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Indian Journal of Radio & Space Physics (IJRSP) >
IJRSP Vol.39 [2010] >
IJRSP Vol.39(2) [April 2010] >
| Title: | Interannual variability in time scale characteristics of aerosol optical thickness over Mysore, India |
| Authors: | Ganesh, K E
Umesh, T K
Narasimhamurthy, B |
| Keywords: | Atmospheric aerosols
Aerosol optical thickness (AOT)
Precipitable water vapour |
| Issue Date: | Apr-2010 |
| Publisher: | CSIR |
| PACS No.: | 92.60.Mt |
| Abstract: | The atmospheric measurements were carried
out to collect data on aerosol optical thickness (AOT) and precipitable water
vapour. A portable sunphotometer had been used to collect the required data.
Analysis of the collected data shows a diurnal, monthly and seasonal variation
in AOT and its correlation with rainfall. It was observed that AOT at shorter
wavelength decreases at higher rate than at longer wavelength. The effects such
as photosynthetic action and mixing layer phenomena contribute to the diurnal
variation of AOT. Minimum and maximum average spectral AOTs differ with respect
to month. Also in any aerosol year, AOTs are high during summer and increase
over the years. The winter records lower AOT values as compared to summer. The
consequences and causes for this type of variability in AOT characteristics have
been presented in the paper. |
| Page(s): | 80-91 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Source: | IJRSP Vol.39(2) [April 2010]
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