Continental demo site

Berlin-Brandenburg, DE

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Situation:

The metropolitan Berlin-Brandenburg region in the north-eastern German lowlands has a relatively high surface area of rivers and lakes, but natural flow is low and precipitation is decreasing.

The city of Berlin and its metropolitan region rely on groundwater as the drinking water production source. Treated wastewater is currently released back into the local freshwaters, resulting in a partially closed water management cycle within the city area. Brandenburg state has a higher reliance on water for agriculture and ecosystems. The rising pressure of climate change is impacting the natural water cycle.

PROGNOSIS

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reduction of summertime natural surface water runoff by 2040

Contact this team | Kontaktieren Sie dieses Team :

  • Daniel Wicke – daniel.wicke[@]kompetenz-wasser.de

Issues:

Water stress

Water usage conflicts

New policies required

Ambitions within IMPETUS:

Map the trans-regional water cycle and water balance

(quantitative and qualitative)

Assess cross-sectoral, trans-regional vulnerability of critical water usages

Define and assess future scenarios including cross-sectoral water usage

Simulate future regional water balance scenarios

Reduce uncertainties in scientific models and analytical tools

Integrate data, models, tools and simulations in a Resilience Knowledge Booster

as a regional ‘toolbox’ and known information source

to pave the way for:

Establishment of a regional water board

(across federal state boundaries), negotiating water rights based on supply-demand scenarios

Vulnerability assessment and prioritisation of water usage

for various scenarios

Region to serve as a ‘lighthouse’ in the national water strategy

best-practice examples

Continuation of the Resilience Knowledge Booster

for regional and international adaptation activities.

Test solutions:

Integrated mapping and regional watershed modelling

Technology Readiness Level 7-9

Based on surface water, ground water and soil model coupling, this technology involves the operation of monitoring networks and the application of HYDRAX / QSIM / MODFLOW models to assess and manage water bodies and comply with the water framework directive.

In IMPETUS

  • Over these modelling tools, analytical tools will be developed to assess regional water flows across the environmental compartments.
  • SWAT+, FREEWAT and zeHGW models will be integrated for surface water-groundwater interaction.
  • Earth data will be included for the projection of water levels and to assess impacts on land use.
  • Scenarios of management of upstream surface water levels and waste water discharges to the Spree-Havel river system will be simulated.

This work is linked with:

Economic impact assessment of physical climate risk

Technology Readiness Level 4-5

Socio-Economic tools and risk projections enable the assessment of climate risks and the establishment of projections and metrics regarding future investments.

In IMPETUS

  • Identify highly vulnerable hot-spots using open datasets for Copernicus services and satellite-derived variables.
  • Transform this knowledge into a specific regional model and include this in the Resilience Knowledge Booster.
  • Use the RKB and regional model to elaborate economic assessment metrics to aid decision making about investments and future mitigation plans.

This work is linked with:

  • European Investment Bank
  • European Central Bank
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