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RISForecasts of Valley Circulations Using the Terrain-Following and Step-Mountain Vertical Coordinates in the Meso-Eta Model
Publisher: American Meteorological Society
Abstract: The nonhydrostatic version of the NCEP Meso-Eta Model is used to perform simulations that differ by only the vertical coordinate to determine the differences in forecasted valley circulations associated with the step-mountain ...
An Evaluation of the MM5, RAMS, and Meso-Eta Models at Subkilometer Resolution Using VTMX Field Campaign Data in the Salt Lake Valley
Publisher: American Meteorological Society
Abstract: This study presents what is, to the authors' knowledge, the first intercomparison and evaluation of three state-of-the-art mesoscale numerical models, the fifth-generation Pennsylvania State University?NCAR Mesoscale Model ...
A Two-Dimensional Numerical Sensitivity Study of the Great Plains Low-Level Jet
Publisher: American Meteorological Society
Abstract: Observations have shown the existence of a diurnal oscillation of the wind profile in the springtime boundary layer of the central United States called the Great Plains low-level jet. This low-level jet is a mesoscale ...
The Effect of Heterogeneous Soil Moisture on a Summer Baroclinic Circulation in the Central United States
Publisher: American Meteorological Society
Abstract: Thermally induced circulations, similar to sea breezes, may be established in the presence of horizontal gradients in soil moisture, soil type, vegetation, or snow cover. The expense of extensive observational networks and ...
A Case Study of the Great Plains Low-Level Jet Using Wind Profiler Network Data and a High-Resolution Mesoscale Model
Publisher: American Meteorological Society
Abstract: A detailed case study of one complete episode of a typical summertime Great Plains low-level jet (LLJ) using data collected by the NOAA wind profiler demonstration network is presented. The high temporal and spatial ...
The Effect of Lake Temperatures and Emissions on Ozone Exposure in the Western Great Lakes Region
Publisher: American Meteorological Society
Abstract: A meteorological?chemical model with a 12-km horizontal grid spacing was used to simulate the evolution of ozone over the western Great Lakes region during a 30-day period in the summer of 1999. Lake temperatures in the ...
An Evaluation of Mesoscale Model Predictions of Down-Valley and Canyon Flows and Their Consequences Using Doppler Lidar Measurements during VTMX 2000
Publisher: American Meteorological Society
Abstract: A mesoscale model, a Lagrangian particle dispersion model, and extensive Doppler lidar wind measurements during the Vertical Transport and Mixing (VTMX) 2000 field campaign were used to examine converging flows over the ...
Pseudovertical Temperature Profiles and the Urban Heat Island Measured by a Temperature Datalogger Network in Phoenix, Arizona
Publisher: American Meteorological Society
Abstract: As part of an air-quality field campaign conducted in Phoenix, Arizona, during the summer of 2001, a network of temperature dataloggers and surface meteorological stations was deployed across the metropolitan area for a ...
Boundary Layer Evolution within a Canyonland Basin. Part II: Numerical Simulations of Nocturnal Flows and Heat Budgets
Publisher: American Meteorological Society
Abstract: A mesoscale model is used to simulate the nocturnal evolution of the wind and temperature fields within a small, elliptical basin located in western Colorado that has a drainage area of about 84 km2. The numerical results ...
The Role of Cloud–Cloud Interactions in the Life Cycle of Shallow Cumulus Clouds
Publisher: American Meteorological Society