Abstract: A radiation model is used to examine the possible effects that the presence of pollutants, particularly aerosols and nitrogen dioxide, have on the thermal structure of the urban atmosphere. Discontinuities in the lapse ...

Abstract: Three models, based on methods of Brooks and Elsasser, and on transmission functions of Davis and Viezee, are used to compute the infrared surface flux and the flux divergence in the lower atmosphere. The three models are ...

Abstract: A numerical model based on the Eulerian conservation equation simulated the urban heat island in tropical, desert, mid-latitude and tundra climatic regimes in a two-dimensional mode. Data are based on typical climatological ...

Abstract: A numerical model of the planetary boundary layer, based on the Eulerian conservation equation, is used for two- and three-dimensional simulations of wind, temperature, specific humidity and pollutant concentration within ...

Abstract: The effect of pollutants, both gaseous and particulate, on the air temperature in the boundary layer is examined by computing their interaction with solar and infrared radiation. Carbon dioxide and large concentrations of ...

Abstract: A numerical solar radiation model based on standard meteorological data was revised for clouds using data from the GARP Atlantic Tropical Experiment (GATE). Climatic-mean transmittance functions were revised for low and ...

Abstract: Various numerical methods applied to Schwarzschild's equation have been found to produce solutions that exhibit pronounced two-grid-interval oscillations. Though such solutions remain bounded as the time integration proceeds, ...

Abstract: Data generated by a physically based solar radiation model, consisting of hourly values of total and direct-beam solar radiation, were computed at nearly 50 stations in the United States for the years 1971 and 1972. The ...

Abstract: A model for incoming solar radiation is developed for use with readily available meteorological data and is designed for efficiency and accuracy. Purameterizations are used to account for Rayleigh and Mie scattering and ...

Abstract: Hourly values of total solar radiation are computed by two methods at 11 stations in all regions of the United States for a two-year period. In the first method, precipitable water is computed from radiosonde observations ...