Field Procedure for Measurement of Flightline Offset in Forestry Spraying (Procede sur le Terrain pour Mesurer la Distance de Decentrement de la Ligne de vol dans une Operation d'Epandage des Forets).
Abstract
Among results from different field experiments on target deposition and off-target windborne droplet drift in aerial forest sprays, there can be disagreement due chiefly to: 1) differences in target stand characteristics which influence their droplet interception efficiencies, including mean wind speed profiles above the forest, nature and density of the stand and average size and orientation of foliage elements; b) differences in the mean and turbulent structure of the temperature, humidity and vector wind fields both in the canopy flow and in the atmospheric surface layer flow above the stand, all of which influence the sink velocity and decay rate of the aircraft vortex wake containing the ultra-low-volume (ULV) spray emission (thereby determining the effective spray release height) as well as the turbulent deposition velocity of the droplets.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1988
- Accession Number
- ADA194110
Entities
People
- M. Mccooeye
- R. S. Crabbe
Organizations
- National Research Council Canada