Fig. 4 | Scientific Reports

Fig. 4

From: Using multi-satellite observations to constrain ammonia emissions and unlock their potential over open water

Fig. 4

Spatial distribution of annually-averaged (2019) a-priori and a-posteriori concentrations of \(\:\text{N}{\text{H}}_{3}\), \(\:\text{N}{\text{H}}_{4}^{+}\), \(\:\text{S}{\text{O}}_{4}^{2-}\), and \(\:\text{N}{\text{O}}_{3}^{-}\) constrained by the CrIS instrument. The left column presents prior concentrations (with no use of satellite data), the middle column shows posterior concentrations constrained by CrIS, and the right column shows the difference between a-posteriori and a-priori concentrations for each chemical. The calculations, as well as the maps, were produced with a Python (3.9.5) script (https://www.python.org/downloads/release/python-395/).

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