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

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dc.contributor.author Tiwari, Y.K.
dc.contributor.author Patra, P.K.
dc.contributor.author Chevallier, F.
dc.contributor.author Francey, R.J.
dc.contributor.author Krummel, P.B.
dc.contributor.author Allison, C.E.
dc.contributor.author Revadekar, J.V.
dc.contributor.author Chakraborty, S.
dc.contributor.author Langenfelds, R.L.
dc.contributor.author Bhattacharya, S.K.
dc.contributor.author Borole, D.V.
dc.contributor.author RaviKumar, K.
dc.contributor.author Steele, L.P.
dc.date.accessioned 2012-01-03T06:40:34Z
dc.date.available 2012-01-03T06:40:34Z
dc.date.issued 2011
dc.identifier.citation Current Science, vol.101(12); 2011; 1562-1568
dc.identifier.uri http://drs.nio.org/drs/handle/2264/3988
dc.description.abstract India has the second largest population, one of fastest growing economies and is ranked third in greenhouse gas emissions by fossil-fuel burning in the world. However, there has been little monitoring of atmospheric CO sub(2) concentration over India to date. Here we reanalyse pioneering atmospheric CO sub(2) observations at Cape Rama, on west coast of India, off Goa (CRI) during the period from February 1993 to October 2002, using three forward transport models to simulate atmospheric CO sub(2) and separate tracers of terrestrial and oceanic fluxes, and fossil-fuel emissions. The CO sub(2) seasonal behaviour at this site has clear signals from monsoon-driven meteorology and terrestrial ecosystem activity, which are generally captured by all three models. The quality of the agreement between the simulations and the observations varies with season, with better results obtained during the southwest monsoon months when the CRI site observes the oceanic air of mostly southern hemispheric origin. Relatively poor model-data agreements in the other seasons, when air originating from the Indian subcontinent passes over the site, arise from the inability of coarse-resolution global models to represent CRI appropriately. In addition, limited atmospheric CO sub(2) measurements in the South Asia region only provide poor constraint on inversion fluxes. Flux signal footprint analysis of the CRI station highlights the need of extending the observation network inland and to different parts of the country for better understanding of the carbon cycle of India
dc.language.iso en
dc.publisher Current Science Association
dc.rights Copyright [2011]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository
dc.subject carbon dioxide
dc.subject monitoring systems
dc.subject climatic changes
dc.subject seasonal variations
dc.title Carbon dioxide observations at Cape Rama, India for the period 1993–2002: implications for constraining Indian emissions
dc.type Journal Article


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