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| Titel |
Long-term time series of ozone at Observatoire de Haute-Provence (OHP), 44âN, 6âE |
| VerfasserIn |
A. Griesfeller, S. Godin-Beekmann, P. Gopalapillai, F. Goutail, F. Hendrick, D. Ionov, A. Pazmino, I. Petropavlovskikh, J.-P. Pommereau, M. Van Roozendael |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250027320
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| Zusammenfassung |
| At Observatoire de Haute-Provence (OHP - 44-N, 6-E), an NDACC (Network for the
Detection of Atmospheric Composition Change) station with several instruments, the
stratospheric ozone distribution has been monitored by Lidar (Light Detection and Ranging)
measurements since 1985 and by SAOZ (Système d’Analyse par Observation Zénithale)
measurements since 1992.
The Lidar at OHP uses the Differential Absorption Lidar (DIAL) technique to derive
ozone. From 1985 to 1993, an average of 50 Lidar profiles per year was obtained in the 18 -–
45Â km altitude range. After a major experimental improvement in 1993, the frequency of the
measurements increased to 110 per year in average. SAOZ is a ground-based UV-Visible
zenith-sky spectrometer installed at a number of NDACC stations at all latitudes around the
world. The instrument is measuring ozone and NO2 total columns twice a day at
sunrise and sunset using the Differential Optical Absorption Spectroscopy (DOAS)
technique.
The evolution of stratospheric ozone at OHP is analysed using the Lidar and SAOZ ozone
time series together with other long-term time series like Dobson-Umkehr ozone profile
observations at the same station or satellite measurements for total columns in the vicinity of
OHP. |
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