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Daan Rooze
Climate Adaptation and Urban Nature Based Solutions
29-11-2023
Climate Resilient Cities Tool
(CRC Tool)
Flooding (coastal, fluvial, pluvial, groundwater)
2
DSD-INT
2023
|
Climate
Adaptation
Symposium
Drought
3
DSD-INT
2023
|
Climate
Adaptation
Symposium
Heat stress
4
DSD-INT
2023
|
Climate
Adaptation
Symposium
Context for Adaptation
Climate change:
• Increase in temperature
• Increase rainfall intensity
• Sea level rise
• Increase in drought in many areas
Continuous population growth and urbanization:
• Land use change:
• Reduced infiltration and increased runoff and
discharge
• Increased urban heat island effect
• Increased water demand
Cities have been designed for current or past
conditions => retrofitting
DSD-INT
2023
|
Climate
Adaptation
Symposium
5
Water Sensitive Urban Design
7
DSD-INT
2023
|
Climate
Adaptation
Symposium
Retain – Store - Drain strategy
Retain and Detain and Store at the source to avoid overloading the drainage capacity downstream
8
+ use
+ resist
DSD-INT
2023
|
Climate
Adaptation
Symposium
Urban Nature Based solutions – Sponge cities
Urban Nature-based solutions (NBS) refers to the sustainable management and use of nature (e.g.
Green Infrastructure) for tackling societal challenges.
• Effective in climate adaptation
• Co-benefits
• Adding function to green
In practice both soft and hard engineering solutions.
DSD-INT
2023
|
Climate
Adaptation
Symposium
9
NBS can have different functions and can provide
various co-benefits
Urban context:
The provision of ecosystem services in cities
depends on the quality and quantity of urban
green infrastructure. Green infrastructure
includes parks, gardens, urban allotments,
urban forests, wetlands, lakes and ponds in
cities, but also the natural areas – such as
forests, mountains and wetlands –
surrounding urban spaces.
10
DSD-INT
2023
|
Climate
Adaptation
Symposium
Urban NBS at Deltares
• Quantification of the (physical) effects of Urban NBS in models
− Hybrid blue-green grey smart solutions development
• NBS as part of the larger system
− Urban NBS, in combination with stormwater, coastal and river flooding
− Effect of upscaling of urban NBS
− NBS as infrastructure and as part of landscape
• Monitoring the effectiveness of urban NBS
− Water quantity and water quality
− Monitoring using citizen science and long-term follow up
• Supporting stakeholder processes
− Tools and workshops
11
DSD-INT
2023
|
Climate
Adaptation
Symposium
Climate adaptation – Stakeholder engagement
Minimizing:
• Flooding
• Heat stress
• Drought
Maximizing:
• Livability / urban regeneration
• Health potential
• Sustainable economic development
In existing cities climate adaptation involves many stakeholders:
urban planners, drainage departments, road department, landscape designers,
project developers, housing corporations, etc.
Co-creation as part of stakeholder engagement
12
DSD-INT
2023
|
Climate
Adaptation
Symposium
Climate Resilient Cities Tool (https://crctool.org/en/)
Assist stakeholders (urban planners, drainage departments, municipalities, landscape designers,
project developers, housing corporations, etc.)
in the process of decision making and
enabling a collaborative design process towards more resilient cities.
13
DSD-INT
2023
|
Climate
Adaptation
Symposium
CRC Tool: Workshop in Athens, 15 November 2023
14
DSD-INT
2023
|
Climate
Adaptation
Symposium
CRC Tool: Workshop in Athens, 15 November 2023
15
DSD-INT
2023
|
Climate
Adaptation
Symposium
CRC Tool: User interface
Applied
measures Map window
Key
performance
indicators
DSD-INT
2023
|
Climate
Adaptation
Symposium
16
CRC Tool: 60 Adaptation measures
DSD-INT
2023
|
Climate
Adaptation
Symposium
17
CRC Tool: In the adaptation process
Analysis:
- Hazard
- Risk
Method:
Hydraulic model,
heat stress
model, …
Exploration:
- Possible
adaptation
options with
stakeholders
Method:
CRCTool
Design:
- Detailed effect
of adaptation
measures
Method:
Hydraulic model,
heat stress
model, …
DSD-INT
2023
|
Climate
Adaptation
Symposium
19
Underlying parameters, conceptual model of CRC Tool
Urban Water Balance model
22
The hydrological effects of the
adaptation measures are determined
by means of a multi-reservoir water
balance rainfall-runoff model
based on 30-years timeseries of
meteorological data
• Hydrological boundary
conditions of the water balance
model are based on local conditions
• Runoff is calculated for measures
with varying storage depths and
rainfall events with varying
intensities with known return
periods.
