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| Titel |
Optical properties of anthropogenic pollution and Saharan dust aerosols over the North-Western Mediterranean basin: airborne observations during the TRAQA 2012 campaign |
| VerfasserIn |
Claudia Di Biagio, Servanne Chevallier, Cécile Gaimoz, Noël Grand, Rodrigue Loisil, Jacques Pelon, François Ravetta, Sabrina Schnitt, Pascal Zapf, Paola Formenti |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250072028
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| Zusammenfassung |
| The Mediterranean basin is a very complex area where high concentrations of atmospheric
aerosols of different origin and types may be found.
The North-Western part of the Mediterranean basin, due to its closeness with high
polluted industrialized areas (such as the Po Valley and the Fos/Berre region) and
coastal high populated cities (such as Barcelona, Marseille, Nice, or Genes), is
frequently affected by severe pollution episodes. The strength of these episodes is
particularly intense during summer when stable meteorological conditions favour
the accumulation of pollutants in the lowermost atmospheric layers. In addition to
these phenomena, also the export of Saharan dust aerosols, which is more favoured
during summer in this part of the basin, strongly contributes to the high aerosol
load.
An intensive airborne campaign (TRAQA, TRansport and Air QuAlity) was conducted in
June-July 2012 over the North-Western Mediterranean basin with the SAFIRE ATR-42
aircraft. Observations performed during TRAQA have given the opportunity to analyse the
microphysical and optical properties of atmospheric aerosols in a large area of
the western Mediterranean basin (Gulf of Genes, western Corsica, Gulf of Lion,
north-eastern Spain). During the campaign the western Mediterranean basin was
interested by different synoptic conditions which lead to the export of anthropogenic
plumes from different polluted source regions (northern Italy and the Po Valley,
Marseille and the Fos/Berre region, and Barcelona), as well as to a strong Saharan dust
intrusion.
Measurements of the aerosol optical properties (scattering and backscattering coefficients
at 450, 550, and 700 nm with a TSI nephelometer; absorption coefficient at seven
wavelengths between 370 and 950 nm with a Magee Sci. aethalomether), size distribution
(PCASP, 0.1 μm |
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