1. Gross, E.: 1970, ‘The National Air Pollution Potential Forecast Program’, ESSA Tech. Memo. WBTM NMC 47, National Meteorological Center, Suitland, Maryland, 28 pp.
2. Hanna, S. R.: 1969, ‘The Thickness of the Planetary Boundary Layer’, Atmos. Envir. 3, 519–536.
3. Holzworth, G. C.: 1964, ‘Estimates of Mean Maximum Mixing Depths in the Contiguous United States’, Mon. Weather Rev. 92, 235–242.
4. Holzworth, G. C.: 1972, ‘Mixing Heights, Wind Speeds, and Potential for Urban Air Pollution throughout the Contiguous United States’, Office of Air Programs Publication No. AP-101, Environmental Protection Agency, Research Triangle Park, North Carolina, 118 pp.
5. Hsu, S. A.: 1973, ‘Dynamics of the Sea Breeze in the Atmospheric Boundary Layer: A Case Study of the Free Convection Regime’, Mon. Weather Rev. 101, 187–194.