Dispersion experiments using short-term releases of an atmospheric tracer

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The Mesoscale Atmospheric Transport Studies (MATS) experiments were undertaken to provide a data base for determining the accuracy of mesoscale atmospheric dispersion model predictions for short term releases. This paper describes the MATS experiments and compares observed dispersion parameters with theory. The movement of the sulfur hexaflouride cloud has been compared with wind sensors placed at several different elevations. The observed sigma-y values are also compared with theory and found to agree well with Pasquill's (1976) method. The aim in the MATS experiments has been to achieve as many sceintific goals as possible while answering the fundamental question of model ... continued below

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Pages: 13

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Weber, A H & Kurzeja, R J January 1, 1985.

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Description

The Mesoscale Atmospheric Transport Studies (MATS) experiments were undertaken to provide a data base for determining the accuracy of mesoscale atmospheric dispersion model predictions for short term releases. This paper describes the MATS experiments and compares observed dispersion parameters with theory. The movement of the sulfur hexaflouride cloud has been compared with wind sensors placed at several different elevations. The observed sigma-y values are also compared with theory and found to agree well with Pasquill's (1976) method. The aim in the MATS experiments has been to achieve as many sceintific goals as possible while answering the fundamental question of model accuracy. The MATS experiments provide information on crosswind and downwind spread of material. The horizontal spread is obtained by a crosswind system of samplers and downwind spread can be determined by using several arcs. Unfortuantely, budget considerations restricted the sampling to a single arc at about 30km downwind from the release point. Despite this limitation, downwind dispersion results were obtained by collecting a sequence of continuous, relatively-short-time-samples as the plume moved downwind. It was assumed that the structure of the plume changed slowly as it moved across the sampling arc. 6 refs., 4 figs., 1 tab.

Physical Description

Pages: 13

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NTIS, PC A02/MF A01.

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  • 7. symposium on turbulence and diffusion of the AMS, Boulder, CO, USA, 12 Nov 1985

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  • Other: DE85018519
  • Report No.: DP-MS-85-40
  • Report No.: CONF-851177-4
  • Grant Number: AC09-76SR00001
  • Office of Scientific & Technical Information Report Number: 5204544
  • Archival Resource Key: ark:/67531/metadc1058166

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1985

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  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 31, 2018, 5:22 p.m.

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Weber, A H & Kurzeja, R J. Dispersion experiments using short-term releases of an atmospheric tracer, article, January 1, 1985; Aiken, South Carolina. (digital.library.unt.edu/ark:/67531/metadc1058166/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.