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| Titel |
Influence of turbidity and clouds on satellite total ozone data over Madrid (Spain) |
| VerfasserIn |
J. L. Camacho, M. Antón, D. Loyola, E. Hernández |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 28, no. 7 ; Nr. 28, no. 7 (2010-07-14), S.1441-1448 |
| Datensatznummer |
250016859
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| Publikation (Nr.) |
 copernicus.org/angeo-28-1441-2010.pdf |
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| Zusammenfassung |
| This article focuses on the comparison of the total ozone column data from
three satellite instruments; Total Ozone Mapping Spectrometers (TOMS) on
board the Earth Probe (EP), Ozone Monitoring Instrument (OMI) on board AURA
and Global Ozone Monitoring Experiment (GOME) on board ERS/2, with
ground-based measurement recorded by a well calibrated Brewer
spectrophotometer located in Madrid during the period 1996–2008. A cluster
classification based on solar radiation (global, direct and diffuse),
cloudiness and aerosol index allow selecting hazy, cloudy, very cloudy and
clear days. Thus, the differences between Brewer and satellite total ozone
data for each cluster have been analyzed. The accuracy of EP-TOMS total
ozone data is affected by moderate cloudiness, showing a mean absolute bias
error (MABE) of 2.0%. In addition, the turbidity also has a significant
influence on EP-TOMS total ozone data with a MABE ~1.6%. Those
data are in contrast with clear days with MABE ~1.2%. The total
ozone data derived from the OMI instrument show clear bias at clear and hazy
days with small uncertainties (~0.8%). Finally, the total ozone
observations obtained with the GOME instrument show a very smooth dependence
with respect to clouds and turbidity, showing a robust retrieval algorithm
over these conditions. |
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