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| Titel |
Comparison of ground-based FTIR and Brewer O3 total column with data from two different IASI algorithms and from OMI and GOME-2 satellite instruments |
| VerfasserIn |
C. Viatte, M. Schneider, A. Redondas, F. Hase, M. Eremenko, P. Chelin, J.-M. Flaud, T. Blumenstock, J. Orphal |
| 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 ; 4, no. 3 ; Nr. 4, no. 3 (2011-03-15), S.535-546 |
| Datensatznummer |
250001801
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| Publikation (Nr.) |
 copernicus.org/amt-4-535-2011.pdf |
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| Zusammenfassung |
| An intercomparison of ozone total column measurements derived from
various platforms is presented in this work. Satellite data from Infrared
Atmospheric Sounding Interferometer (IASI), Ozone Monitoring Instrument
(OMI) and Global Ozone Monitoring Experiment (GOME-2) are compared with data
from two ground-based spectrometers (Fourier Transform Infrared spectrometer
FTIR and Brewer), located at the Network for Detection of Atmospheric
Composition Change (NDACC) super-site of Izaña (Tenerife), measured
during a campaign from March to June 2009. These ground-based observing
systems have already been demonstrated to perform consistent, precise and
accurate ozone total column measurements. An excellent agreement between
ground-based and OMI/GOME-2 data is observed. Results from two different
algorithms for deriving IASI ozone total column are also compared: the
European Organisation for the Exploitation of Meteorological Satellites
(EUMETSAT/ESA) operational algorithm and the LISA (Laboratoire
Inter-universitaire des Systèmes Atmosphériques) algorithm. A better
agreement was found with LISA's analytical approach based on an
altitude-dependent Tikhonov-Philips regularization: correlations are 0.94
and 0.89 compared to FTIR and Brewer, respectively; while the operational
IASI ozone columns (based on neural network analysis) show correlations of
0.90 and 0.85, respectively, compared to the O3 columns obtained from
FTIR and Brewer. |
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