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Deriving contaminant concentration fluctuations from time-averaged records

Authors
Journal
Atmospheric Environment (1967)
0004-6981
Publisher
Elsevier
Publication Date
Volume
21
Issue
4
Identifiers
DOI: 10.1016/0004-6981(87)90075-8
Keywords
  • Measurement Averaging
  • Concentration Measurements
  • Statistical Analysis
  • Pollutant Concentration Studies

Abstract

Abstract It is not uncommon in atmospheric diffusion problems, such as the dosage problem, to encounter contaminant concentration measurements that are obtained by averaging the instantaneous concentration value over a significant length of time. A simple and practical scheme is developed to extract the correlation function and the probability density function, when an even distribution about the mean, of the instantaneous values of concentration from the time-averaged records. The use of this scheme is illustrated with experimental data and with numerically generated, control, data sets.

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