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| Titel |
Lake breezes in the southern Great Lakes region and their influence during BAQS-Met 2007 |
| VerfasserIn |
D. M. L. Sills, J. R. Brook, I. Levy, P. A. Makar, J. Zhang, P. A. Taylor |
| 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. 15 ; Nr. 11, no. 15 (2011-08-05), S.7955-7973 |
| Datensatznummer |
250009985
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| Publikation (Nr.) |
 copernicus.org/acp-11-7955-2011.pdf |
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| Zusammenfassung |
Meteorological observations from the BAQS-Met field experiment during the
summer months of 2007 were integrated and manually analyzed in order to
identify and characterize lake breezes in the southern Great Lakes region of
North America, and assess their potential impact on air quality. Lake
breezes occurred frequently, with one or more lake breezes identified on
90 % of study days. They affected all parts of the study region, including
southwestern Ontario and nearby portions of southeast Lower Michigan and
northern Ohio, with lake-breeze fronts occasionally penetrating from 100 km
to over 200 km inland. Occurrence rates and penetration distances were found
to be higher than previously reported in the literature. This comprehensive
depiction of observed lake breezes allows an improved understanding of their
influence on the transport, dispersion, and production of pollutants in this
region.
The observational analyses were compared with output from subsequent runs of
a high-resolution numerical weather prediction model. The model accurately
predicted lake breeze occurrence and type in a variety of synoptic wind
regimes, but selected cases showed substantial differences in the detailed
timing and location of lake-breeze fronts, and with the initiation of deep
moist convection. Knowledge of such strengths and weaknesses aids in the
interpretation of results from air quality models driven by this
meteorological model. |
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