Accession Number : AD0768458

Title :   Estimating Atmosphere Turbidity According to Actinometric Data,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Rusina,E. N.

Report Date : 01 OCT 1973

Pagination or Media Count : 16

Abstract : Research indicated that in large cities (such as Leningrad and others) the average annual value of the turbidity factor is 13-28% greater than outside the city, while in the winter months the difference can reach 70%. In the autumn and spring a unique self-purifying of the air occurs in the cities in the middle latitudes, as a result of which the values of the turbidity factor approach those observed outside the city. The annual course of atmospheric turbidity in the cities is entirely different from that outside the city. Besides the maximum in the end of spring - beginning of summer, which is observed both in and out of the city, a second turbidity maximum is seen in the winter in cities, particularly those with a maritime climate.

Descriptors :   (*AIR POLLUTION, USSR), URBAN AREAS, SOLAR RADIATION, PERIODIC VARIATIONS, NUMERICAL ANALYSIS, WASTES(INDUSTRIAL), BACKGROUND, LIGHT TRANSMISSION

Subject Categories : Atmospheric Physics
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE