This report describes methods for quantitative regional assessment developed by the Regional Vulnerability Assessment (ReVA) program. The goal of ReVA is to develop regional-scale assessments of the magnitude, extent, distribution, and uncertainty of current and anticipated environmental vulnerabilities. ReVA: provides regional data on stressors and sensitive resources; develops techniques to integrate information on exposure and effects; evaluates potential environmental changes under alternative future scenarios; evaluates alternative environmental policies; develops techniques to prioritize areas for ecological restoration; and identifies information gaps. These integrated assessments and comparisons provide a framework for assessing relative risk and prioritizing management actions. For example, areas may be identified and prioritized for ecological restoration. This framework also facilitates communication and dialogue regarding economic and quality of life trade-offs associated with alternative environmental policies. To achieve these goals, ReVA has developed a number of integration methods. This report will describe each of the integration methods, their advantages and disadvantages for integrated assessment, and make recommendations for development and application.

"EPA/600/R-03/082." "October 2003"--Page 4 of cover Includes bibliographical references (pages 71-77).