Author(s)

Jaewan Yoon

Abstract

Methods were developed for directly linking the distributed parameter model, AGNPS with a Geographic Information System (GIS) and a relational database management system (RDBMS) to investigate a nonpoint source pollution problem. AGNPS (Agricultural Nonpoint Source model) is an event-based model that simulates runoff and the transport of sediment and pollutants from mainly agricultural watersheds. Distributed parameter models such as AGNPS are often applied to large problem domains. Linking such models to GIS and database management system can facilitate better data storage, manipulation and analysis than conventional methods. In this study, rather than manually implementing AGNPS, extracted data are integrated in an

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