Diffusion of Stack Gases in Very Stable Atmospheres: Case II

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Description

In 1949 Barad presented two solutions to the general diffusion equation. Basic in both solutions is the assumption that in very stable atmospheres a point source may be replaced by a vertical area of uniform concentration at a short distance downwind. This vertical area is considered to exist at the distance at which the plume finally "levels-off" and assumes a flat ribbon-like appearance. In addition if the distance over which diffusion takes place is limited to one or two miles and if only the stable atmosphere with its narrow range of eddy sizes is considered, the average diffusion co-efficient (K) … continued below

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11 pages: illustrations, figures.

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Barad, M. L. & Shorr, B. August 10, 1953.

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  • Barad, M. L. Experimental Meteorology, Radiological Sciences Department
  • Shorr, B. Experimental Meteorology, Radiological Sciences Department

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Description

In 1949 Barad presented two solutions to the general diffusion equation. Basic in both solutions is the assumption that in very stable atmospheres a point source may be replaced by a vertical area of uniform concentration at a short distance downwind. This vertical area is considered to exist at the distance at which the plume finally "levels-off" and assumes a flat ribbon-like appearance. In addition if the distance over which diffusion takes place is limited to one or two miles and if only the stable atmosphere with its narrow range of eddy sizes is considered, the average diffusion co-efficient (K) has a signficance which it does not have in the case of neutral equilibrium.

Physical Description

11 pages: illustrations, figures.

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Digitized from microopaque cards.

Operated for the Atomic Energy Commission by the General Electric Company under Contract #W-31-109-Eng.52.

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  • Report No.: HW-28917
  • Accession or Local Control No: metadc1201878
  • Grant Number: #W-31-109-Eng.-52
  • SuDoc Number: Y3.At 7:22/HW-28917
  • Archival Resource Key: ark:/67531/metadc1201878

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Creation Date

  • August 10, 1953

Added to The UNT Digital Library

  • Aug. 27, 2019, 3:53 p.m.

Description Last Updated

  • July 23, 2020, 3 p.m.

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Barad, M. L. & Shorr, B. Diffusion of Stack Gases in Very Stable Atmospheres: Case II, report, August 10, 1953; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc1201878/: accessed February 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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