Carbon dioxide observations at Cape Rama, India for the period 1993-2002: implications for constraining Indian emissions

摘要: India has the second largest population, one of fastest growing economies and is ranked third in greenhouse gas emissions by fossil-fuel burning world. However, there been little monitoring atmospheric CO 2 concentration over to date. Here we reanalyse pioneering observations at Cape Rama, (CRI) during period from February 1993 October 2002, using three forward transport models simulate separate tracers terrestrial oceanic fluxes, emissions. The seasonal behaviour this site clear signals monsoon-driven meteorology ecosystem activity, which are generally captured all models. quality agreement between simulations varies with season, better results obtained southwest monsoon months when CRI observes air mostly southern hemispheric origin. Relatively poor model-data agreements other seasons, originating Indian subcontinent passes site, arise inability coarse-resolution global represent appropriately. In addition, limited measurements South Asia region only provide constraint on inversion fluxes. Flux signal footprint analysis station highlights need extending observation network inland different parts country for understanding carbon cycle India.