Radiological and Environmental Research Division. Annual report, January-December 1978

The programs addressed by this Section's research activities continue to evolve. Work on dispersion over water near shorelines has grown to include a large component investigating the flux of pollutants to the surface. Early studies of thermal exchange from heated water surfaces led to a current emphasis on steam fog and on the exchange of gases across an air-water interface. Work on the optical and radiative effects of air pollutants commenced under the Multistate Atmospheric Power Production Pollution Study (MAP3S) and led to the operation of a network of atmospheric turbidity stations during 1977 and 1978. A highlight of the past year has been the success attained by several modeling programs. For example, second-order closure schemes have been applied to a number of practical questions and are now being used in studies of flow over complex terrain. Individual entries were made for the various sections of the report