in co-operation with building blocks of an integrated ... · 2nd apws building blocks of a...
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
In co-operation with
BUILDING BLOCKS OF ANINTEGRATED FRAMEWORK
FOR EFFECTIVE WATER RESOURCES MANAGEMENT
Hans KorvingWitteveen+Bos
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Building blocks of a framework for effective water resources management2nd APWS
My background
Hans Korving Ccivil engineer, PhD in mathematics 15 years experience in data science for water and
delta technology Witteveen+Bos Consultancy and engineering firm Areas of expertise: water, infrastructure,
environment and construction Business unit Coasts, rivers and land reclamation
TU Delft Delft Institute of Applied Mathematics Focus area: data assimilation
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Outline
Framework for water resources management Use case 1: Amsterdam water quality management integrating data from different sources
Use case 2: Utrecht sewer system management real time model calibration integrating data and models
Future perspective integrated data and modelling framework research project in Delft city centre
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Building blocks of a framework for effective water resources management2nd APWS
Integrated water resource modeling
This means: Water quantity and water quality Water needs (droughts) and water safety (flood) Planning (mid/long term) and early warning (fast) Forecasting, decision support and crisis
management
This all needs: Good/validated monitoring data Supported by simulation tools (1d/2d-models, DSS)
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Building blocks of a framework for effective water resources management2nd APWS
Good/validated monitoring data
Select need for monitoring data (is historic data not available or not enough for prediction)
What kind of data is needed: weather forecasting, rainfall runoff, flow, water quality, waterlevel, flooding, sewer, etc.?
Select type of monitoring data: sensor, satellite, social media, etc.
Install, monitor, calibrate, etc. sensors (real time) Data validation/assimilation of online
data Regular evaluation of monitoring program and
sensoring2 examples/caes of monitoring optimization
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Building blocks of a framework for effective water resources management2nd APWS
Modeling tools
Weather forecasting: need for: expected precipitation/evaporation in coming 14 days and 3 months: based on satellite data, in combination with monitored rainfall/evaporation/irradiation and regional or global weather forecasting models
Rainfall Runoff: need for estimated flow at end of a watershed: based on precipitation/evaporation, area size, soil type, land use, groundwater, and rainfall runoff simulation (black box, statistical or more fysical approach)
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Building blocks of a framework for effective water resources management2nd APWS
Modeling tools
River transport: need for forecasted waterlevels and flow at crucial locations: Based on online monitoring of waterlevel and flow in combination with 1D/2D combined modeling. Newest simulation models can automatically swith from 1D to 2D in situations of over land flooding
Flood management: Disaster management demands for estimations of flooding (where, when, how long, how deep, economic and social costs) to decide on controlled flooding elsewhere, temporary dike improvement, etc.
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Building blocks of a framework for effective water resources management2nd APWS
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Building blocks of a framework for effective water resources management2nd APWS
Modeling tools
Water quallity: need for estimation of changes in salinity, oxygen problems due to (organic) pollution, accidental pollutions; based on monitoring of pollution in combination with water quality simulaton model, predicting the progression of the pollution and the effect of certain measures (flushing, re-routing, etc.)
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Building blocks of a framework for effective water resources management2nd APWS
Rainfall RunoffIN
Q plus concentration
OU
T
Water quality calculation based on mixing and processes
Industry and domesticsupply
Sea conditions
River 1D sectionsRiver 1D structures
River 1D model
Q plus concentration Q plus concentration
mod
el
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Building blocks of a framework for effective water resources management2nd APWS
Integrated Modeling approach
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Use case 1: Amsterdam
photo: Albert Jan Perrier
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Flushing the canal system
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Our questions
Can the flushing regime be optimised? What is the impact of flushing on oxygen balance? What is the impact of flushing on light climate? What is the origin of water at a specific location?
Can the system behaviour be described using a limited number of stations and additional monitoring vessels?
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Monitoring system
monitoring location
Hortus bridge
Berlage bridge
Pumping station Zeeburg
Lijnbaansgracht
system boundary
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Sensors
Multi probe oxygen temperature conductivity turbidity
Redox sonde
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Monitoring vessel
pump
multi probe
data logger
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Building blocks of a framework for effective water resources management2nd APWS
Data validation
Automatic algorithms (both real time and offline) missing data outliers (linear) trends signal variance spatial correlations mobile and nearby stationary sensors
Also accounting for cleaning and recalibration actions pollution and bio-fouling using manual checks
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Real time validation
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Data integration - conductivity
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013Nov 10-14. 2011: DRY
Conductivity
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Impact of sluices in IJmuiden
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013Nov 10-14. 2011: DRY
Oxygen
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013Aug 1, 2011: WET
Oxygen
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Conclusions use case 1
Monitoring of proxies provides enough understanding of the water flows in the Amsterdam canals
The canal system behaves like a (inter)tidal zone
The water quality in the canal system can be described with a limited number of stations and a boat
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Use case 2: Utrecht
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Building blocks of a framework for effective water resources management2nd APWS
Catchment Prof Fuchslaan
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
In-sewer defects
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
In-sewer defects
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Monitoring network
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Monitoring data
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Model calibration
1st: Genetic algorithm2nd: Levenberg Marquart
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Calibration result
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Conclusions use case 2
Real time model calibration is an effective tool to identify in-sewer defects schedule maintenance
The impact of in-sewer defects varies in time
Time-varying fouling affects calibrations results
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Future perspective
@ TRANSLATE + ADD ASSIMILATION
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Data-assimilation
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS May 16, 2013
Example: storm surge forecasting
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Building blocks of a framework for effective water resources management2nd APWS
Open interface standard for data assimilation Quick implementation of data assimilation for
arbitrary numerical models
Implementation in research project Delft Management of pluvial flooding in city centre Co-operation of management authorities, TU Delft
and Witteveen+Bos
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS
Data assimilation: possibilities
Real time modeling Forecasting Early warning Real time control
Re-analysis Optimisation of control Planning of management
May 16, 2013
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Building blocks of a framework for effective water resources management2nd APWS May 16, [email protected]
Questions?