delta programme| freshwater · • final assessment of bottlenecks based on latest delta...

Delta Programme| Freshwater

Luit-Jan Dijkhuis

Venice, 14 October 2011

Ministerie van Verkeer en Waterstaat

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Flood control


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Agriculture


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Navigation


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Nature


Zwemverbod langs IJmeer na dood honden AMSTERDAM Op verschillende plaatsen langs het IJmeer zijn afgelopen weekeinde zwem- en gebiedsverboden afgekondigd. Volkskrant 23-05-2011

Ook dit jaar dreigen de dijken te verdrogen Sinds deze week worden zelfs met klei verstevigde veendijken besproeid, beducht als men is voor een schuivende dijk a la Wilnis. En het is pas mei. Volkskrant, 21-05-2011

Zoet water naar droge gebieden gepompt Het gemaal De Aanvoerder in Utrecht pompt sinds gistermiddag water uit het Amsterdam- Rijnkanaal naar het westen van Nederland om de droogte te bestrijden. NRC Handelsblad 20-05-2011

Zout slootwater bevalt lelies en anjers niet Kwekers: Waterschappen te traag met actie tegen droogte

Trouw

21-05-2011

Waterteam bekijkt uitzonderlijke droogte Het Management Team Watertekorten (MTW) is donderdag voor het eerst sinds 2003 bijeen geweest voor een bespreking vanwege de uitzonderlijke en aanhoudende droogte. Binnenlandsbestuur, 30-05-2011

Tekort aan zoet water dreigt door droogte Door de aanhoudende droogte dreigt in Zuid-Holland een tekort aan zoet water te ontstaan. In onze regio gaan daarom vanaf vrijdag de Haringvlietsluizen minder vaak open. RTV 27-05-2011

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Headlines on Drought in news papers


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Content presentation

• Delta Programme

• Goal and task

• Planning and process

• Results

• Developing goals and strategies


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Delta Programme

1 Delta Programme

5 Delta Decisions 2014

9 Sub Programme’s, 4 phases

http://www.deltacommissaris.nl/english/Images/11%23094%20Deltaprogramma%202012_EN_def%20internet_tcm310-307583.pdf

http://www.deltacommissaris.nl/english/Images/11




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Goal and Task

Goal:

• Sustainable freshwater management, now and in 2050.

Task:

• Develop strategies for Freshwater management in the Netherlands in 2050.

• Identify short term (2015) no-regret measures.


Starting points

• Carried out for the whole country

• Delta scenario’s and Delta model are used

• Three years used: normal, dry and extreme dry

• Definition: Bottleneck if water demand > water availability

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moderate fast

low

high

Steam

Warm Quiet

Pressure

climate change

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Planning Delta programme Freshwater

Phase 1, Mid 2011

• Understanding of development of water demand and water supply

• First assessment of bottlenecks

Phase 2, Mid 2012

• Reassessment of bottlenecks, insight in problems regarding the ambitions

• Explore possible strategies

Phase 3, Mid 2013

• Final assessment of bottlenecks based on latest Delta scenario's and Delta model

• Most likely strategies, including measures, instruments and costs

• Possible Delta Decisions

Phase 4, Mid 2014

• Preferable strategies Freshwater, including measures, instruments and costs

• Proposal for final Delta Decision


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Seven sub regions

• Main and regional water system • Joint fact finding • Full support of regions • Consensus • Additional research


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Strategy: Policy options which guide the use of measures and instruments

Goal: Desired balanced situation between water demand and water supply in 2050


Current strategy and goal

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Goal

Strategy

Current goal • Water availability is guaranteed by water authorities • “ Enough fresh water, of good quality, on the right place, and at the right moment”• “Enough fresh water for all water users during the year”

Current Strategy • Use current infrastructure to provide fresh water • In case of drought use priority list • Use of instruments: permits (groundwater and surface water)• Accept financial losses


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First results No fresh water supply possible

Not enough freshwater in the rivers and canals

Water demand > water availability

Salt water intrusion in fresh water system


Current strategy and goal are not sustainable !!

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Next steps

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Short term:

• Enlarge the flexibility of the water system

• Check feasibility of measures:

– Flexible water level management

– Extra water supply infrastructure

– Small scale water retention

– Water demand management

– …

Long term:

• Develop goals focused on sustainable and appropriate freshwater supply

• Develop strategies to achieve the formulated goals


New goals and strategies are needed!

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Current strategy

Current goal

Goal n + 1 Goal 1

Strategy n + 1

Strategy 1

Split into 3 parts: 1. (Im)possibilities current goal and strategy (2011) 2. Explore new goals 3. Develop new strategies


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How does this work out?

Goal 1 Goal n + 1

Strategy1 Strategy

n + 1

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Future perspectives

Current goal

Current strategy

Bottlenecks


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2010 2050

Bottleneck

Scenario’s

Possible bottlenecks and scenario’s Based on current goal and strategy

Water scarcity

Accepted financial losses


2010 2050

Bottleneck

Scenario

Possible strategies and tasks

Task

Desired fresh water availability

Strategies

Accepted financial losses


Possible strategies

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Public

Private

Water driven/ Functionality follows

Functionality driven/ Water follows

Adaptive land use planning

Water availability is guaranteed by water authorities

User adapts to water

Water distributing company takes water to user


Result

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Possible strategies including draft goals

November 2011 Spring 2012

Current strategy

Current goal

Goal n + 1 Goal 1

Strategy n + 1 Strategy 1


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International

Thank you for your attention

delta programme| freshwater · • final assessment of bottlenecks based on latest delta...

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