination of the atmospheric aerosol parameters. It is worthwhile to note that the backscattering and extinction coefficients are constant along the beam path in this case. First approximation of the exponent process can be used to describe the atmospheric extinction. The weak lidar signals were analyzed here. It is useful for calculations of the extinction coefficient the preliminary known value of this parameter. The systematic errors were analyzed for different points along the beam path. The signal power was measured at sufficiently large distance. The systematic errors of the extinction coefficient can exceed the systematic errors of the backscattering signal power. It was shown that corresponding value achieve 20. There was investigated the influence of the systematic errors of the measured signal including background light on the obtained results. It was shown that the obtained results cannot be accurate enough if we use preliminary obtained data found before the measurement. It is found that the relative error of the measured signal ˂1%. It is very important the relative error of the corresponding extinction coefficient can be ˃ 100%. There were investigated the results of measurements and the results of computations. First of all it is associated with the scattered irradiance. The cases were considered with absence and presence of water in the aerosol particles coating. It was shown that the developed models adequately describe the process of scattering by a particle. So it is possible significantly reduce the aerosol sizing error. This model can be applied in determining the pollution of the Arctic air basin. |
format |
Article in Journal/Newspaper |
author |
Bobrovsky Anatoly Dyachenko Natalia Potapova Irina Skoblikova Anna Yakovleva Tat’yana |
author_facet |
Bobrovsky Anatoly Dyachenko Natalia Potapova Irina Skoblikova Anna Yakovleva Tat’yana |
author_sort |
Bobrovsky Anatoly |
title |
Interpretation of weak backscattering signals in a weakly clouded atmosphere |
title_short |
Interpretation of weak backscattering signals in a weakly clouded atmosphere |
title_full |
Interpretation of weak backscattering signals in a weakly clouded atmosphere |
title_fullStr |
Interpretation of weak backscattering signals in a weakly clouded atmosphere |
title_full_unstemmed |
Interpretation of weak backscattering signals in a weakly clouded atmosphere |
title_sort |
interpretation of weak backscattering signals in a weakly clouded atmosphere |
publisher |
EDP Sciences |
publishDate |
2021 |
url |
https://doi.org/10.1051/e3sconf/202124701071 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/23/e3sconf_icepp21_01071.pdf https://doaj.org/article/86e4a3fe3e0a4f8fb375644077b242db |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
E3S Web of Conferences, Vol 247, p 01071 (2021) |
op_relation |
2267-1242 doi:10.1051/e3sconf/202124701071 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/23/e3sconf_icepp21_01071.pdf https://doaj.org/article/86e4a3fe3e0a4f8fb375644077b242db |
op_rights |
undefined |
op_doi |
https://doi.org/10.1051/e3sconf/202124701071 |
container_title |
E3S Web of Conferences |
container_volume |
247 |
container_start_page |
01071 |
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1766342950413926400 |