We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Aerosol pollution and its impact on regional climate during Holi festival inferred from ground-based and satellite remote sensing observations.
- Authors
Simha, C.; Devara, P.; Saha, S.
- Abstract
In this paper, we report some salient features from a suit of special experiments that have been conducted over a coastal site (Mumbai) during February 23-March 03, 2010, encompassing an Indian festival, namely Holi, using solar radiometers and pyranometer. The results of the analysis of observations at the experimental site show higher (more than double) aerosol optical depth, water vapor, and lower down-welling short-wave radiative flux during the festival period. This is considered to be due to anthropogenic activities and associated meteorological conditions at the experimental location. To illustrate further, Angstrom parameters (alpha, denoting the aerosol size distribution, and beta, representing the loading) are examined. These parameters are found to be greater on Holi day as compared to those on the normal (control, pre-, and post-Holi) days, suggesting an increase in accumulation mode (smaller size) particle loading. The aerosol size spectra exhibited bimodal/power-law distribution with a dominant peak, modulated by anthropogenic activities, involving local and long-range transport of dust and smoke (emanated from biomass-burning) aerosols, which is consistent with MODIS satellite observations. The aerosol direct radiative forcing estimation indicated cooling at the bottom of the atmosphere.
- Subjects
MUMBAI (India); ATMOSPHERIC aerosols &; the environment; HOLI (Hindu festival); REMOTE sensing; EFFECT of human beings on climate change; AIR pollutants; PYRANOMETER; RADIOMETERS; CITIES &; towns &; the environment
- Publication
Natural Hazards, 2013, Vol 69, Issue 1, p889
- ISSN
0921-030X
- Publication type
Article
- DOI
10.1007/s11069-013-0743-6