OLR{1980)27(12) D. Marine Meteorology 879

equilibrium state of wind-wave interaction, incor- porating the effects of surface tension and viscosity with those of gravity is presented.' A suggestion is made for estimating stress coefficients at all wind velocities with a 'single, linear law empirical for- mula.' Previous wind stress estimates (Wu, 1979} show good agreement with study results. College of Marine Studies, University of Delaware, Newark, Del. 19711, U.S.A. (izs)

3. Chemistry of the atmosphere

80:5984 Budiansky, Stephen, 1980. Ozone modelling. En-

viron. Sci. Technol., 14(6): 645-647.

Chlorofluoromethanes release chlorine which reacts in a catalytic cycle to destroy stratospheric ozone. But with that as starting point, what really happens? Ozone modelling involves about a hun- dred chemical reactions on top of the problems of global transport, dispersion and time dependen- cies. Large discrepancies exist between modelled and measured quantities; the uncertainties are not likely to be quickly resolved. The problems are dis- cussed generally in this last of a series on at- mospheric modelling. (fcs)

80:5985 Huebert, B. J., 1980. Nitric acid and aerosol

ni t ra te measurements in the equatorial Pacific region. Geophys. Res. Letts, 7(5): 325- 328.

Surface nitric acid and part iculate nitrate 'background' measurements (impregnated filters) were made aboard R/V Knorr with the following results: an average acid mixing ratio of 38 pptv (10x that for noonday NO), highest mixing ratios (above 60 pptv) when rain showers were nearby, and particulate nitrate concentrations of 68 to 254 pptm. Depar tment of Chemistry, Colorado College, Colorado Springs, Colo. 80903, U.S.A. (fcs)

80:5986 Zafiriou, O. C., J. Alford, M. Herrera, E. T.

Peltzer, R. B. Gagosian and S. C. Liu, 1980. Formaldehyde in remote mar ine air and rain: flux measurements and estimates. Geophys. Res. Letts, 7(5): 341-344.

Formaldehyde at Enewetak Atoll in the equatorial Pacific probably originates solely from the methane oxidation chain. Concentrations there are among the lowest reported: 8:t:2 ug/kg in rain- water and about 0.5 ~g/m 3 in the gas phase. Rain- out flux to the sea is estimated at 0.010 g m-2 y-l ,

and gaseous flux at 0.05 g m -~ y-1. The measured mixing ratio is 0.18 ppbv--close to theoretical calculations. Woods Hole Oceanographic Institu- tion, Woods Hole, Mass. 02543, U.S.A. (fcs)

4. Climate and climatology

80:5987 Harington, C. R., ed., 1977/78. Climatic change

in Canada: National Museum of Natura l Sciences Project on Climatic Change in Canada during the past 20,000 years. SyUogeus, 26:246 pp.; 5 papers.

Canada, because of its high latitude, is especially sensitive to climatic change. For example, a return to temperature patterns of just 2 centuries ago would compel a 75% reduction of its grain exports. For the same reason, paleoclimatic events are rather more evident here, making Canada an es- pecially good study area. In consequence, the National Museum of Natural Sciences has in- stituted a Climatic Change Project, largely con- cerned with the past few hundred years, but studying changes occurring up to 20,000 years ago. These papers are part of the outgrowth of that project. Most of them document change; one dis- cusses the likely impact of future change. (fcs)

80:5988 Zillman, J. W., 1980. The World Climate

Programme. Search, 11(4): 108-111.

The Eighth World Meteorological Congress es- tablished the World Climate Programme in May 1978 to ' take full advantage of man's present knowledge . . . improve significantly that knowledge . . and foresee and prevent potential man-made changes in climate that might be a d v e r s e . . . ' The background to the W.C.P. is out- lined, as are its aims, scope and organization. Bureau of Meteorology, Melbourne, Australia. (fcs)

5. Clouds and fog 80:5989

Kunkel, B. A., 1980. Controlling fog. Weather- wise, 33(3): 117-119, 122-123. L. G. Hanscom Air Force Base, Bedford, Mass., U.S.A.

80:5990 Rothermel, Jeffry and E. M. Agee, 1980. Aircraft

investigation of mesoscale cellular convec- tion during AMTEX 75. J. atmos. Sci., 37(5): 1027-1040.