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Overwater Atmospheric Diffusion: Measurements and Parameterization
Publisher: American Meteorological Society
Abstract: A series of ten atmospheric tracer experiments provided 62 hours of overwater atmospheric dispersion data. Sulfur hexafluoride (SF6) was released as the tracer gas at a height of 13 m from a ship positioned about 7 km off ...
Wind Disturbance by a Vertical Cylinder in the Atmospheric Surface Layer
Publisher: American Meteorological Society
Abstract: The velocity distribution in the neighborhood of a cylindrical obstacle was measured over the frozen surface of Lake Mendota, Madison, Wis. Non-dimensional isotach patterns were constructed depicting the velocity distribution ...
Tower-Induced Errors in Wind Profile Measurements
Publisher: American Meteorological Society
Abstract: An investigation of the effect of a meteorological tower on the measurement of wind speed was conducted at Brookhaven National Laboratory. Reductions up to 35% occur in the wake. The distribution of the velocity deficit ...
Research Opportunities from Emerging Atmospheric Observing and Modeling Capabilities
Publisher: American Meteorological Society
Abstract: The Second Prospectus Development Team (PDT-2) of the U.S. Weather Research Program was charged with identifying research opportunities that are best matched to emerging operational and experimental measurement and modeling ...
Comparison of Two Practical Atmospheric Stability Classification Schemes in an Urban Application
Publisher: American Meteorological Society
Abstract: Two atmospheric stability classification schemes have been applied using National Weather Service data from Lambert Field in St. Louis. The results are compared with wind direction fluctuation and insolation measurements ...
Fractal Geometry of Isoconcentration Surfaces in a Smoke Plume
Publisher: American Meteorological Society
Abstract: The fractal properties of isoconcentration surfaces in a smoke plume are studied in an atmospheric boundary layer wind tunnel. Instantaneous high-resolution two-dimensional images of the fine particle concentration at ...