Articles | Volume 17, issue 14
https://doi.org/10.5194/amt-17-4493-2024
https://doi.org/10.5194/amt-17-4493-2024
Research article
 | 
29 Jul 2024
Research article |  | 29 Jul 2024

Evaluation of optimized flux chamber design for measurement of ammonia emission after field application of slurry with full-scale farm machinery

Johanna Pedersen, Sasha D. Hafner, Andreas Pacholski, Valthor I. Karlsson, Li Rong, Rodrigo Labouriau, and Jesper N. Kamp

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This preprint is open for discussion and under review for Atmospheric Measurement Techniques (AMT).
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Cited articles

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Beltran, I., van der Weerden, T. J., Alfaro, M. A., Amon, B., de Klein, C. A. M., Grace, P., Hafner, S., Hassouna, M., Hutchings, N., Krol, D. J., Leytem, A. B., Noble, A., Salazar, F., Thorman, R. E., and Velthof, G. L.: DATAMAN: A global database of nitrous oxide and ammonia emission factors for excreta deposited by livestock and land-applied manure, J. Environ. Qual., 50, 513–527, https://doi.org/10.1002/jeq2.20186, 2021. 
Bühler, M., Häni, C., Ammann, C., Mohn, J., Neftel, A., Schrade, S., Zähner, M., Zeyer, K., Brönnimann, S., and Kupper, T.: Assessment of the inverse dispersion method for the determination of methane emissions from a dairy housing, Agr. Forest Meteorol., 307, 108501, https://doi.org/10.1016/j.agrformet.2021.108501, 2021. 
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Short summary
Field-applied animal slurry is a significant source of NH3 emission. A new system of dynamic flux chambers for NH3 measurements was developed and validated using three field trials in order to assess the variability after application with a trailing hose at different scales: manual (handheld) application,  a 3 m slurry boom, and a 30 m slurry boom. The system facilitates NH3 emission measurement with replication after both manual and farm-scale slurry application with relatively high precision.
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