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- Title
Radiative Impact of Fireworks at a Tropical Indian Location: A Case Study.
- Authors
Singh, B. P.; Srivastava, A. K.; Tiwari, S.; Singh, S.; Singh, R. K.; Bisht, D. S.; Lal, D. M.; Singh, A. K.; Mall, R. K.; Srivastava, Manoj K.
- Abstract
During Diwali festival, extensive burning of crackers and fireworks is made. Weeklong intensive observational campaign for aerosol study was carried out at a representative urban location in the eastern Indo-Gangetic Plain (IGP), Varanasi (25.3°N, 83.0°E), from October 29 to November 04, 2005 (Diwali on November 01, 2005), to investigate behavioral change of aerosol properties and radiative forcing between firework affected and nonaffected periods. Results show a substantial increase (~27%) in aerosol optical depth, aerosol absorption coefficients, and aerosol scattering coefficients during affected period as compared to non-affected periods. Magnitudes of radiative forcing at top of atmosphere during affected and non-affected periods are found to be +10 ± 1 and +12 ± 1 Wm-2, respectively, which are -31 ± 7 and -17 ± 5 Wm-2, respectively, at surface. It suggests an additional cooling of ~20% at top of atmosphere, ~45% cooling at surface, and additional atmospheric heating of 0.23 Kday-1 during fireworks affected period, which is ~30% higher than the non-affected period average.
- Subjects
FIREWORKS; ATMOSPHERIC aerosols; URBAN ecology (Sociology); SURFACE cooling; OPTICAL depth (Astrophysics); ABSORPTION coefficients
- Publication
Advances in Meteorology, 2014, p1
- ISSN
1687-9309
- Publication type
Article
- DOI
10.1155/2014/197072