. Boston Logan International Airport environmental impact study. Logan International Airport; Airports; Environmental impact statements; Harbors; Oceanography; Pollution; Pollution; Transportation. LAKESHORE TWO-DIMENSIONAL DISPERSION 505 LEGEND. SCALE' I > ZOfiOO em. FIG. 8. Comparison of maximum weighted eight hour dispersion patterns determined from Eq. 1, 2 and 3 for Frenchman Bay, June 1968 at 9 m below the sur- face. TABLE 5. Eight hour area comparisons. Method Equation 1 x 107 cm2 Equation 2 x 10' cm2 Equation 3 x 10' cm2 Minimum Mean Maximum 6,600 5,200 6,
. Boston Logan International Airport environmental impact study. Logan International Airport; Airports; Environmental impact statements; Harbors; Oceanography; Pollution; Pollution; Transportation. LAKESHORE TWO-DIMENSIONAL DISPERSION 505 LEGEND. SCALE' I > ZOfiOO em. FIG. 8. Comparison of maximum weighted eight hour dispersion patterns determined from Eq. 1, 2 and 3 for Frenchman Bay, June 1968 at 9 m below the sur- face. TABLE 5. Eight hour area comparisons. Method Equation 1 x 107 cm2 Equation 2 x 10' cm2 Equation 3 x 10' cm2 Minimum Mean Maximum 6,600 5,200 6,000 patterns. The results of ap- plying Equations 1, 2 and 3 to the data to determine minimum, mean and maximum 8 hr dis- persion patterns appear in Figs. 3, 7 and 8. The areas defined by the different methods appear in Table 5. Examples of the maximum and minimum conditions found using the third method mentioned above for an 8 hr period appear in Figs. 9 and 10. Once again, the area is defined by the various hourly contours which are representative of the dispersion characteristics. The areas defined by this method appear in Fig. 11 for the maximum and minimum power at four differ- ent locations on Lakes Erie and Ontario. It will be noticed that a power rela- tionship exists once again for a maximum and minimum condition, but that the slopes do not vary as widely as those of the mean, although the intercepts are more variable. SUMMABY AND CONCLUSIONS The Markov chain analytical technique has been demonstrated as a reasonable method for determining two-dimensional dispersion characteristics. 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
