1. Developing a GUI for modeling the water quality of the
“52°North” Dinkel river
Interim Report
Team
Amos Kabo-Bah
Zun Yin
Supervisors: Chris Mannaerts, Suhyb Salama, Rob Lemmens, Martin Schouwenburg
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
2. -Background
1.0 Introduction
-Study Area
-Rationale
Outline of Presentation
-Objectives
-Selection Criteria for Models
2.0 Methodology
-OTIS & FEQ Model
-General Procedure
3.0 Preliminary Results
4.0 Work in Progress
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
3. 1.1 Background
1. Freshwater is an essential and finite resource; adequate quantity
and quality are crucial for sustainable socio-economic development in
every nation (Bartram and Ballance, 1996).
2. Planning and monitoring schemes are required to regularly check the
quality and quantity of our water bodies in our cities, towns and villages
(Loucks et al., 2005)
3. Geo-information Science (GIS) and remote sensing techniques provide
a unique opportunity to monitor and assess water quality in space and
time
4. The availability of open source GIS tools and water quality models
provide another opportunity to reduce the cost of water quality modelling
of small rivers.
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
4. 1.2 Study Area
Basin area = 643sq.km
Total length = 93km
Elevation = 15m – 110m
Rainfall = 750- 800mm/yr
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
5. 1.3 Rationale
1. Water quality modelling for small rivers has been
given little attention compared to large rivers
(Marsili-Libelli and Giusti, 2008)
2. Limitations of existing models for water quality
modelling
3. Existing Capabilities of ILWIS Open
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
6. 1.5 Objectives
To develop a GUI for handling water quality modelling in ILWIS Open
for the Dinkel River
b. To identify an appropriate hydro-transport and water quality
model for study area
c. To couple these models together and integrate this finished
model in ILWIS using a GUI
d. To perform calibration and validation of this model
e. To document a user’s guide manual for the GUI for water quality
modelling
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
7. 2.0 Methodology
2.1 Selection Criteria for Models
1. Must be open source models
2. Useful for practical applications
–discussion with Regge & Dinkel Water board
FEQ
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
8. Main Equations 2.2 OTIS Model
1
Advection
2 (Runkel and Broshears, 1991)
Dispersion
Transient Storage Mechanisms
Physical & Chemical Processes
Transient
storage
a
Lateral flows
Sorption
Decay
b
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
9. 2.2 FEQ Model
The Full EQuations (FEQ) model is a computer program for
solution of the full, dynamic equations of motion for one-
dimensional unsteady flow in open channels and through control
structures. (Gordon, 1997)
Main Equation
The two fundamental equation for unsteady flow simulation are
∂Q ∂y ∂Q 2
•Momentum Equation + gA + = gA( S 0 − S f )
∂t ∂x A∂x
∂A ∂Q
•Continuity Equation + =q
∂t ∂x
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
10. 2.3 General Procedure
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
11. 2.3 General Procedure
Hydro preprocessing
Network splitting
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
12. 3.0 Preliminary Results
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
14. Work in Progress
1.Integration of GUI into ILWIS
Time Frame
2.Documentation
Completion of work in March 2010
52°North Student Innovation Prize for Geo-informatics
November 24, 2009