Applied multi-reservoir water balance rainfall-runoff model. A more
detailed description of this model in Van de Ven et al. [2016]
DSD-INT
2023
|
Climate
Adaptation
Symposium
Demo
23
DSD-INT
2023
|
Climate
Adaptation
Symposium
Contact
www.deltares.nl
info@deltares.nl
@deltares
@deltares
linkedin.com/company/deltares
facebook.com/deltaresNL

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DSD-INT 2023 Demo Climate Resilient Cities Tool (CRC Tool) - Rooze

  • 1. Daan Rooze Climate Adaptation and Urban Nature Based Solutions 29-11-2023 Climate Resilient Cities Tool (CRC Tool)
  • 2. Flooding (coastal, fluvial, pluvial, groundwater) 2 DSD-INT 2023 | Climate Adaptation Symposium
  • 5. Context for Adaptation Climate change: • Increase in temperature • Increase rainfall intensity • Sea level rise • Increase in drought in many areas Continuous population growth and urbanization: • Land use change: • Reduced infiltration and increased runoff and discharge • Increased urban heat island effect • Increased water demand Cities have been designed for current or past conditions => retrofitting DSD-INT 2023 | Climate Adaptation Symposium 5
  • 6. Water Sensitive Urban Design 7 DSD-INT 2023 | Climate Adaptation Symposium
  • 7. Retain – Store - Drain strategy Retain and Detain and Store at the source to avoid overloading the drainage capacity downstream 8 + use + resist DSD-INT 2023 | Climate Adaptation Symposium
  • 8. Urban Nature Based solutions – Sponge cities Urban Nature-based solutions (NBS) refers to the sustainable management and use of nature (e.g. Green Infrastructure) for tackling societal challenges. • Effective in climate adaptation • Co-benefits • Adding function to green In practice both soft and hard engineering solutions. DSD-INT 2023 | Climate Adaptation Symposium 9
  • 9. NBS can have different functions and can provide various co-benefits Urban context: The provision of ecosystem services in cities depends on the quality and quantity of urban green infrastructure. Green infrastructure includes parks, gardens, urban allotments, urban forests, wetlands, lakes and ponds in cities, but also the natural areas – such as forests, mountains and wetlands – surrounding urban spaces. 10 DSD-INT 2023 | Climate Adaptation Symposium
  • 10. Urban NBS at Deltares • Quantification of the (physical) effects of Urban NBS in models − Hybrid blue-green grey smart solutions development • NBS as part of the larger system − Urban NBS, in combination with stormwater, coastal and river flooding − Effect of upscaling of urban NBS − NBS as infrastructure and as part of landscape • Monitoring the effectiveness of urban NBS − Water quantity and water quality − Monitoring using citizen science and long-term follow up • Supporting stakeholder processes − Tools and workshops 11 DSD-INT 2023 | Climate Adaptation Symposium
  • 11. Climate adaptation – Stakeholder engagement Minimizing: • Flooding • Heat stress • Drought Maximizing: • Livability / urban regeneration • Health potential • Sustainable economic development In existing cities climate adaptation involves many stakeholders: urban planners, drainage departments, road department, landscape designers, project developers, housing corporations, etc. Co-creation as part of stakeholder engagement 12 DSD-INT 2023 | Climate Adaptation Symposium
  • 12. Climate Resilient Cities Tool (https://crctool.org/en/) Assist stakeholders (urban planners, drainage departments, municipalities, landscape designers, project developers, housing corporations, etc.) in the process of decision making and enabling a collaborative design process towards more resilient cities. 13 DSD-INT 2023 | Climate Adaptation Symposium
  • 13. CRC Tool: Workshop in Athens, 15 November 2023 14 DSD-INT 2023 | Climate Adaptation Symposium
  • 14. CRC Tool: Workshop in Athens, 15 November 2023 15 DSD-INT 2023 | Climate Adaptation Symposium
  • 15. CRC Tool: User interface Applied measures Map window Key performance indicators DSD-INT 2023 | Climate Adaptation Symposium 16
  • 16. CRC Tool: 60 Adaptation measures DSD-INT 2023 | Climate Adaptation Symposium 17
  • 17. CRC Tool: In the adaptation process Analysis: - Hazard - Risk Method: Hydraulic model, heat stress model, … Exploration: - Possible adaptation options with stakeholders Method: CRCTool Design: - Detailed effect of adaptation measures Method: Hydraulic model, heat stress model, … DSD-INT 2023 | Climate Adaptation Symposium 19
  • 19. Urban Water Balance model 22 The hydrological effects of the adaptation measures are determined by means of a multi-reservoir water balance rainfall-runoff model based on 30-years timeseries of meteorological data • Hydrological boundary conditions of the water balance model are based on local conditions • Runoff is calculated for measures with varying storage depths and rainfall events with varying intensities with known return periods. Applied multi-reservoir water balance rainfall-runoff model. A more detailed description of this model in Van de Ven et al. [2016] DSD-INT 2023 | Climate Adaptation Symposium