09 November 2022
China's Gaofen 5B Earth-observation satellite has helped identify 2 point sources of methane emissions in the U.S. state of New Mexico as it passed the region, according to Zhang Yongguang, a professor at Nanjing University. Based on a satellite image captured by the advanced hyperspectral images Gaofen 5B carried in February, the gradient of methane concentration in the two locations is estimated to be an enhancement of 25 parts per billion to 350 parts per billion higher than the background atmospheric methane concentration, he told China Daily on 09 November.
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