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| Titel |
Seasonal variability of aerosol optical properties observed by means of a Raman lidar at an EARLINET site over Northeastern Spain |
| VerfasserIn |
M. Sicard, F. Rocadenbosch, M. N. M. Reba, A. Comerón, S. Tomás, D. García-Vízcaino, O. Batet, R. Barrios, D. Kumar, J. M. Baldasano |
| 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 ; 11, no. 1 ; Nr. 11, no. 1 (2011-01-11), S.175-190 |
| Datensatznummer |
250009064
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| Publikation (Nr.) |
 copernicus.org/acp-11-175-2011.pdf |
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| Zusammenfassung |
| The annual and seasonal variability of aerosol optical properties observed
by means of a Raman lidar over Northeastern Spain has been assessed. The
lidar representativeness has first been checked against sun-photometer
measurements in terms of aerosol optical thickness. Then the annual cycle
and the seasonal variability of the planetary boundary layer aerosol optical
thickness and its fraction compared to the columnar optical thickness, the
lidar ratio, the backscatter-related Ångström exponent and the
planetary boundary layer height are analyzed and discussed. Winter and
summer mean profiles of extinction, backscatter and lidar ratio retrieved
with the Raman algorithm are presented. The analysis shows the impact of
most of the natural events (Saharan dust intrusions, wildfires, etc.) and
meteorological situations (summer anticyclonic situation, the formation of
the Iberian thermal low, winter long-range transport from North Europe
and/or North America, re-circulation flows, etc.) occurring in the Barcelona
area. A detailed study of a special event including a combined intrusion of
Saharan dust and biomass-burning particles proves the suitability of
combining the retrieval of aerosol optical properties from Raman and pure
elastic lidar measurements to discriminate spatially different types of
aerosols and to follow their spatial and temporal evolution. |
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