[AAS11-P12] Recent increase and subsequent decrease of the total column of ethane observed with FTIR at Tsukuba
Keywords:FTIR, Greenhouse Gas, ethane
C2H6 is the second major hydrocarbon and contribute to global warming and air pollution indirectly. The main sources are anthropogenic ones such as natural gas, biofuel, and biomass burning.
Temporal variation of retrieved total column of C2H6 shows a little bit decrease (-0.4%/year) from 2001 to 2008, increase (2.2%/year) from 2009 to 2013, and again decrease (-0.6%/year) from 2014 to 2016. The last trend from 2014 may due to decrease in emission (natural gas and biofuel) related to the increase in the production of fossil fuel due to the fall of the price.