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Record 1 of 1344
Aerosol particles and the formation of advection fog
Author and Affiliation:
Hung, R. J.(Alabama Univ., Huntsville, AL, United States)
Liaw, G. S.(Alabama, University, Huntsville, Ala., United States)
Vaughan, O. H., Jr.(NASA Marshall Space Flight Center, Huntsville, Ala., United States)
Abstract: A study of numerical simulation of the effects of concentration, particle size, mass of nuclei, and chemical composition on the dynamics of warm fog formation, particularly the formation of advection fog, is presented. This formation is associated with the aerosol particle characteristics, and both macrophysical and microphysical processes are considered. In the macrophysical model, the evolution of wind components, water vapor content, liquid water content, and potential temperature under the influences of vertical turbulent diffusion, turbulent momentum, and turbulent energy transfers are taken into account. In the microphysical model, the supersaturation effect is incorporated with the surface tension and hygroscopic material solution. It is shown that the aerosol particles with the higher number density, larger size nuclei, the heavier nuclei mass, and the higher ratio of the Van't Hoff factor to the molecular weight favor the formation of the lower visibility advection fogs with stronger vertical energy transfer during the nucleation and condensation time period.
Publication Date: Jan 01, 1979
Document ID:
19800031534
(Acquired Nov 30, 1995)
Accession Number: 80A15704
Subject Category: METEOROLOGY AND CLIMATOLOGY
Document Type: Journal Article
Publication Information: Journal de Recherches Atmospheriques; 13; 1, 19; 1979
Publisher Information: France
Contract/Grant/Task Num: NAS8-31729
Financial Sponsor: NASA; United States
Organization Source: Alabama Univ.; Huntsville, AL, United States
NASA Marshall Space Flight Center; Huntsville, AL, United States
Description: 25p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ADVECTION; AEROSOLS; ATMOSPHERIC MODELS; FOG; METEOROLOGY; ENERGY TRANSFER; LOW VISIBILITY; MOISTURE CONTENT; PARTICLE FLUX DENSITY; PARTICLE SIZE DISTRIBUTION; SODIUM CHLORIDES; TURBULENT DIFFUSION; WATER VAPOR
Imprint And Other Notes: Journal de Recherches Atmospheriques, vol. 13, no. 1, 1979, p. 37-61.
Miscellaneous Notes: p. 37-
Availability Source: Other Sources
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