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http://nopr.niscpr.res.in/handle/123456789/25810| Title: | Atmospheric aerosols and air pollution |
| Authors: | Raju, N V Prasad, B S N Narasimhamurthy, B |
| Keywords: | Aerosol;Optical depth;Air pollution |
| Issue Date: | Oct-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Multiwavelength radiometer measurement of aerosol optical depth (AOD) at ten wavelengths in the visible and near IR is an ongoing programme since 1988 at Mysore (12°N, 76°E), a semi-urban continental area with a population of about 1 million. The analysis of 10-yr data indicates an increase in the spectral AOD which is attributed to the increased air pollution resulting from anthropogenic activities. The pollution related aerosol turbidity parameters α and β are determined graphically from AOD. The size-dependent parameter α shows a decrease initially and later on an increase. The number density parameter β remains almost a constant throughout the data period. Aerosol size spectrum is retrieved by numerically inverting the AODs, and the aerosol characteristics are estimated. These indicate that a depends on the number of accumulation mode particles, and β on the mass loading. |
| Page(s): | 306-311 |
| ISSN: | 0975-105X (Online); 0367-8393 (Print) |
| Appears in Collections: | IJRSP Vol.32(5) [October 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJRSP 32(5) 306-311.pdf | 3.86 MB | Adobe PDF | View/Open |
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