A generic integrated water quantity and quality simulation model (IQQM
) has been implemented in several regulated river systems in New South
Wares, Australia, for water resources management planning. IQQM will
eventually comprise four main components: an instream water quantity m
odule, an instream water quality module, a rainfall-runoff/pollutant g
eneration module and a groundwater quantity and quality module, althou
gh the pollutant generation and groundwater components are currently b
eing developed. IQQM is designed to provide more reliable information
relating to issues such as environmental flows and water quality than
was possible with the monthly simulation models that have been used fo
r water resource management planning studies in NSW for almost 20 year
s. One of the river systems for which IQQM is being implemented is the
upper Hunter. One of the main roles for the Hunter IQQM will be to in
vestigate options for managing salinity in the Hunter River. implement
ation of IQQM Hunter has involved a multiple step calibration process.
A description of the model is presented, and the multiple step proces
s of calibration described. The results of model calibration are prese
nted and the quality of calibration discussed. Copyright (C) 1996 Else
vier Science Ltd.