Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Jesper Nørlem Kamp"'
Publikováno v:
Atmospheric Environment: X, Vol 22, Iss , Pp 100258- (2024)
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 emissions. To achieve this, reliable measuring techniques are necessary to q
Externí odkaz:
https://doaj.org/article/9122d9e6d8fb482eb70867bf60c4e58c
Publikováno v:
Sensors, Vol 21, Iss 5, p 1701 (2021)
Measurements of ammonia with inexpensive and reliable sensors are necessary to obtain information about e.g., ammonia emissions. The concentration information is needed for mitigation technologies and documentation of existing technologies in agricul
Externí odkaz:
https://doaj.org/article/54fcc953638346569995492a9881287a
Publikováno v:
Atmosphere, Vol 12, Iss 1, p 102 (2021)
Two campaigns measuring ammonia (NH3) emissions with different measurement techniques were performed on a large grass field (26 ha) after the application of liquid animal manure. The aim was to compare emissions from a confined area estimated from ei
Externí odkaz:
https://doaj.org/article/d215b1d199ad43f684ac52e79300d513
Publikováno v:
Atmosphere, Vol 11, Iss 10, p 1067 (2020)
Flux measurements with the aerodynamic gradient method (AGM) performed with a single analyzer measuring non-simultaneously at two heights have routinely been conducted. This study investigates the effect of this practice with calculations of single a
Externí odkaz:
https://doaj.org/article/f1c8ef1ab1f24dd295e8f575d632d60d
Publikováno v:
Lemes, Y M, Häni, C, Kamp, J N & Feilberg, A 2023, ' Evaluation of open-and closed-path sampling systems for the determination of emission rates of NH3 and CH4 with inverse dispersion modeling ', Atmospheric Measurement Techniques, vol. 16, no. 5, pp. 1295-1309 . https://doi.org/10.5194/amt-16-1295-2023
The gas emission rates of ammonia (NH3) and methane (CH4) from an artificial source covering a surface area of 254 m2 were determined by inverse dispersion modeling (IDM) from point-sampling and line-integrated concentration measurements with closed-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::660268e25952d963d0414d73f2077397
https://amt.copernicus.org/articles/16/1295/2023/
https://amt.copernicus.org/articles/16/1295/2023/
Publikováno v:
Feilberg, A, Lemes, Y M, Kamp, J N & Pedersen, J 2023, ' Emissions of NMVOC from field application of manure measured by PTR-MS ', EGU General Assembly 2023, Vienna, Austria, 23/04/2023-28/04/2023 .
Non-methane volatile organic compounds are important air pollutants that contribute to tropospheric ozone production in combination with nitrogen oxides (NOx) and sunlight. Ozone is an important but often overlooked greenhouse gas with adverse effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb8fa3ad65f1a433369a10e503d32380
https://pure.au.dk/portal/da/publications/emissions-of-nmvoc-from-field-application-of-manure-measured-by-ptrms(3fb0a771-8cca-4cb6-abfa-f5db32d4cdb6).html
https://pure.au.dk/portal/da/publications/emissions-of-nmvoc-from-field-application-of-manure-measured-by-ptrms(3fb0a771-8cca-4cb6-abfa-f5db32d4cdb6).html
Autor:
Jesper Nørlem Kamp, Johanna Pedersen, Jan Huijsmans, Hannah Götze, Andreas Pacholski, Sasha Hafner
Publikováno v:
Kamp, J N, Pedersen, J, Huijsmans, J, Götze, H, Pacholski, A & Hafner, S D 2023, ' Measurement methods for ammonia emissions after field application of slurry ', EGU General Assembly 2023, Vienna, Austria, 23/04/2023-28/04/2023 .
Agricultural sources of atmospheric ammonia after slurry application vary over space and time, which makes it difficult to accurately quantify emissions. Different methods for concentration and emission estimation have been used by different institut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::465ea809a3992af38ec3c1f5759e1101
https://pure.au.dk/portal/da/publications/measurement-methods-for-ammonia-emissions-after-field-application-of-slurry(14a300e1-3bfb-4e07-aff3-6faa4a5fc1e7).html
https://pure.au.dk/portal/da/publications/measurement-methods-for-ammonia-emissions-after-field-application-of-slurry(14a300e1-3bfb-4e07-aff3-6faa4a5fc1e7).html
Publikováno v:
Lemes Perschke, Y M, Kamp, J N & Feilberg, A 2022, ' Emission rates of ammonia and methane agricultural sources highlight the importance of high frequency measurement ', The XX CIGR World Congress 2022, Kyoto, Japan, 05/12/2022-10/12/2022 .
Aarhus University
Aarhus University
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::26d1f80b3c94e50a99b315c35974070d
https://pure.au.dk/portal/da/publications/emission-rates-of-ammonia-and-methane-agricultural-sources-highlight-the-importance-of-high-frequency-measurement(46caf4e6-56bf-4042-9f14-b26a200d64fe).html
https://pure.au.dk/portal/da/publications/emission-rates-of-ammonia-and-methane-agricultural-sources-highlight-the-importance-of-high-frequency-measurement(46caf4e6-56bf-4042-9f14-b26a200d64fe).html
Autor:
Anders Feilberg, Jesper Nørlem Kamp, Dezhao Liu, Li Rong, Anders Peter S. Adamsen, Albarune Chowdhury, Xianwang Kong
Publikováno v:
Atmospheric Measurement Techniques. 13:259-272
Infrared (IR) photoacoustic spectroscopy (PAS) using band-pass filters is a widely used method for measurement of NH3 and greenhouse gas emissions (CH4, N2O and CO2) especially in agriculture, but non-targeted gases such as volatile organic compounds