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| Titel |
Long-memory processes in ozone and temperature variations at the region 60° S-60° N |
| VerfasserIn |
C. Varotsos, D. Kirk-Davidoff |
| 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 (2006-09-12), S.4093-4100 |
| Datensatznummer |
250004108
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| Publikation (Nr.) |
 copernicus.org/acp-6-4093-2006.pdf |
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| Zusammenfassung |
| Global column ozone and tropospheric temperature observations made by
ground-based (1964–2004) and satellite-borne (1978–2004) instrumentation are
analyzed. Ozone and temperature fluctuations in small time-intervals are
found to be positively correlated to those in larger time-intervals in a
power-law fashion. For temperature, the exponent of this dependence is
larger in the mid-latitudes than in the tropics at long time scales, while
for ozone, the exponent is larger in tropics than in the mid-latitudes. In
general, greater persistence could be a result of either stronger positive
feedbacks or larger inertia. Therefore, the increased slope of the power distribution
of temperature in mid-latitudes at long time scales compared to the slope in the
tropics could be connected to the poleward increase
in climate sensitivity predicted by the global climate models. The detrended
fluctuation analysis of model and observed time series provides a helpful tool
for visualizing errors in the treatment of long-range correlations, whose
correct modeling would greatly enhance confidence in long-term climate and
atmospheric chemistry modeling. |
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