Measure trace atmospheric species to investigate the effects of manmade emissions.
The Indian Ocean is an unique environment in which to study the effects of an intense source of emissions from the Northern Hemisphere mixing with pristine air from the Southern Hemisphere. During the voyage, four regions of the atmosphere were encountered which showed vastly different properties. Manmade emissions alter the chemical and radiative characteristics of the atmosphere at great distances from their sources. Detailed measurements of these changes help understand the impact of these pollutants on our global environment .