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| Titel |
Differences between ground Dobson, Brewer and satellite TOMS-8, GOME-WFDOAS total ozone observations at Hradec Kralove, Czech |
| VerfasserIn |
K. Vanicek |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 6, no. 12 ; Nr. 6, no. 12 (2006-11-14), S.5163-5171 |
| Datensatznummer |
250004176
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| Publikation (Nr.) |
 copernicus.org/acp-6-5163-2006.pdf |
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| Zusammenfassung |
| This paper presents key results achieved by an analysis of the relation
between high-quality simultaneous Dobson, Brewer ground and TOMS-V8,
GOME-WFDOAS satellite total ozone observations for Hradec Kralove, Czech
Republic. Statistically significant seasonal differences with maxima up to
4% of monthly averages have been found between Dobson and Brewer
measurements during the winter/spring months. These differences can
influence estimations of ozone trends if combined data series are used after
replacing a Dobson instrument by a Brewer spectrophotometer. The differences
can be attributed mostly to the influence of temperature on ozone absorption
coefficients and to total sulphur dioxide. Similar seasonal differences
exist between Dobson, GOME and Brewer, TOMS data sets at Hradec Kralove
while Dobson versus TOMS and Brewer versus GOME observations fit well with
each other within the instrumental accuracy of spectrophotometers. The above
findings are supposed to be relevant to other mid and high latitude stations
and they have been confirmed by several independent analyses. The
conclusions should be considered by data users because the differences
between particular ground and satellite data sets can influence validation
of satellite ozone observing systems and analyses of recovery of the ozone
layer in mid and high latitudes, among others. |
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