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Investigation of Upstream Boundary Layer Influence on Mountain Wave Breaking and Lee Wave Rotors Using a Large-Eddy Simulation
Publisher: American Meteorological Society
Abstract: Interactions between a turbulent boundary layer and nonlinear mountain waves are explored using a large-eddy simulation model. Simulations of a self-induced critical layer, which develop a stagnation layer and a strong ...
Numerical Simulation of Katabatic Flow with Changing Slope Angle
Publisher: American Meteorological Society
Abstract: A large eddy simulation (LES) model and the Advanced Regional Prediction System (ARPS) model, which does not resolve turbulent eddies, are used to study the effect of a slope angle decrease on the structure of katabatic ...
Effects of Inversion Height and Surface Heat Flux on Downslope Windstorms
Publisher: American Meteorological Society
Abstract: imulations are presented focusing on the role of temperature inversions in controlling the formation and strength of downslope wind storms. Three mechanisms are examined depending on the relative height of the inversion ...
Day-Ahead Predictability of Complex Terrain Flows for Wind Resource Production: A Case Study of the Washoe Zephyr
Publisher: American Meteorological Society
Abstract: detailed description of the meteorological conditions of the Washoe Valley (Nevada) and simulations that examine the predictability of the westerly high wind event known as the Washoe Zephyr are presented. Numerical weather ...
Characteristics of Sundowner Winds near Santa Barbara, California, from a Dynamically Downscaled Climatology: Environment and Effects near the Surface
Publisher: American Meteorological Society
Abstract: Abstract Sundowners are downslope windstorms that occur over the southern slopes of the east?west-trending Santa Ynez range in Santa Barbara County, California. In the past, many extreme fires in the area, including the ...
Evaluation of Catch Efficiency Transfer Functions for Unshielded and Single-Alter-Shielded Solid Precipitation Measurements
Publisher: American Meteorological Society
Abstract: AbstractSolid precipitation undercatch can reach 20%?70% depending on meteorological conditions, the precipitation gauge, and the wind shield used. Five catch efficiency transfer functions were selected from the literature ...
The Understanding Severe Thunderstorms and Alberta Boundary Layers Experiment (UNSTABLE) 2008
Publisher: American Meteorological Society
Abstract: understorms are a common occurrence in summer on the Canadian prairies, with a large number originating along the Alberta, Canada, foothills, just east of the Rocky Mountains. Most of these storms move eastward to affect ...
How Well Are We Measuring Snow: The NOAA/FAA/NCAR Winter Precipitation Test Bed
Publisher: American Meteorological Society
Abstract: r presents recent efforts to understand the relative accuracies of different instrumentation and gauges with various windshield configurations to measure snowfall. Results from the National Center for Atmospheric Research ...
How Well Are We Measuring Snow Post-SPICE?
Publisher: American Meteorological Society