Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign
<p>Electronically excited states of molecular and atomic oxygen (six O<sub>2</sub> and two O) were implemented in the proposed Multiple Airglow Chemistry (MAC) model as minor species coupled with each other as well as with the ground states of O<sub>2</sub> and O to...
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Copernicus Publications
2020-02-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://www.atmos-chem-phys.net/20/2221/2020/acp-20-2221-2020.pdf |
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doaj-594f9ceef35f4eb98baa1f58defb02b52020-11-25T03:48:15ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242020-02-01202221226110.5194/acp-20-2221-2020Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaignO. Lednyts'kyyC. von Savigny<p>Electronically excited states of molecular and atomic oxygen (six O<sub>2</sub> and two O) were implemented in the proposed Multiple Airglow Chemistry (MAC) model as minor species coupled with each other as well as with the ground states of O<sub>2</sub> and O to represent the photochemistry in the upper mesosphere and lower thermosphere (MLT) region. The MAC model combines chemical processes of well-known photochemical models related to identified O<sub>2</sub> and O species and some additional processes. Concentrations of excited O<sub>2</sub> and O species were retrieved using the MAC model on the basis of the multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow (ETON) rocket campaign. The proposed retrieval procedure to obtain the concentrations of these minor species in the MLT region is implemented by avoiding a priori data sets. Unknown and poorly constrained reaction rates were tuned, and the reaction rates of the well-known models were updated with the MAC model by comparing in situ and evaluated emission profiles as well as in situ and retrieved O concentration profiles. As a result, precursors of O<sub>2</sub> and O species responsible for the transitions considered in the MAC model are identified and validated.</p>https://www.atmos-chem-phys.net/20/2221/2020/acp-20-2221-2020.pdf |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
O. Lednyts'kyy C. von Savigny |
| spellingShingle |
O. Lednyts'kyy C. von Savigny Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign Atmospheric Chemistry and Physics |
| author_facet |
O. Lednyts'kyy C. von Savigny |
| author_sort |
O. Lednyts'kyy |
| title |
Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign |
| title_short |
Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign |
| title_full |
Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign |
| title_fullStr |
Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign |
| title_full_unstemmed |
Photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the Energy Transfer in the Oxygen Nightglow rocket campaign |
| title_sort |
photochemical modeling of molecular and atomic oxygen based on multiple nightglow emissions measured in situ during the energy transfer in the oxygen nightglow rocket campaign |
| publisher |
Copernicus Publications |
| series |
Atmospheric Chemistry and Physics |
| issn |
1680-7316 1680-7324 |
| publishDate |
2020-02-01 |
| description |
<p>Electronically excited states of molecular and atomic oxygen (six O<sub>2</sub> and
two O) were implemented in the proposed Multiple Airglow Chemistry (MAC) model
as minor species coupled with each other as well as with the ground states of
O<sub>2</sub> and O to represent the photochemistry
in the upper mesosphere and lower thermosphere (MLT) region.
The MAC model combines chemical processes of well-known photochemical models
related to identified O<sub>2</sub> and O species and some additional processes.
Concentrations of excited O<sub>2</sub> and O species were retrieved using the MAC model on the basis of
the multiple nightglow emissions measured in situ during the Energy Transfer
in the Oxygen Nightglow (ETON) rocket campaign.
The proposed retrieval procedure to obtain the concentrations of these minor species in the MLT region is implemented by
avoiding a priori data sets.
Unknown and poorly constrained reaction rates were tuned, and the reaction rates of the well-known models
were updated with the MAC model by comparing in situ and evaluated emission profiles
as well as in situ and retrieved O concentration profiles.
As a result, precursors of O<sub>2</sub> and O species responsible for the transitions
considered in the MAC model are identified and validated.</p> |
| url |
https://www.atmos-chem-phys.net/20/2221/2020/acp-20-2221-2020.pdf |
| work_keys_str_mv |
AT olednytskyy photochemicalmodelingofmolecularandatomicoxygenbasedonmultiplenightglowemissionsmeasuredinsituduringtheenergytransferintheoxygennightglowrocketcampaign AT cvonsavigny photochemicalmodelingofmolecularandatomicoxygenbasedonmultiplenightglowemissionsmeasuredinsituduringtheenergytransferintheoxygennightglowrocketcampaign |
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