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Spatiotemporal Trends in Episodic Ozone Pollution in the Lower Fraser Valley, British Columbia, in Relation to Mesoscale Atmospheric Circulation Patterns and Emissions
Publisher: American Meteorological Society
Abstract: A cluster analysis of wind measurements from two meteorological stations in the Lower Fraser Valley, British Columbia, Canada, has been performed to identify mesoscale circulation regimes that are common to days on which ...
Enhancement of Crosswind Pollutant Dispersion by Steadily Veering Winds in Sea Breezes
Publisher: American Meteorological Society
Abstract: An estimate is given of the relative importance of wind veering and turbulent diffusion in the mean horizontal spread of pollutant plumes in the atmosphere. Documented veering rates in sea breezes are used to illustrate ...
Formulation of an Index for Sea Breezes in Opposing Winds
Publisher: American Meteorological Society
Abstract: A scaling analysis is conducted to explore the dependence of sea-breeze speed and inland occurrence in the presence of opposing winds on a set of dynamical parameters. The overall aim of the analysis is to develop an index ...
The Dynamics of Coastally Trapped Mesoscale Ridges in the Lower Atmosphere
Publisher: American Meteorological Society
Abstract: The dynamics of coastally trapped ridges that propagate in the marine layers of western North America and southeastern Australia is examined. A nonlinear semigeostrophic theory shows that the coastal ridges develop initially ...
Gap Winds in a Fjord. Part II: Hydraulic Analog
Publisher: American Meteorological Society
Abstract: A simple shallow-water model of gap wind in a channel that is based upon hydraulic theory is presented and compared with observations and output from a 3D mesoscale numerical model. The model is found to be successful in ...
An Automated Radiometer Traversing System for Use in a Model Urban Canyon
Publisher: American Meteorological Society
Abstract: The design of an automated radiometer traversing system used to measure nocturnal longwave surface radiative budgets in a model urban canyon is described. The system allows two net radiometers to be traversed around the ...
Application of Two-Dimensional Terrain Height Spectra to Mesoscale Modeling
Publisher: American Meteorological Society
Abstract: A caution is offered with regard to the use of one-dimensional terrain spectra to indicate the grid resolution needed to resolve terrain forcing in mesoscale numerical modeling exercises. To illustrate this, two-dimensional ...
Quantitative and Qualitative Evaluation of a Three-Dimensional Mesoscale Numerical Model Simulation of a Sea Breeze in Complex Terrain
Publisher: American Meteorological Society
Abstract: This study presents an evaluation of the performance of the Colorado State University (CSU) three-dimensional numerical mesoscale model. The evaluation consists of quantitative and qualitative comparisons of the model ...