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Hindi Source identification of atmospheric CO2 over India
Tania Guha
Indian Institute of Tropical Meteorology, India
: Expert Opin Environ Biol
Abstract
India has ratified the Paris Agreement with a target to reduce CO2 emission intensity. To achieve this target, it is of utmost priority to quantitatively understand the processes behind the CO2 emissions over India. This can be achieved through simultaneous measurement of mixing ratio and stable isotope ratio of atmospheric CO2. Few efforts have been taken in India to observe CO2 mixing ratio, but efforts towards monitoring of stable isotope ratio of atmospheric CO2 is very rare. Bhattacharya et al., 2009 and Tiwari et al, 2011 have revealed direct impact of the large-scale monsoon circulation, characterized by biannual reversal in surfacelevel winds on the variability of CO2 mixing ratio over Indian subcontinent. Tania et al, 2010-2015, discussed about mixing ratio and stable isotope observations of CO2 at Bangalore India. They have identified fossil fuel, biomass burning and cement industry emission as the prominent sources for the station. Single site monitoring can lead to a spatial limitation of data and dependencies of the features of the particular site. In addition, large spatial-temporal heterogeneity of sources in India and local emissions may produces large uncertainty in source estimation based on single site measurement. Thus multiple monitoring stations within a well defined network are in immediate need to develop in India. In summary, Indian monsoon dynamic and the enhancement in investing in renewable technology will have a prominent effect on the future per capita emission of CO2 from India. In order to design strategies for emission reduction, possible source identification as well as quantitative estimation of their contribution to CO2 variability are primary important. This highlights the immediate requirement of establishing a monitoring network of multiple stations where high-precision, high-frequency measurement mixing ratio and stable isotope ratio of atmospheric CO2 as well as other GHGs will be conducted.
Biography
E-mail: tania.guha@tropmet.res.in guha.tania@gmail.com
