Abstract: Daily (24 h) and hourly air quality data at several sites are used to examine the performance of the fifth-generation Pennsylvania State University?NCAR Mesoscale Model (MM5)?Community Multiscale Air Quality Model (CMAQ) ...

Abstract: Data on atmospheric levels of sulfur dioxide (SO2) and sulfate were examined to quantify changes since 1989. Changes in sulfur species were adjusted to account for meteorological variability. Adjustments were made using ...

Abstract: Ambient ozone data collected at two sites in the Great Smoky Mountains National Park (GSMNP) are summarized and compared with data from an urban and a low-elevation rural site. The ozone climatology in the park is found ...

Abstract: Forty-five tetroon flights made during the summer of 1980 for the PEPE/NEROS regions pollution studies, sponsored by the U.S. Environmental Protection Agency, were compared to computed trajectories based on National Weather ...

Abstract: A limited-area spectral model?the Regional Spectral Model?developed at the National Centers for Environmental Prediction is used to prepare daily quantitative precipitation forecasts out to 48 h for the Tennessee and ...

Abstract: study of fugitive dust emissions from a pile of crushed coal revealed that, in addition to dust being emitted into the atmosphere during periods of pile-management (human) activity, it is also emitted during periods without ...

Abstract: An optimal model output calibration (MOC) algorithm suitable for surface air temperature forecasts is proposed and tested with the National Centers for Environmental Prediction Regional Spectral Model (RSM). Differing from ...

Abstract: Airflow patterns and pollution transport in the southern Appalachian Mountains region of the southeastern United States are examined using mesoscale meteorological models and a Lagrangian particle dispersion model (LPDM). ...