Maps showing the global distribution of atmospheric methane (CH4) from 2003-2004 (top) and 2010-2011 (bottom). Concentration,in parts per billion (ppb),is colour-coded,from purple (low),through blue and green to yellow and red (high). The scale changes for the two images,as in 2010-2011 average global methane is approximately 30 ppb higher than 2003-2004. High emission areas include wetlands in Siberia and the USA,rice fields in China,and coal and gas mining in the USA. 2003-2004 data from the Sciamachy instrument on ESA's Envisat satellite. 2010-2011 data from the TANSO-FTS (Infrared Fourier Transform Spectrometer) instrument on Japan's GOSAT (Greenhouse Gases Observing Satellite) satellite | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / ESA / University Bremen |
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