1) RIBASIM is a river basin simulation modeling system used to balance water supply and demand. 2) The document provides an overview of RIBASIM version 7.01 and its components for modeling hydrology, water usage, management measures, and other factors within a river basin system. 3) RIBASIM can generate outputs such as water balance, reservoir behavior over time, crop production costs, and flow composition to help assess supply reliability and support integrated water resource management planning.

1. Oct 2017
Introduction to River Basin Simulation
Model RIBASIM Version 7.01
Wil N.M. van der Krogt
Deltares
the Netherlands

2. Oct 2017
A river basin = an area of land where
surface water from rain and melting snow
or ice converges to a single point at a
lower elevation, usually the exit of the
basin, where the waters join another water
body, such as a river, lake, reservoir,
estuary, wetland, sea, or ocean.
Other names: (sub-)catchment, drainage
area, watershed
River basin =
whole Nile or just
part within Egypt

3. Average water balance (Mcm) over the year (POS)
0.00
100.00
200.00
300.00
400.00
500.00
600.00
700.00
800.00
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1/2 month
Mcm
Demand (Total)
Q Average
Q80
Rain Fall
Progo-Opak-Serang river basins (Indonesia)
Critical period
Oct 2017

4. Why balance: the Water Balancing Act
Oct 2017
Demand
• Population growth
• Increased irrigation
• Increased hydro-power
• Environmental awareness
Supply
• Quantity (scarcity,
upstream developments)
• Quality Degradation
(morphology)
• Cost of Options
Any basin
RIBASIM: tool for balancing water supply and demand
IWRM
Measures
Measures

5. Morocco
Nile
Oct 2017

6. 20101950
demand
year
20302010 2050
DMIdemandAvailablewater Introduction R I B A S I M
Hydrological scenario

7. Results
• Many typical parameters:
• % of time steps that a shortage occurs for various users
(supply reliability) like irrigation, firm energy, minimum flow
requirements, domestic, municipal and industrial use
• Energy production (firm, sec.) and consumption
• Flow and flow composition at any location and time
• Water balance on various spatial and temporal levels
• Reservoir behaviour over time
• Crop yield and crop production costs
• Water quality parameters
• …
• Format of maps, reports, charts.
Introduction R I B A S I M

8. RIBASIM modeling system
Modelling components in RIBASIM
Graphical User Interface and Analysis Framework
Post-processors and utilities generate maps, graphs, reports
DMI : Domestic, Municipal and Industrial use
Incl.
operation
Based on
priorities
WFD Explorer
MODFLOW
model DELWAQ
model
RibSERES
model
WFlow
model
Delft-FEWS
Oct 2017

9. Model data base
for base year 2016
RIBASIM 7
Water demand,
-allocation and quality
Historical
time series
data
Result files
Results
Socio- economic
scenarios
and strategy
data files
and strategy
data files
Measure and strategy
data
Agriculture
sector
scenarios
Climate change
data files
Climate change
data files
Change of
hydrological data
Climate change
scenarios
Interventions,
management
actions
Agriculture
dataAgriculture
dataLoads and
concentration
data
Land-use and
population data
2010 - 2050
Land-use and
population data
2010 - 2050Crop plan
data
Land-use and
population data
2010 - 2050
Land-use and
population data
2010 - 2050
Land-use and
population data
2020 - 2050
Basic water
quality
scenarios
Hydrological
scenarios
Oct 2017

10. For information
• Recent World Bank report on evaluation on “Water Resources
Software, Application overview and review”, by Carter Borden, Anju
Gaur and Chabungbam R. Singh, March 2016
• Recommends RIBASIM
Oct 2017

11. Oct 2017
www.deltares.nl/en/software/ribasim/
Finish