Results 221 to 230 of about 4,295 (258)

Characterising uncertainty in plume dispersion models

International Journal of Environment and Pollution, 2005
For management decisions related to effects of releases of toxic chemicals, it is useful to consider not only the expected or most likely impact of the release, but also the envelope of possible outcomes, the latter of which involves an assessment of the uncertainty in the modelling results.
John S. Irwin, Steven R. Hanna
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Terrain Aerodynamics and Plume Dispersion

1986
The ability to predict ground-level concentrations of air pollutants released from sources in or near complex terrain is required in order to determine the environmental impact from existing sources, to evaluate alternative new source locations and designs, and to estimate the effects of possible modifications to existing sources.
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Concentration Fluctuations in Dispersing Plumes

1988
One may argue about whether the Navier-Stokes equations of fluid motion are deterministic, or even about their relevance to atmospheric motion, but at a practical level one is forced to accept that it is impossible to make sufficiently detailed measurements to specify the entire velocity field.
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Plume dispersion investigated by landsat imagery

Atmospheric Environment. Part A. General Topics, 1991
Abstract Suspended particulate in the atmosphere may be detected by satellite sensors due to scattered radiation. A number of LANDSAT TM images presenting the evidence of the pollutant plumes emitted at the stack of the electric power plants located at two Italian coastal sites, dispersing mainly over the sea surface, have been selected.
F. Desiato, M.G. Ciminelli
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Parameterization of plume dispersion over water

Atmospheric Environment (1967), 1986
Abstract Data collected during a continuous surface release point source tracer experiment off the California coast have been analyzed to obtain the conventional, hourly averaged sigma-y and sigma-z values widely used in Gaussian plume dispersion formulae.
C.E. Skupniewicz, G.E. Schacher
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CONCENTRATION FLUCTUATIONS IN DISPERSING TRACER PLUMES

1985
Turbulent diffusion theory for atmospheric plumes has focused almost entirely upon observations and predictions of mean concentrations. Recently, interest has increased in the nature of short-term concentrations as related to the diffusion of toxic and flammable materials or smoke.
Lamb, Brian K, Peterson, Holly, Campbell, Malcolm J.   +2 more
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Flow and Plume Dispersion in a Coastal Valley

Journal of Applied Meteorology, 1992
Abstract An analysis is carried out of summertime surface and upper-air wind and temperature data from the Latrobe Valley in southeastern Australia. An easterly sea breeze is found to regularly penetrate over 100 km up the east-west-oriented valley, meeting a sea breeze from the south coat in late afternoon.
William L. Physick, Deborah J. Abbs
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Buoyant plume dispersion in a coastal environment: evolving plume structure and dynamics

Continental Shelf Research, 1994
A field program has been devised to study the dispersion of a buoyant plume formed by the discharge of treated wastewater from the Whites Point outfall into the coastal ocean off the Palos Verdes peninsula off southern California. The program combines high resolution towed surveys of physical and bio-optical variables with continuous time series ...
Yicun Wu, Libe Washburn, Burton H. Jones
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Optimisation of dispersion parameters of Gaussian plume model for CO2 dispersion

Environmental Science and Pollution Research, 2015
The carbon capture and storage (CCS) and enhanced oil recovery (EOR) projects entail the possibility of accidental release of carbon dioxide (CO2) into the atmosphere. To quantify the spread of CO2 following such release, the 'Gaussian' dispersion model is often used to estimate the resulting CO2 concentration levels in the surroundings.
Liu, Xiong, Godbole, Ajit R, Lu, Cheng, Michal, Guillaume, Venton, Phillip   +4 more
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Predicting cooling tower plume dispersion

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1997
An assessment of the effects of visible cooling tower plumes on the local environment can be a necessary part of any proposal for a new large industrial process. Predictions of the dispersion of plumes from cooling towers are based on methods developed for chimney emissions.
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