Hansen Cao, Daven K Henze, Liye Zhu, Mark W Shephard, Karen Cady-Pereira, Enrico Dammers, Michael Sitwell, Nicholas Heath, Chantelle Lonsdale, Jesse O Bash, Kazuyuki Miyazaki, Christophe Flechard, Yannick Fauvel, Roy Wichink Kruit, Stefan Feigenspan, Christian Brümmer, Frederik Schrader, Marsailidh M Twigg, Sarah Leeson, Yuk S Tang, Amy C M Stephens, Christine Braban, Keith Vincent, Mario Meier, Eva Seitler, Camilla Geels, Thomas Ellermann, Agnieszka Sanocka, Shannon L Capps
We conduct the first 4D-Var inversion of NH3 accounting for NH3 bi-directional flux, using CrIS satellite NH3 observations over Europe in 2016. We find posterior NH3 emissions peak more in springtime than prior emissions at continental to national scales, and annually they are generally smaller than the prior emissions over central Europe, but larger over most of the rest of Europe. Annual posterior anthropogenic NH3 emissions for 25 European Union members (EU25) are 25% higher than the prior emissions and very close (<2% difference) to other inventories...
May 16, 2022: Journal of Geophysical Research. Atmospheres: JGR