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| Titel |
Characterization of aerosol pollution events in France using ground-based and POLDER-2 satellite data |
| VerfasserIn |
M. Kacenelenbogen, J.-F. Léon, I. Chiapello, D. Tanré |
| 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 (2006-10-26), S.4843-4849 |
| Datensatznummer |
250004157
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| Publikation (Nr.) |
 copernicus.org/acp-6-4843-2006.pdf |
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| Zusammenfassung |
| We analyze the relationship between daily fine particle mass concentration
(PM2.5) and columnar aerosol optical thickness derived from the Polarization
and Directionality of Earth's Reflectances (POLDER) satellite sensor. The
study is focused over France during the POLDER-2 lifetime between April and
October 2003. We have first compared the POLDER derived aerosol optical
thickness (AOT) with integrated volume size distribution derived from
ground-based Sun Photometer observations. The good correlation (R=0.72) with
sub-micron volume fraction indicates that POLDER derived AOT is sensitive to
the fine aerosol mass concentration. Considering 1974 match-up data points
over 28 fine particle monitoring sites, the POLDER-2 derived AOT is fairly
well correlated with collocated PM2.5 measurements, with a correlation
coefficient of 0.55. The correlation coefficient reaches a maximum of 0.80
for particular sites. We have analyzed the probability to find an
appropriate air quality category (AQC) as defined by U.S. Environmental
Protection Agency (EPA) from POLDER-2 AOT measurements. The probability can
be up to 88.8% (±3.7%) for the "Good" AQC and 89.1% (±3.6%) for the "Moderate" AQC. |
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