Reports and Papers
- Fedra, K. and Jamieson, D.G.
- An object-oriented approach to model integration:
a river basin information system example.
In: Kovar, K. and Nachtnebel, H.P. [eds.]:
IAHS Publ. no 235, p669-676.
The WaterWare system
Developed originally within the framework of a EUREKA project
(EU 487), and in a case study of river Thames,
WaterWare has been further developed for applications to the
Lerma basin in Mexico in a project
with the National Water Commission (Jamieson and Fedra, 1995),
and both the West Bank and the Gaza strip in
Palestine ,
in a project with the Palestinian Hydrology Group
(Jamieson and Fedra, 1996b).
The system is based on a modular framework of GIS and data bases,
that allows to link various simulation and optimization models into
this framework, providing a common user interface and consistent,
shared data resources as well as mechanisms for the communication
between the modules of the system (Jamieson and Fedra, 1996a).
From a users point of view, {\sf WaterWare}
consists of a central information systems component with GIS and
data bases as well as the multi-media hypertext system,
that provides background information and describes a specific river basin.
Linked to this data layer are a set of models, that can perform scenario
analysis, i.e., answer WHAT--IF and HOW--TO questions for various
water quantity and quality issues, as well as related engineering,
environmental, and economic aspects (Fedra and Jamieson, 1996).
WaterWare currently includes a dynamic (daily) rainfall-runoff model;
an irrigation water demand estimation model based on FAO's CROPWAT;
a 2D, vertically integrated finite-difference groundwater flow and
transport model; a dynamic water resources model; and both a stochastic
and a dynamic river water quality model, that use a waste load allocation
optimization model as a post-processor, and a rule-based environmental
impact assessment expert system.
These tools are embedded into a user interface that translates the
specific functionality of a given model into a decision
support tool: the component models and tools are restructured in terms of
decision variables and performance variables, relating to the objectives,
criteria, and constraints of various tasks and decision problems.
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