. Boston Logan International Airport environmental impact study. Logan International Airport; Airports; Environmental impact statements; Harbors; Oceanography; Pollution; Pollution; Transportation. HY 8 DISPERSION PREDICTION 1669 anceof the displacement in the north-south direction in cm2; f/, = resultant ve- locity in cm per sec;/>(*,, x2) = probability of finding a marked fluid particle at a point a,, x3; and t = time in sec. Eq. 1 is a special solution of the general equation [(4) P- 325]: d2P - aP - U, — 1 ax, a*, , (2) In which t = the diffusion coefficient. This is the classical di
. Boston Logan International Airport environmental impact study. Logan International Airport; Airports; Environmental impact statements; Harbors; Oceanography; Pollution; Pollution; Transportation. HY 8 DISPERSION PREDICTION 1669 anceof the displacement in the north-south direction in cm2; f/, = resultant ve- locity in cm per sec;/>(*,, x2) = probability of finding a marked fluid particle at a point a,, x3; and t = time in sec. Eq. 1 is a special solution of the general equation [(4) P- 325]: d2P - aP - U, — 1 ax, a*, , (2) In which t = the diffusion coefficient. This is the classical diffusion equation for molecules and heat in an isotropic medium which states that quantities move down concentration gradients. The diffusion coefficient is a function of. FIG. : SEPTEMBER, 19C8 (meter 022) direction only for the particular time period under analysis. To obtain disper- sion plumes from the two-dimensional (north-south and east-west) current meter records, it is necessary to assume that the dispersion is described by the two horizontal diffusion coefficients, and that the coefficients remain con- stant throughout the plume. The first assumption of two-dimensionality is not serious, provided that reasonably long time periods are considered so that the distribution with depth is uniform, or conversely that the distances are far enough from the source such that the depth scale of 13 m is not significant. The second assumption that the diffusion coefficients are reasonably constant with distance from the source can be justified by developing the coefficients F-4. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Massachusetts Port Authority.
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Keywords: ., boo, bookcentury1900, booksubjectharbors, booksubjectoceanography
