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| Titel |
Modelling the negative chlorine ion chemistry of the Earth's mesosphere |
| VerfasserIn |
Holger Winkler, Justus Notholt |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250071751
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| Zusammenfassung |
| An ion chemistry model is used to investigate the negative chlorine ion chemistry of the
mesosphere for quiet ionospheric conditions. Model results are presented for high latitudes in
February as well as for the equator in Summer. For nighttime, Cl-, Cl-(HCl), and
NO3-(HCl) are the most abundant chlorine anions in the mesosphere. The concentration of
ClO3- depends significantly on its stability against collision-induced dissociation. In contrast
to previous model predictions, the abundance of Cl-(H2O) is small. For daytime,
photoelectron detachment and photodissociation have pronounced impact on the negative
chlorine ion chemsitry in the mesosphere. The abundance of all anion cluster is considerably
smaller than at night. While Cl- decreases in the upper mesosphere, its abundance increases
at lower altitudes. |
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