STATISTICAL CHARACTERISTICS OF CONCENTRATION FLUCTUATIONS IN DISPERSING PLUMES IN THE ATMOSPHERIC SURFACE LAYER

Authors
  1. Yee, E.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN)
Abstract
Measurements have been made of concentration fluctuations in a dispersing plume from an elevated point source in the atmospheric surface layer using a recently developed fast-response photoionization detector. This detector, which has a frequency response (-6dB point) of about 100 Hz, is shown to be capable of resolving the fluctuation variance contributed by the energetic subrange and most of the inertial-convective subrange, with a reduction in the fluctuation variance due to instrument smoothing of the finest scales present in the plume of at most 4%.
Date of publication
11 Sep 1992
Number of Pages
41
Reprinted from
Boundary-Layer Meteorology, vol 65, 1993, p 69-109
DSTKIM No
94-02897
CANDIS No
141314
Format(s):
Hardcopy;Originator's fiche received by DSIS

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