High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere
Ground-based passive measurements of downwelling atmospheric radiation at ~110.836 GHz allow extracting the spectra of ozone self-radiation (rotational transition J = 6<sub>1,5</sub>–6<sub>0,6</sub>) coming from the low stratosphere–mesosphere and retrieving vertical profiles...
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MDPI AG
2023-04-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/9/2259 |
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| author | Mikhail Yu. Kulikov Alexander A. Krasil’nikov Mikhail V. Belikovich Vitaly G. Ryskin Alexander A. Shvetsov Natalya K. Skalyga Lev M. Kukin Alexander M. Feigin |
| author_facet | Mikhail Yu. Kulikov Alexander A. Krasil’nikov Mikhail V. Belikovich Vitaly G. Ryskin Alexander A. Shvetsov Natalya K. Skalyga Lev M. Kukin Alexander M. Feigin |
| author_sort | Mikhail Yu. Kulikov |
| collection | DOAJ |
| description | Ground-based passive measurements of downwelling atmospheric radiation at ~110.836 GHz allow extracting the spectra of ozone self-radiation (rotational transition J = 6<sub>1,5</sub>–6<sub>0,6</sub>) coming from the low stratosphere–mesosphere and retrieving vertical profiles of ozone concentration at these altitudes. There is a notable (several hundred kHz) ambiguity in the determination of the resonance frequency of this important ozone line. We carried out long-term ground-based measurements of atmospheric microwave radiation in this range using upgraded apparatus with high technical accuracy and spectral resolution (~12 kHz). The obtained brightness temperature spectra allowed us to determine the frequency of this ozone line to be 110,835.909 ± 0.016 MHz. We verified that the Doppler frequency shift by horizontal wind as well as the variations of the tropospheric absorption had little effect on the obtained result. The found value was 131 ± 16 kHz less than that measured in the laboratory and differed from modern model calculations. At the same time, it was close to the results of early semiempirical calculations made more than 40 years ago. The applications where precise knowledge about the resonance frequency of this ozone line can be important were discussed in this paper. |
| first_indexed | 2024-03-11T04:07:36Z |
| format | Article |
| id | doaj.art-15bd63518ce5478e89e3337cd6d19682 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T04:07:36Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-15bd63518ce5478e89e3337cd6d196822023-11-17T23:37:42ZengMDPI AGRemote Sensing2072-42922023-04-01159225910.3390/rs15092259High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real AtmosphereMikhail Yu. Kulikov0Alexander A. Krasil’nikov1Mikhail V. Belikovich2Vitaly G. Ryskin3Alexander A. Shvetsov4Natalya K. Skalyga5Lev M. Kukin6Alexander M. Feigin7A.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaA.V. Gaponov–Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanov Str., 603950 Nizhny Novgorod, RussiaGround-based passive measurements of downwelling atmospheric radiation at ~110.836 GHz allow extracting the spectra of ozone self-radiation (rotational transition J = 6<sub>1,5</sub>–6<sub>0,6</sub>) coming from the low stratosphere–mesosphere and retrieving vertical profiles of ozone concentration at these altitudes. There is a notable (several hundred kHz) ambiguity in the determination of the resonance frequency of this important ozone line. We carried out long-term ground-based measurements of atmospheric microwave radiation in this range using upgraded apparatus with high technical accuracy and spectral resolution (~12 kHz). The obtained brightness temperature spectra allowed us to determine the frequency of this ozone line to be 110,835.909 ± 0.016 MHz. We verified that the Doppler frequency shift by horizontal wind as well as the variations of the tropospheric absorption had little effect on the obtained result. The found value was 131 ± 16 kHz less than that measured in the laboratory and differed from modern model calculations. At the same time, it was close to the results of early semiempirical calculations made more than 40 years ago. The applications where precise knowledge about the resonance frequency of this ozone line can be important were discussed in this paper.https://www.mdpi.com/2072-4292/15/9/2259ozonerotational transitionsmillimeter wave spectrummicrowave spectroradiometerstratospheremesosphere |
| spellingShingle | Mikhail Yu. Kulikov Alexander A. Krasil’nikov Mikhail V. Belikovich Vitaly G. Ryskin Alexander A. Shvetsov Natalya K. Skalyga Lev M. Kukin Alexander M. Feigin High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere Remote Sensing ozone rotational transitions millimeter wave spectrum microwave spectroradiometer stratosphere mesosphere |
| title | High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere |
| title_full | High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere |
| title_fullStr | High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere |
| title_full_unstemmed | High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere |
| title_short | High Precision Measurements of Resonance Frequency of Ozone Rotational Transition J = 6<sub>1,5</sub>–6<sub>0,6</sub> in the Real Atmosphere |
| title_sort | high precision measurements of resonance frequency of ozone rotational transition j 6 sub 1 5 sub 6 sub 0 6 sub in the real atmosphere |
| topic | ozone rotational transitions millimeter wave spectrum microwave spectroradiometer stratosphere mesosphere |
| url | https://www.mdpi.com/2072-4292/15/9/2259 |
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