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| Titel |
Meteorology during the DOMINO campaign and its connection with trace gases and aerosols |
| VerfasserIn |
J. A. Adame, M. Martinez, M. Sorribas, P. J. Hidalgo, H. Harder, J.-M. Diesch, F. Drewnick, W. Song, J. Williams, V. Sinha, M. A. Hernández-Ceballos, J. Vilà-Guerau de Arellano, R. Sander, Z. Hosaynali-Beygi, H. Fischer, J. Lelieveld  , B. De la Morena |
| 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 ; 14, no. 5 ; Nr. 14, no. 5 (2014-03-05), S.2325-2342 |
| Datensatznummer |
250118462
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| Publikation (Nr.) |
 copernicus.org/acp-14-2325-2014.pdf |
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| Zusammenfassung |
| The DOMINO (Diel Oxidant Mechanisms in relation to Nitrogen Oxides) campaign
was carried out from 21 November to 8 December 2008 at the El Arenosillo station
(SW of Spain) in a coastal-rural environment. The main weather conditions are
analysed using local meteorological variables, meteorological soundings and
synoptic maps, as well as back trajectories of the air masses using the
HYSPLIT (Hybrid Single-Particle Lagrangian Integrated Trajectory Model) model and a high spatial resolution of meteorological fields.
Measurements of the main meteorological parameters were collected both from the
surface and from a tall tower. A detailed land use analysis was performed on a
80 km scale showing the main types of vegetation and land use. Also the main
anthropogenic atmospheric emission sources – both industrial-urban from Huelva
and from the urban Seville area – are shown. A study to identify air mass
origins and their variation with height was carried out. In this intensive
campaign, air masses coming from different areas with different emission
sources were observed: from the NW, with a highly industrial-urban character;
continental flows from northerly directions; from the NE, with a pathway
starting
over the Seville metropolitan area and then continuing over the Doñana
National Park; and maritime air masses coming from the Atlantic Ocean. To
study the chemistry in the four atmospheric scenarios identified, gas -phase
measurements of primary and secondary species such as ozone, NO, NO2 and
SO2, biogenic and anthropogenic VOCs (volatile organic compounds) like benzene and isoprene, as well
as total particle concentration and chemical composition of the aerosols are
compared and discussed. The highest levels for total particle concentration,
NO, NO2, SO2, benzene, PM10, PM2.5 and chemical elements
such as As or Cu were found under flows associated with industrial-urban
emissions from the Huelva–Portugal sector which are transported to the site
before significant removal by chemical or deposition mechanism can occur. The
air masses from the north were affected mainly by crustal elements and
biogenic sources, the latter being exemplified by the biogenic species such
as isoprene, particularly in the first part of the campaign. The urban air
from the Seville area, before arriving at El Arenosillo, traversed the
Doñana National Park and therefore was affected by industrial-urban and
biogenic emissions. This aged air parcel can transport low levels of
NOx, total particle concentration and SO2 as well as ozone and
isoprene. Marine air masses from the Atlantic Ocean influence El Arenosillo
frequently. Under these conditions, the lowest levels of almost all the
species – with the exception of ozone levels associated to
long-range transport – were measured. |
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