Open AccessA theoretical approach to the problem of visibility associated with Andhi - Part I: Settling of raised dust due to gravity
Author(s) -
Avinandan Mukherjee,
B. K. Basu
Publication year - 1982
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v33i2.3147
Subject(s) - visibility , settling , meteorology , environmental science , geology , atmospheric sciences , physics , environmental engineering
Joseph et at. (1980) have shown from instrumental observations the changes in visibility associated with Andhi, the convective duststorm of northwest India. In the present paper an attempt has been made to deduce the above from, theoretical consideration using a simple model of short period constant updraft at the gust front of approaching squall. The improvement of visibility by settling of dust due to gravity alone has been considered. Taking some realistic values the visibility variations have been shown to agree very well with the observed ones.