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<br />mean annual discharge. Multiple regression techniques have yielded two <br />equations corresponding to these two flood expectancies. The resultant <br />models account for approximately 75 percent of the observed variation in <br /> <br />the response, are statistically significant at the one percent level, <br /> <br />and reproduce the observed values of the hydrologic indices with reason- <br />able accuracy. Moreover, the urbanization index is by far the most im- <br /> <br />portant predictor, although the network parameter and the pervious index <br /> <br />contribute substanti~lly to the model. Incorporation of this methodology <br />in the Metropolitan Landscape Planning Model, which is being developed <br />at the University of Massachusetts, can be expected to refine its appli- <br />cability to floodplain management in the southeastern New England region. <br />Furthermore, the rationale by which this model has been constructed is <br />recommended for the development of comparable techniques in other rapid- <br />ly growing metropolitan areas. <br /> <br />. <br />, <br /> <br />6 <br /> <br />. <br /> <br />iv <br />