 |
| Titel |
Impact of using different ozone cross sections on ozone profile retrievals from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements |
| VerfasserIn |
X. Liu, K. Chance, C. E. Sioris, T. P. Kurosu |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 7, no. 13 ; Nr. 7, no. 13 (2007-07-06), S.3571-3578 |
| Datensatznummer |
250005124
|
| Publikation (Nr.) |
 copernicus.org/acp-7-3571-2007.pdf |
|
|
|
|
|
| Zusammenfassung |
| We investigate the effect of using three different cross
section data sets on ozone profile retrievals from Global Ozone Monitoring
Experiment (GOME) ultraviolet measurements (289–307 nm, 326–337 nm). These
include Bass-Paur, Brion, and GOME flight model cross sections (references
below). Using different cross sections can significantly affect the
retrievals, by up to 12 Dobson Units (DU, 1 DU=2.69×1016 molecules
cm−2) in total column ozone, up to 10 DU in tropospheric
column ozone, and up to 100% in retrieved ozone values for individual
atmospheric layers. Compared to using the Bass-Paur and GOME flight model
cross sections, using the Brion cross sections not only reduces fitting
residuals by 15–60% in the Huggins bands, but also improves retrievals,
especially in the troposphere, as seen from validation against ozonesonde
measurements. Therefore, we recommend using the Brion cross section for
ozone profile retrievals from ultraviolet measurements. The total column
ozone retrieved using the GOME flight model cross sections is systematically
lower, by 7–10 DU, than that retrieved using the Brion and Bass-Paur cross
sections and is also systematically lower than Total Ozone Mapping
Spectrometer (TOMS) observations. This study demonstrates the need for
improved ozone cross section measurements in the ultraviolet to improve
profile retrievals of this key atmospheric constituent. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|