Figure 1
From: On the weekly cycle of atmospheric ammonia over European agricultural hotspots
(a) Average NH3 total column distribution (molec cm\(^{-2}\)) over Europe based on IASI-A (2008–2019), IASI-B (2013–2020) and IASI-C (2020) morning observations. (b) Normalized NH3 day of the week time-series over the three main source regions in Europe (indicated by coloured rectangles in panel (a)); only continental data are considered.
