[HTML][HTML] Experimental and model-based comparison of wind tunnel and inverse dispersion model measurement of ammonia emission from field-applied animal slurry

SD Hafner, JN Kamp, J Pedersen - Agricultural and Forest Meteorology, 2024 - Elsevier
Volatilization of ammonia from field-applied animal slurry is a significant problem. Accurate
emission measurements are needed for inventories and research, but are not provided by …

[HTML][HTML] Investigation of non-target gas interferences on a multi-gas cavity ring-down spectrometer

P García, AH Støckler, A Feilberg, JN Kamp - Atmospheric Environment: X, 2024 - Elsevier
Emissions from agriculture are a worldwide problem as it is the major anthropogenic source
of ammonia, methane, and nitrous oxide. Several efforts have been made to mitigate …

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

J Pedersen, SD Hafner, A Pacholski… - Atmospheric …, 2024 - amt.copernicus.org
Field-applied liquid animal manure (slurry) is a significant source of ammonia (NH 3)
emission, which is harmful to the environment and human health. To evaluate mitigation …

Evaluation of open- and closed-path sampling systems for the determination of emission rates of NH and CH with inverse dispersion modeling

YM Lemes, C Häni, JN Kamp… - Atmospheric …, 2023 - amt.copernicus.org
The gas emission rates of ammonia (NH 3) and methane (CH 4) from an artificial source
covering a surface area of 254 m 2 were determined by inverse dispersion modeling (IDM) …

[HTML][HTML] Improved tools for estimation of ammonia emission from field-applied animal slurry: Refinement of the ALFAM2 model and database

SD Hafner, J Pedersen, R Fuß, JN Kamp… - Atmospheric …, 2025 - Elsevier
Ammonia volatilization from animal slurry applied to agricultural fields reduces nitrogen use
efficiency in agriculture and pollutes the environment. This work presents new versions of a …

[HTML][HTML] Comparison of two micrometeorological and three enclosure methods for measuring ammonia emission after slurry application in two field experiments

JN Kamp, SD Hafner, J Huijsmans… - Agricultural and Forest …, 2024 - Elsevier
Ammonia emission following field application of animal slurry is a significant problem for the
environment and human health. Accurate emission measurements are crucial for …

Optimized design of flux chambers for measurement of ammonia emission after field application of slurry with full-scale farm machinery

J Pedersen, SD Hafner, A Pacholski… - Atmospheric …, 2024 - amt.copernicus.org
Field applied liquid animal manure (slurry) is a significant source of ammonia (NH 3)
emission, which is harmful to the environment and human health. To evaluate mitigation …

The aerodynamic gradient method: implications of non-simultaneous measurements at alternating heights

JN Kamp, C Häni, T Nyord, A Feilberg, LL Sørensen - Atmosphere, 2020 - mdpi.com
Flux measurements with the aerodynamic gradient method (AGM) performed with a single
analyzer measuring non-simultaneously at two heights have routinely been conducted. This …

[PDF][PDF] Covering reduces emissions of ammonia, methane, and nitrous oxide from stockpiled broiler litter

JN Kamp, A Feilberg - Biosystems Engineering, 2024 - researchgate.net
Poultry litter, a mix of excreta, bedding material, and discarded feed, is extracted from poultry
houses, and used as fertiliser. The litter is often stored in stockpiles outside before field …

Ammonia emissions from a dairy housing and wastewater treatment plant quantified with an inverse dispersion method accounting for deposition loss

AC Valach, C Häni, M Bühler, J Mohn… - Journal of the Air & …, 2023 - Taylor & Francis
Ammonia (NH3) emissions negatively impact air, soil, and water quality, hence human
health and biodiversity. Significant emissions, including the largest sources, originate from …