Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock
Respiration chambers are one of the primary sources of data on methane emissions from livestock. This paper describes the results from a coordinated set of chamber validation experiments which establishes the absolute accuracy of the methane emission rates measured by the chambers, and for the first...
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| Format: | Article |
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Elsevier
2015
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| Online Access: | https://eprints.nottingham.ac.uk/46396/ |
| _version_ | 1848797317655691264 |
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| author | Gardiner, T.D. Coleman, M.D. Innocenti, F. Tompkins, J. Connor, A. Garnsworthy, P.C. Moorby, J.M. Reynolds, C.K. Waterhouse, A. Wills, D. |
| author_facet | Gardiner, T.D. Coleman, M.D. Innocenti, F. Tompkins, J. Connor, A. Garnsworthy, P.C. Moorby, J.M. Reynolds, C.K. Waterhouse, A. Wills, D. |
| author_sort | Gardiner, T.D. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Respiration chambers are one of the primary sources of data on methane emissions from livestock. This paper describes the results from a coordinated set of chamber validation experiments which establishes the absolute accuracy of the methane emission rates measured by the chambers, and for the first time provides traceability to international standards, assesses the impact of both sensor and chamber response times on measurement uncertainty and establishes direct comparability between measurements made across different facilities with a wide range of chamber designs. As a result of the validation exercise the estimated absolute uncertainty associated with the overall capability across all facilities reduced from 25.7% (k=2, 95% confidence) before the validation to 2.1% (k=2, 95% confidence) afterwards. |
| first_indexed | 2025-11-14T20:01:58Z |
| format | Article |
| id | nottingham-46396 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:01:58Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-463962020-05-04T17:03:16Z https://eprints.nottingham.ac.uk/46396/ Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock Gardiner, T.D. Coleman, M.D. Innocenti, F. Tompkins, J. Connor, A. Garnsworthy, P.C. Moorby, J.M. Reynolds, C.K. Waterhouse, A. Wills, D. Respiration chambers are one of the primary sources of data on methane emissions from livestock. This paper describes the results from a coordinated set of chamber validation experiments which establishes the absolute accuracy of the methane emission rates measured by the chambers, and for the first time provides traceability to international standards, assesses the impact of both sensor and chamber response times on measurement uncertainty and establishes direct comparability between measurements made across different facilities with a wide range of chamber designs. As a result of the validation exercise the estimated absolute uncertainty associated with the overall capability across all facilities reduced from 25.7% (k=2, 95% confidence) before the validation to 2.1% (k=2, 95% confidence) afterwards. Elsevier 2015-04-01 Article PeerReviewed Gardiner, T.D., Coleman, M.D., Innocenti, F., Tompkins, J., Connor, A., Garnsworthy, P.C., Moorby, J.M., Reynolds, C.K., Waterhouse, A. and Wills, D. (2015) Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock. Measurement, 66 . pp. 272-279. ISSN 0263-2241 Respiration chambers methane emissions livestock emissions calibration traceability http://www.sciencedirect.com/science/article/pii/S0263224115000871?via%3Dihub doi:10.1016/j.measurement.2015.02.029 doi:10.1016/j.measurement.2015.02.029 |
| spellingShingle | Respiration chambers methane emissions livestock emissions calibration traceability Gardiner, T.D. Coleman, M.D. Innocenti, F. Tompkins, J. Connor, A. Garnsworthy, P.C. Moorby, J.M. Reynolds, C.K. Waterhouse, A. Wills, D. Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock |
| title | Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock |
| title_full | Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock |
| title_fullStr | Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock |
| title_full_unstemmed | Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock |
| title_short | Determination of the absolute accuracy of UK chamber facilities used in measuring methane emissions from livestock |
| title_sort | determination of the absolute accuracy of uk chamber facilities used in measuring methane emissions from livestock |
| topic | Respiration chambers methane emissions livestock emissions calibration traceability |
| url | https://eprints.nottingham.ac.uk/46396/ https://eprints.nottingham.ac.uk/46396/ https://eprints.nottingham.ac.uk/46396/ |