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RISObservations of Pressure Jump Lines in the Midwest, 10–12 August 1976
Publisher: American Meteorological Society
Abstract: Strong thunderstorm activity over Iowa on two successive afternoons was the apparent source of pressure-jump lines (PJL's) which moved SSE at 50 km h?1 through the nocturnal boundary layer and were detected by National ...
Examining Photolysis Rates with a Prototype Online Photolysis Module in CMAQ
Publisher: American Meteorological Society
Abstract: A prototype online photolysis module has been developed for the Community Multiscale Air Quality (CMAQ) modeling system. The module calculates actinic fluxes and photolysis rates (j values) at every vertical level in each ...
Use of Four-Dimensional Data Assimilation in a Limited-Area Mesoscale Model Part II: Effects of Data Assimilation within the Planetary Boundary Layer
Publisher: American Meteorological Society
Abstract: A four-dimensional data assimilation (FDDA) scheme based on Newtonian relaxation or nudging has been developed and evaluated in the Pennsylvania State University/National Center for Atmospheric Research (PSU/NCAR) Limited-Area ...
Highway Modeling. Part II: Advection and Diffusion of SF6 Tracer Gas
Publisher: American Meteorological Society
Abstract: A finite-difference highway model is presented which uses surface layer similarity theory and a vehicle wake theory to determine the atmospheric structure along a roadway. Surface similarity is used to determine the wind ...