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| Titel |
Validation of nine years of MOPITT V5 NIR using MOZAIC/IAGOS measurements: biases and long-term stability |
| VerfasserIn |
A. T. J. de Laat, I. Aben, M. Deeter, P. Nédélec, H. Eskes, J.-L. Attié, P. Ricaud, R. Abida, L. El Amraoui, J. Landgraf |
| 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. 11 ; Nr. 7, no. 11 (2014-11-18), S.3783-3799 |
| Datensatznummer |
250115951
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| Publikation (Nr.) |
 copernicus.org/amt-7-3783-2014.pdf |
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| Zusammenfassung |
| Validation results from a comparison between Measurement Of Pollution In The
Troposphere (MOPITT) V5 Near InfraRed (NIR) carbon monoxide (CO) total
column measurements and Measurement of Ozone and Water Vapour on Airbus
in-service Aircraft (MOZAIC)/In-Service Aircraft for a Global Observing
System (IAGOS) aircraft measurements are presented. A good agreement is
found between MOPITT and MOZAIC/IAGOS measurements, consistent with results
from earlier studies using different validation data and despite large
variability in MOPITT CO total columns along the spatial footprint of the
MOZAIC/IAGOS measurements. Validation results improve when taking the large
spatial footprint of the MOZAIC/IAGOS data into account. No statistically
significant drift was detected in the validation results over the period
2002–2010 at global, continental and local (airport) scales. Furthermore,
for those situations where MOZAIC/IAGOS measurements differed from the
MOPITT a priori, the MOPITT measurements clearly outperformed the MOPITT a
priori data, indicating that MOPITT NIR retrievals add value to the MOPITT a
priori. Results from a high spatial resolution simulation of the
chemistry-transport model MOCAGE (MOdèle de Chimie Atmosphérique
à Grande Echelle) showed that the most likely explanation for the large
MOPITT variability along the MOZAIC-IAGOS profile flight path
is related to
spatio-temporal CO variability, which should be kept in mind when using
MOZAIC/IAGOS profile measurements for validating satellite nadir
observations. |
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