Comparison of Observed and Predicted Sector-Averaged Air Concentrations for Elevated Releases of Fluorescein Particles

Fields, D.E.; Miller, Charles W.; Cotter, S.J.

doi:10.1080/00022470.1981.10465289

Journal of the Air Pollution Control Association

1981

DOI: 10.1080/00022470.1981.10465289

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Comparison of Observed and Predicted Sector-Averaged Air Concentrations for Elevated Releases of Fluorescein Particles

D.E. Fields

Charles W. Miller

S.J. Cotter

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1984

1988

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Cited by 3 publications

(1 citation statement)

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“…During the last decade, ORNL scientists have documented a number of comparisons between Gaussian plume model predictions and field, IL 62704. measured air-concentration data from the Hanford site (Miller et al 1979;Fields et al 1981;Little et al 1982;Miller and Cotter 1982;Fields et al 1983;Yildiran and Miller 1983). The purpose of this paper is to summarize the results of these individual studies, and to briefly discuss possible future model validation studies using the results of various Hanford dispersion tests.…”

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confidence: 96%

Examination of the Uncertainty in Air Concentration Predictions Using Hanford Field Data

Miller

Fields²,

Cotter³

1988

Health Physics

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The accuracy of an environmental transport model is best determined by comparing model predictions with environmental measurements made under conditions similar to those assumed by the model, a process commonly referred to as model validation. Over the past several years, we have done a variety of validation studies with the popular Gaussian plume atmospheric dispersion model using data from tests conducted on the Hanford site. Data for short-term releases of small particles for a range of release heights from surface level to 111 m have been used. Downwind distances examined have ranged from a few hundred meters to 12.8 km, depending on the particular data used. Measured and predicted ground-level centerline, crosswind-integrated, and 22.5 degrees sector-averaged air concentrations have been compared. Up to six different sets of atmospheric dispersion parameters and three different atmospheric stability class specification schemes have been examined. Overall, dispersion parameters based on measurements made near Jülich, Federal Republic of Germany, give the best comparisons between observed and predicted air concentrations. The commonly used vertical temperature gradient method for determining atmospheric stability class consistently gives poor results. The accuracy of air concentration predictions improves when dry deposition processes are included in the model. Further validation studies using various Hanford data sets are planned.

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mentioning

confidence: 96%

Examination of the Uncertainty in Air Concentration Predictions Using Hanford Field Data

Miller

Fields²,

Cotter³

1988

Health Physics

Self Cite

View full text Add to dashboard Cite

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A literature survey on tracer experiments for atmospheric dispersion modelling studies

Vanderborght

Kretzschmar

1984

Atmospheric Environment (1967)

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Validation of the AIRDOS-EPA computer code by simulating intermediate range transport of 85Kr from the Savannah River Plant

Fields

Miller

Cotter

1984

Atmospheric Environment (1967)

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Comparison of Observed and Predicted Sector-Averaged Air Concentrations for Elevated Releases of Fluorescein Particles

Cited by 3 publications

References 6 publications

Examination of the Uncertainty in Air Concentration Predictions Using Hanford Field Data

Examination of the Uncertainty in Air Concentration Predictions Using Hanford Field Data

A literature survey on tracer experiments for atmospheric dispersion modelling studies

Validation of the AIRDOS-EPA computer code by simulating intermediate range transport of 85Kr from the Savannah River Plant

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