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FEWS-OMS
Operational & Water Quality Management System
for Marina Bay – Singapore
Ms. Elizabeth Lee
Dr. Hans Eikaas
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Closing the Water LoopPUB manages the complete water cycle from sourcing, collection, purification and
supply of drinking water, to treatment of used water and turning it into NEWater.
Ind i rec t Po ta b le
U se
Direct Non-
Potable Use
Rain Sea
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Singapore River
40 years ago
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Floods were common occurrences…
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Public health
conditions were poor…
Proper sanitary facilities
was lacking…
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And rivers were polluted.
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Dredging and
improvement works…
Laying new
sewers…
Resettling squatters into
proper public housing…
Relocating businesses
and industries into proper facilities…
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Transformation of Singapore River
1970s 1990s
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Construction Progress of Marina Barrage
MarinaChannel
Sea
Marina South
Marina East
•Construction of drainage
pumping station and exhibition
gallery/F&B outlets in progress
• 4 of the 9 crest gates installed,
tested and put into operation
•Boat Hoist in operation
• Phase 2 cofferdam construction
substantially completed
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Marina Bay Developments
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• Singapore River Raft Race
• Formula One Boat Races
• Wakeboarding• Sailing
Marina Bay Activities
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Upper Upper
Peirce Reservoir Peirce Reservoir
Lower Lower
PeircePeirce
Reservoir Reservoir
Marina
Bay
Kallang
Basin
MacRitchieMacRitchie
Reservoir Reservoir
Ang Mo Kio
New Town
BishanNew Town
Singapore
Botanic
Gardens
Kg Ubi
Ind. Est
Queenstown
New Town
Turf
City
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Integrated Catchment Water Quality ManagementProgramme
Source Control (Sewer Rehabilitation, Silt Control)
Surveillance &
Enforcement (Housekeeping of
Industrial
Premises/Eating
Establishments)
Water Quality
Studies,
Predictive
Modeling of
Water Quality
Evaluation of
source control
& mitigation
measures
R&D on long
term solution
Technology &
International
Experts
3P Involvement
Engaging the
community
Shared ownership of
water resources
Public Education
Mitigation
Measures(ABC Waters
Programme,
RecirculationStrategy, etc)
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Marina Barrage FEWS – OMS – Singapore
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Monitoring
Forecasting
Prediction &
Warning Response
• Integrated Operational Water Quality Management Tool:
• Current State:
• Water Quality Parameters
• Water Fractions• Maintaining Numerical Models
• Predictions:
• Short term
• Storm coming?
• Sea levels?
• Water Quality Parameters?• Medium term
• Global Weather Prediction + WQ model
Current
Predicted
What is FEWS – OMS Singapore?
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What is the purpose?
• Integrated Water Quality and Quantity (flooding) system to
aid the operation of the Marina Reservoir and its Catchment
• Water quality decisions may influence flood risk• Operators need to be aware of influence of operation on
both water quality and risk of flooding.
Reservoir Sea Astronomical + Surge
MarinaReservoir
Catchment
AtmosphericDeposition
Operation rules
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M i R i D F d
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Marina Reservoir Data Feed
• Historical and Real-Time Data useable for daily operation
• OMS Needs
• Location + parameters
• Data formats + delivery method (FTP, link to SQLetc)
• Gauge Information
• PUB/NEA/NTU/CWR gauge data (WQ & Q)
• LDS, Divers
• PUB Reservoir data
• Barrier – Gates / Pumps status
• Forecast data
• TMSI radar (Hours)
• TMSI High resolution Numerical Weather Prediction
(NWP) – 3 Days• Medium range weather forecasts (GSF global model data)
7 Days, 3 hour time-steps
P i d
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Processing data …
Validation and Quality Check:
Checks on range, rate of
change, constant values etc.
Filling gaps in data
Interpolation module
• Linear & block interpolation
• Spatial interpolation
• Preparation for models
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Radar RealRadar Real--
timetime
ReanalysisReanalysis
Observed Forecast
HistoricHistoric
NWP, global 10 daysNWP, global 10 days
RainRain--gaugegauge
NWP, high 3 daysNWP, high 3 days
Radar, hoursRadar, hours
Backup data
Water Quality DataWater Quality Data Predicted Water QualityPredicted Water Quality
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FCBSecchiTSSDODO TopChlaTPTNLocation
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1000073160Southern part, MR06
4000078120Nothern part, MR04
Marina Channel:
8270085322Outer part, MR07
193140086384Inner part, MR09
350412041475Rochor Canal
342901
88343Geylang River
553230092624Kallang River
Kallang Basin:
1200006730Outer part, MR03
100005300Inner part, MR01
20010068140Singapore River
Singapore Basin:
FCBSecchi
Depth
TSSDO
Bottom
DO TopChlaTPTNLocation
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Thank You
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