Ozone trend and haze scattering

Abstract Direct sun observations made with Dobson spectrophotometers at Darwin, Brisbane, Aspendale and Macquarie Island in Australia are used to assess the changing character of haze in the atmosphere using ( X AD — X A ) values which represent the large particle (larger than air molecules) scatter...

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Bibliographic Details
Published in:Quarterly Journal of the Royal Meteorological Society
Main Author: Kulkarni, R. N.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1973
Subjects:
Online Access:http://dx.doi.org/10.1002/qj.49709942107
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49709942107
https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49709942107
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Summary:Abstract Direct sun observations made with Dobson spectrophotometers at Darwin, Brisbane, Aspendale and Macquarie Island in Australia are used to assess the changing character of haze in the atmosphere using ( X AD — X A ) values which represent the large particle (larger than air molecules) scattering. It has been observed that at Darwin and Brisbane ( X AD — X A ) decreases from 1960 to 1970 implying that the smaller size particles are increasing in number in relation to larger size particles. An assessment of the error in the calculation of ozone by this gradual change of haze scattering in the last decade has been made. It is estimated that about 53 per cent of the observed change in X AD value at Brisbane is possibly due to changing haze pattern.