Seasonal variations of aerosol over Dona Paula, a coastal site on the west coast of India

Estimation of the effect of long-range transport on seasonal variation of aerosols over northeastern India

“…Individual measurements (e.g. Moorthy et al, 1988Moorthy et al, , 1989Jayaraman et al, 1993;Satheesh et al, 2001;Devara et al, 2001;Sharma et al, 2003;Suresh et al, 2005, Moorthy et al, 1993Niranjan et al, 2004;Sagar et al, 2004;Bhuyan et al, 2005 etc. ) and coordinated field campaigns, such as the INDOEX (e.g.…”

Contrasting aerosol characteristics and radiative forcing over Hyderabad, India due to seasonal mesoscale and synoptic‐scale processes

“…The results reveal a rather significant monthly variation with high values during the period March-June and decreasing towards the post-monsoon (October-November) and winter (December-February) seasons. The annual mean AOD 500 over the two-year period is found to be 0.52 ± 0.23, slightly lower than that reported by Kaskaoutis et al (2009) for the urban region of Hyderabad (0.57 ± 0.22) but significantly higher than those at other Indian cities not so industrialized (Suresh and Desa, 2005;Moorthy et al, 2007;Pantithurai et al, 2007;Gogoi et al, 2009). An interesting feature is the different monthly variation in the spectral AODs suggesting difference in the aerosol load and particle size.…”

“Observations on Aerosol Optical Depth Over a Period of 3 Years at Kaikhali (22.022°N, 88.614°E) Inside a Special Mangrove Ecosystem—The Sundarbans”

“…The value of the angstrom exponent at (l = 870 nm) has been presumed to be nearly independent of the wavelength for almost all types of aerosol models such as oceanic, maritime, and coastal. Here, in this communication, the values of the wavelengths have been taken as 500 and 870 nm for calculating the corresponding angstrom exponent values for comparison purpose to another study (Suresh and Desa, 2005) conducted over 3 years from 2000 to 2002.…”

“…The objectives of the study were to prepare extensive database in this context for the area to assess its effect on the biodiversity of the Sundarbans and if possible to compare it with some previous study of a different coastal site. Measurements on AOD for coastal areas similar to our sampling site were not found, as our sampling site is unique in its own (Suresh and Desa, 2005), for all the filter channels except for 340 and 1,020 nm are reported in Table 4. It is observed that all the AOD values of the present sampling site are more than the values reported in the study conducted at Dona Paula, Goa (Suresh and Desa, 2005).…”

“…To understand the true impact of the aerosols on the environment, various researchers and scientists all over the world, to name a few (Suresh and Desa, 2005, Six et al, 2005, Singh et al, 2006, Kazadis et al, 2007, have carried out extensive studies in this field. In fact studies carried out by different research groups and scientists, (Marquez et al, 2005, www.ipcc.ch/pdf/technicalpapers/climate-changes-biodiversity-en.pdf) have confirmed the adverse effects of aerosol on areas of rich and unique biodiversity (www.iirsnrsa.gov.in/annual_ report-2.pdf).…”