IASI-derived ER[NH3/CO] in tropical biomass burning regions

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30 January 2018

A recent study by Whitburn et al. (2017) investigates the spatial and temporal variability in the biome-specific NH3 enhancement ratios relative to CO (ER_NH3/CO). They suggest a revision of the  ER_NH3/CO and emission factors for NH3 used in the bottom-up fire models and highlight the need for the development of dynamic ER_NH3/CO in order to reduce the large uncertainty on the NH3 emission from vegetation fires.

Mean yearly ERNH3 /CO ratios averaged over the time period between 2008 and 2015 for the selected pixels. The four main biomes
studied are represented by the hatched lines: savanna (S), woody savanna (WS), evergreen broadleaf forest (EBF), and crop together with the cropland/natural vegetation mosaic (C+CNVM), here called C. (Whitburn et al., 2017)

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