Atmospheric Optical Characteristics in the Area of 30–400 km
Extremely weak lidar reflections in the thermosphere, which correlate with ionosonde data, were detected in 2008 and 2017 over Kamchatka during seasons of low aerosol filling of the atmosphere at solar activity minima. Here, these reflections are considered in comparison with mesospheric and stratos...
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ftdoajarticles:oai:doaj.org/article:ede91a47ffc342da84211e1c35db3989 2023-05-15T16:59:28+02:00 Atmospheric Optical Characteristics in the Area of 30–400 km Boris M. Shevtsov Andrey N. Perezhogin Ilya N. Seredkin 2022-12-01T00:00:00Z https://doi.org/10.3390/rs14236108 https://doaj.org/article/ede91a47ffc342da84211e1c35db3989 EN eng MDPI AG https://www.mdpi.com/2072-4292/14/23/6108 https://doaj.org/toc/2072-4292 doi:10.3390/rs14236108 2072-4292 https://doaj.org/article/ede91a47ffc342da84211e1c35db3989 Remote Sensing, Vol 14, Iss 6108, p 6108 (2022) optics of the atmosphere resonant lidar laser ionozond lidar reflections in the thermosphere coefficient and cross-section of light scattering ionization Science Q article 2022 ftdoajarticles https://doi.org/10.3390/rs14236108 2022-12-30T20:11:33Z Extremely weak lidar reflections in the thermosphere, which correlate with ionosonde data, were detected in 2008 and 2017 over Kamchatka during seasons of low aerosol filling of the atmosphere at solar activity minima. Here, these reflections are considered in comparison with mesospheric and stratospheric lidar signals that makes it possible to determine favorable conditions for thermospheric lidar observations. In 2014, it was shown that lines of transitions between the excited states of atomic nitrogen ions fall within the 532 nm lidar signal emission band, and in 2017, lidar reflections in the thermosphere were simultaneously obtained at 561 and 532 nm excited transitions of atomic oxygen and nitrogen ions, thereby the resonant nature of thermospheric lidar reflections was established and confirmed. Here, using lidar signals at wavelengths of 561 and 532 nm in the altitude range of 30–400 km, by solving the inverse problem, we restore the light scattering coefficients corresponding to these wavelengths that makes it possible to compare the optical characteristics of the thermosphere, mesosphere, and upper stratosphere and to determine the relationship between resonant, Rayleigh, and aerosol light scattering at different heights of the atmosphere. In conclusion, using the scattering coefficients in the thermosphere, we find the cross-sections of light scattering at the 561 and 532 nm transitions of atomic oxygen and nitrogen ions and explain why the scattering coefficients for O <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>+</mo></msup></semantics></math> , 561 nm are less than for N <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>+</mo></msup></semantics></math> , 532 nm, while the concentration of O <math xmlns="http://www.w3.org/1998/Math/MathML" ... Article in Journal/Newspaper Kamchatka Directory of Open Access Journals: DOAJ Articles Remote Sensing 14 23 6108 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
optics of the atmosphere resonant lidar laser ionozond lidar reflections in the thermosphere coefficient and cross-section of light scattering ionization Science Q |
spellingShingle |
optics of the atmosphere resonant lidar laser ionozond lidar reflections in the thermosphere coefficient and cross-section of light scattering ionization Science Q Boris M. Shevtsov Andrey N. Perezhogin Ilya N. Seredkin Atmospheric Optical Characteristics in the Area of 30–400 km |
topic_facet |
optics of the atmosphere resonant lidar laser ionozond lidar reflections in the thermosphere coefficient and cross-section of light scattering ionization Science Q |
description |
Extremely weak lidar reflections in the thermosphere, which correlate with ionosonde data, were detected in 2008 and 2017 over Kamchatka during seasons of low aerosol filling of the atmosphere at solar activity minima. Here, these reflections are considered in comparison with mesospheric and stratospheric lidar signals that makes it possible to determine favorable conditions for thermospheric lidar observations. In 2014, it was shown that lines of transitions between the excited states of atomic nitrogen ions fall within the 532 nm lidar signal emission band, and in 2017, lidar reflections in the thermosphere were simultaneously obtained at 561 and 532 nm excited transitions of atomic oxygen and nitrogen ions, thereby the resonant nature of thermospheric lidar reflections was established and confirmed. Here, using lidar signals at wavelengths of 561 and 532 nm in the altitude range of 30–400 km, by solving the inverse problem, we restore the light scattering coefficients corresponding to these wavelengths that makes it possible to compare the optical characteristics of the thermosphere, mesosphere, and upper stratosphere and to determine the relationship between resonant, Rayleigh, and aerosol light scattering at different heights of the atmosphere. In conclusion, using the scattering coefficients in the thermosphere, we find the cross-sections of light scattering at the 561 and 532 nm transitions of atomic oxygen and nitrogen ions and explain why the scattering coefficients for O <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>+</mo></msup></semantics></math> , 561 nm are less than for N <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mo>+</mo></msup></semantics></math> , 532 nm, while the concentration of O <math xmlns="http://www.w3.org/1998/Math/MathML" ... |
format |
Article in Journal/Newspaper |
author |
Boris M. Shevtsov Andrey N. Perezhogin Ilya N. Seredkin |
author_facet |
Boris M. Shevtsov Andrey N. Perezhogin Ilya N. Seredkin |
author_sort |
Boris M. Shevtsov |
title |
Atmospheric Optical Characteristics in the Area of 30–400 km |
title_short |
Atmospheric Optical Characteristics in the Area of 30–400 km |
title_full |
Atmospheric Optical Characteristics in the Area of 30–400 km |
title_fullStr |
Atmospheric Optical Characteristics in the Area of 30–400 km |
title_full_unstemmed |
Atmospheric Optical Characteristics in the Area of 30–400 km |
title_sort |
atmospheric optical characteristics in the area of 30–400 km |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14236108 https://doaj.org/article/ede91a47ffc342da84211e1c35db3989 |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_source |
Remote Sensing, Vol 14, Iss 6108, p 6108 (2022) |
op_relation |
https://www.mdpi.com/2072-4292/14/23/6108 https://doaj.org/toc/2072-4292 doi:10.3390/rs14236108 2072-4292 https://doaj.org/article/ede91a47ffc342da84211e1c35db3989 |
op_doi |
https://doi.org/10.3390/rs14236108 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
23 |
container_start_page |
6108 |
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1766051734757572608 |