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| Titel |
Comparison of profile total ozone from SBUV (v8.6) with GOME-type and ground-based total ozone for a 16-year period (1996 to 2011) |
| VerfasserIn |
E. W. Chiou, P. K. Bhartia, R. D. McPeters, D. G. Loyola, M. Coldewey-Egbers, V. E. Fioletov, M. Van Roozendael, R. Spurr, C. Lerot, S. M. Frith |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 7, no. 6 ; Nr. 7, no. 6 (2014-06-11), S.1681-1692 |
| Datensatznummer |
250115816
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| Publikation (Nr.) |
 copernicus.org/amt-7-1681-2014.pdf |
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| Zusammenfassung |
This paper describes the comparison of the variability of total column ozone
inferred from the three independent multi-year data records, namely, (i) Solar Backscatter Ultraviolet Instrument (SBUV) v8.6
profile total ozone, (ii) GTO (GOME-type total ozone), and (iii) ground-based total ozone data records covering the 16-year overlap period
(March 1996 through June 2011). Analyses are conducted based on area-weighted
zonal means for 0–30° S, 0–30° N, 50–30° S,
and 30–60° N.
It has been found that, on average, the differences in monthly zonal mean
total ozone vary between −0.3 and 0.8 % and are well within 1%.
For GTO minus SBUV, the standard deviations and ranges (maximum minus
minimum) of the differences regarding monthly zonal mean total ozone vary
between 0.6–0.7% and 2.8–3.8% respectively, depending on the
latitude band. The corresponding standard deviations and ranges regarding
the differences in monthly zonal mean anomalies show values between 0.4–0.6% and 2.2–3.5%. The standard deviations and ranges of the
differences ground-based minus SBUV regarding both monthly zonal means
and anomalies are larger by a factor of 1.4–2.9 in comparison to GTO
minus SBUV.
The ground-based zonal means demonstrate larger scattering of monthly data
compared to satellite-based records. The differences in the scattering are
significantly reduced if seasonal zonal averages are analyzed.
The trends of the differences GTO minus SBUV and ground-based minus
SBUV are found to vary between −0.04 and 0.1% yr−1 (−0.1 and 0.3 DU yr−1). These negligibly small trends have provided strong evidence that
there are no significant time-dependent differences among these multi-year
total ozone data records.
Analyses of the annual deviations from pre-1980 level indicate that, for the
15-year period of 1996 to 2010, all three data records show a gradual increase
at 30–60° N from −5% in 1996 to −2% in 2010. In contrast, at
50–30° S and 30° S–30° N there has been a levelling off in the
15 years after 1996. The deviations inferred from GTO and SBUV show
agreement within 1%, but a slight increase has been found in the
differences during the period 1996–2010. |
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