Link between local scale BC emissions in the Indo-Gangetic Plains and large scale atmospheric solar absorption

摘要: Abstract. Project Surya has documented indoor and outdoor concentrations of black carbon (BC) from traditional biomass burning cook stoves in a rural village located the Indo-Gangetic Plains (IGP) region N. India November 2009–September 2010. In this paper, we systematically document link between local scale aerosol properties column averaged regional optical atmospheric radiative forcing. We observations first phase estimate source dependent (biomass fossil fuels) to scale. Data were collected using surface based BC, organic (OC), light absorption, scattering coefficient at (SVI_1) IGP integrated with satellite AERONET (IGP). The daily mean BC SVI_1 showed large increase during dry season (December February) values reaching 35 μg m−3. Space LIDAR data revealed how smoke was trapped within kilometer extended above 5 km pre-monsoon season. As result, season, variance single albedo (SSA), ratio extinction coefficient, site correlated (with slopes range 0.85 1.06 R2>0.4) well "IGP_AERONET" (mean six sites). statistically significant correlation suggested that in-situ can be used derive spatial forcing, least for forcing due OC exceeded 20 Wm−2 all months May, supporting deduction elimination stove emissions through clean cooking technologies will likely have major positive impact not only on human health but also climate.