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Liu, Mengyao (author), van der A, Ronald (author), van Weele, Michiel (author), Eskes, Henk (author), Lu, Xiao (author), Veefkind, j. Pepijn (author), de Laat, Jos (author), Kong, Hao (author), Wang, Jingxu (author)We present a new divergence method to estimated methane (CH<sub>4</sub>) emissions from satellite observed mean mixing ratio of methane (XCH<sub>4</sub>) by deriving the regional enhancement of XCH<sub>4</sub> in the Planetary Boundary Layer (PBL). The applicability is proven by comparing the estimated emissions with its known emission...journal article 2021
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Liu, Mengyao (author), Lin, Jintai (author), Folkert Boersma, K. (author), Pinardi, Gaia (author), Wang, Yang (author), Chimot, J.J. (author), Wagner, Thomas (author), Xie, Pinhua (author), Eskes, Henk (author)Satellite retrieval of vertical column densities (VCDs) of tropospheric nitrogen dioxide (NO<sub>2</sub>) is critical for NO<sub>x</sub> pollution and impact evaluation. For regions with high aerosol loadings, the retrieval accuracy is greatly affected by whether aerosol optical effects are treated implicitly (as additional effective clouds)...journal article 2019