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| Titel |
Analysis and improvement of SCIAMACHY limb data for tropospheric ozone retrieval |
| VerfasserIn |
Jia Jia, Annette Ladstätter-Weißenmayer, Alexei Rozanov, Felix Ebojie, Stefan Bötel, John Burrows |
| 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 |
250082515
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| Zusammenfassung |
| Pollution events have a great influence on the atmosphere. During these pollution events, ozone precursors such as carbon monoxide (CO), nitrogen oxides (NOx), methane (CH4), and other hydrocarbons are emitted. With chemical chain reaction, tropospheric ozone is photochemically produced [Jenkin, Clemitshaw, 2000] and influence large region due to its long lifetime.
SCIAMACHY has produced over the past 10 years a unique set of database [Bovensmann et al., 1999]. Based on SCIAMACHY measurements, tropospheric ozone is retrieved by using the limb-nadir matching (LNM) technique [Sierk, Richter et al., 2006]. The focus of this study is the improvement of SCIAMACHY limb profiles with respect to optimise the retrieval of stratospheric ozone amount to get finally a more accurate tropospheric ozone product. Results show limb profile improvements in different altitude layers. The comparison with ozonesonde demonstrates a decline of differences of about 5 ~ 15 DU in stratospheric ozone amount, hence a significant average up of retrieval accuracy. |
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