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Title: Trends in attenuation coefficients in Athens, Greece, from 1954 to 1991

Journal Article · · Journal of Applied Meteorology

Unsworth and Monteith`s attenuation coefficient T{sub UM} was calculated from midday cloudless sky data in Athens, Greece, for the period 1954 to 1991. An interdependence between T{sub UM} and the Linke factor T{sub L} was found and is expressed as a mathematical function. It was also shown that the minimum turbidity levels occur during the winter and maximum levels occur during summer. An analysis of the long-term variation of the attenuation coefficients depicts the deterioration of air quality during the same period. The dependence of the ratio of diffuse to global radiation on the attenuation coefficient T{sub UM}, is also presented. 26 refs., 4 figs., 1 tab.

OSTI ID:
160141
Journal Information:
Journal of Applied Meteorology, Vol. 34, Issue 6; Other Information: PBD: Jun 1995
Country of Publication:
United States
Language:
English