This paper describes ArcView nopoint source modeling
(AVNPSM), a Windows-based interface between
ArcView GIS and AGNPS for watershed analysis and
nonpoint source modeling, and discusses its application
through a case study (He et al., 2001). The AVNPSM,
while designed for the single event AGNPS, enables
users to process, check, and edit input files, display output
files in map format, and execute model simulation
through a pull-down menu within ArcView GIS. It is a
useful tool to facilitate the use of AnnAGNPS as its
input, output, and statistical modules can be directly utilized
with the AnnAGNPS.