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| Titel |
Relative drifts and biases between six ozone limb satellite measurements from the last decade |
| VerfasserIn |
N. Rahpoe, M. Weber, A. V. Rozanov, K. Weigel, H. Bovensmann, J. P. Burrows, A. Laeng, G. Stiller, T. von Clarmann, E. Kyrölä, V. F. Sofieva, J. Tamminen, K. Walker, D. Degenstein, A. E. Bourassa, R. Hargreaves, P. Bernath, J. Urban, D. P. Murtagh |
| 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 ; 8, no. 10 ; Nr. 8, no. 10 (2015-10-16), S.4369-4381 |
| Datensatznummer |
250116643
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| Publikation (Nr.) |
 copernicus.org/amt-8-4369-2015.pdf |
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| Zusammenfassung |
| As part of European Space Agency's (ESA) climate change initiative, high vertical resolution ozone
profiles from three instruments all aboard ESA's Envisat (GOMOS, MIPAS,
SCIAMACHY) and ESA's third party missions (OSIRIS, SMR,
ACE-FTS) are to be combined in order to create an essential climate variable
data record for the last decade. A prerequisite before combining data is the
examination of differences and drifts between the data sets. In this paper, we
present a detailed analysis of ozone profile differences based on pairwise
collocated measurements, including the evolution of the differences with
time. Such a diagnosis is helpful to identify strengths and weaknesses of
each data set that may vary in time and introduce uncertainties in long-term
trend estimates. The analysis reveals that the relative drift between the
sensors is not statistically significant for most pairs of instruments. The
relative drift values can be used to estimate the added uncertainty in
physical trends. The added drift uncertainty is estimated at about
3 % decade−1 (1σ). Larger differences and variability in
the differences are found in the lowermost stratosphere (below 20 km) and in
the mesosphere. |
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