Articles | Volume 17, issue 8
https://doi.org/10.5194/amt-17-2465-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-17-2465-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Apr 2024
Research article |
| 23 Apr 2024
| 23 Apr 2024
An uncertainty methodology for solar occultation flux measurements: ammonia emissions from livestock production
Johan Mellqvist
CORRESPONDING AUTHOR
Department of Space, Earth and Environment, Chalmers University of Technology, Göteborg, Sweden
Nathalia T. Vechi
Department of Space, Earth and Environment, Chalmers University of Technology, Göteborg, Sweden
Department of Environmental and Resource Engineering, Technical University of Denmark, Lyngby, Denmark
Charlotte Scheutz
Department of Environmental and Resource Engineering, Technical University of Denmark, Lyngby, Denmark
Marc Durif
INERIS, Verneuil-en-Halatte, France
Francois Gautier
INERIS, Verneuil-en-Halatte, France
John Johansson
FluxSense AB, Göteborg, Sweden
Jerker Samuelsson
FluxSense AB, Göteborg, Sweden
Brian Offerle
FluxSense AB, Göteborg, Sweden
Samuel Brohede
FluxSense AB, Göteborg, Sweden
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Short summary
The solar occultation flux method retrieves ammonia gas columns from the solar spectrum. Emissions are obtained by multiplying the integrated plume concentration by the wind speed profile. The methodology for uncertainty estimation was established considering an error budget with systematic and random components, resulting in an expanded uncertainty in the range of 20 % to 30 %. The method was validated in a controlled release, and its application was demonstrated in different farms.
The solar occultation flux method retrieves ammonia gas columns from the solar spectrum....
