Applicability of the inverse dispersion method to measure emissions from animal housings

Abstract 4) was released from an artificial source inside a barn that mimicked a naturally ventilated dairy housing, and IDM recovery rates, using a backward Lagrangian stochastic (bLS) model, were determined. For concentration measurements, open-path devices (OPs) with a path length of 110 m were placed in a downwind direction of the barn at fetches of 2.0h h h h h  equals the height of the highest obstacle), and a 3D ultrasonic anemometer (UA) was placed in the middle of the first three OP paths. Upwind of the barn, an additional OP and a UA were installed. The median IDM recovery rates determined with the UA placed upwind of the barn and the downwind OP ranged between 0.55–0.75. It is concluded that, for the present study case, the effect of the building and a tree in the main wind axis led to a systematic underestimation of the IDM-derived emission rate probably due to deviations in the wind field and turbulent dispersion from the underlying assumptions of the used dispersion model.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
Applicability of the inverse dispersion method to measure emissions from animal housings ; volume:17 ; number:15 ; year:2024 ; pages:4649-4658 ; extent:10
Atmospheric measurement techniques ; 17, Heft 15 (2024), 4649-4658 (gesamt 10)

Classification
Wirtschaft

Creator
Bühler, Marcel
Häni, Christoph
Neftel, Albrecht
Bühler, Patrice
Ammann, Christof
Kupper, Thomas

DOI
10.5194/amt-17-4649-2024
URN
urn:nbn:de:101:1-2408150428576.102264489432
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 10:52 AM CEST

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Associated

  • Bühler, Marcel
  • Häni, Christoph
  • Neftel, Albrecht
  • Bühler, Patrice
  • Ammann, Christof
  • Kupper, Thomas

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