Green house gases (GHG) concentration variations over Indian region by in situ measurements

A high end GHG measuring laboratory has been established in IITM and near-continuous records of pCO2 ([CH4]) are being measured over the last 6 years. The GHG data provide insight about the causative mechanisms that control their variability

Identification of the sources and sinks of GHG from observations of GHG fluxes over network of Indian stations covering different ecosystems

Measurements of CO2 and H2O fluxes at a deciduous forest in Assam , evergreen forest in Darjeeling, and at the aqueous environment of the Pichavaram mangrove indicate that the deciduous and evergreen forest ecosystems act as a net sink of CO2 during the summer-monsoon season. On the other hand the aqueous Pichavaram mangrove ecosystem appears to act as a source of CO2 to the atmosphere, apparently driven by anthropogenic activities (shrimp production).