| || A Fresh Approach to the Study of Atmosphere Turbidity
Author : Majumdar, N.C.;Garg, O.P.;Agarwal, B.K.
Source : Defence Science Journal ; Vol:28(4) ; 1978 ; pp 167-174
Subject : 551.5 Meteorology
Keywords : Aerosol Particles;Water Vapour;Linke's Turbidity Factor;Rational Turbidity Factor
Abstract : The problem of assessment of atmospheric turbidity caused by aerosol particles, viz., dust, smoke, haze, and other atmospheric pollutants, apart from the effect of variable water vapour content of the atmosphere, has been studied afresh. The basic concept underlying Linke's turbidity factor, T has been found to be theoretically sound, although its quantitative formulation suffers from one major defect, viz, its 'virtual variation' with air mass. This error has been traced to defective formulation of the quantitative expression for T. A 'Rational turbidity factor', Tr, has been proposed which is likely to overcome the limitations of Linke's turbidity factor, T. A nomogram has been development for quick evaluation of Tr, and the effect of altitude has also been considered.
| || Diffuse Sky Radiation in a Dry Turbid Atmosphere
Author : Gupta, R.A.;Agarwal, B.K.
Source : Defence Science Journal ; Vol:34(3) ; 1984 ; pp 275-284
Subject : 551.5 Meteorology;551 Geology
Keywords : Atmospheric Turbidity;Diffuse Sky Radiation;Dry Atmosphere
Abstract : Development of a simple method for the assessment of atmospheric turbidity all over the country in all seasons has been attempted. We have been able to derive a reasonably reliable equation relating diffuse sky radiation D/sub r/ on a horizontal surface to air mass M/Sub r/ and Angstrom schuepp turbidity coefficient B, in a dry atmosphere with constant albedo (A=0.25) of the terrain.