Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.509 IF 5.509
  • IF 5-year value: 5.689 IF 5-year 5.689
  • CiteScore value: 5.44 CiteScore 5.44
  • SNIP value: 1.519 SNIP 1.519
  • SJR value: 3.032 SJR 3.032
  • IPP value: 5.37 IPP 5.37
  • h5-index value: 86 h5-index 86
  • Scimago H index value: 161 Scimago H index 161
Volume 11, issue 15 | Copyright

Special issue: The Border Air Quality and Meteorology Study (BAQS-Met)

Atmos. Chem. Phys., 11, 7955-7973, 2011
https://doi.org/10.5194/acp-11-7955-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 05 Aug 2011

Research article | 05 Aug 2011

Lake breezes in the southern Great Lakes region and their influence during BAQS-Met 2007

D. M. L. Sills1, J. R. Brook2, I. Levy2, P. A. Makar2, J. Zhang2, and P. A. Taylor3 D. M. L. Sills et al.
  • 1Cloud Physics and Severe Weather Research Section, Environment Canada, Toronto, Ontario, Canada
  • 2Air Quality Research Division, Science and Technology Branch, Environment Canada, Toronto, Ontario, Canada
  • 3Department of Earth and Space Science and Engineering, York University, Toronto, Ontario, Canada

Abstract. 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.

Download & links
Publications Copernicus
Special issue
Download
Citation
Share