Results of Five Years' Observations of Cloud Nucleus Concentration at Robertson, New South Wales
Open Access
- 1 April 1978
- journal article
- Published by American Meteorological Society in Journal of the Atmospheric Sciences
- Vol. 35 (4) , 650-656
- https://doi.org/10.1175/1520-0469(1978)035<0650:rofyoo>2.0.co;2
Abstract
Cloud nucleus concentration measurements made at hourly intervals between 1968 and 1973 at Robertson, N. S. W., show a very clear diurnal pattern with a maximum at approximately 1800 local time and a minimum at 0600 local time. It is suggested that photochemical reactions play a major role in the generation of cloud nuclei. A close examination of the data suggests that the long-term trend, while indicating a general increase in pollution levels, could as readily be interpreted as fluctuations with changes in local or global meteorological factors. A much greater period of observation would be required to decide the question.Keywords
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