program b: water sensitive urbanism nigel tapper (monash university) darryl low choy (griffith...
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Program B: Water Sensitive Urbanism
Nigel TAPPER (Monash University)Darryl LOW CHOY (Griffith University)
“This program focuses on the influence of urban and peri-urban configurations on resource flows across a range of landscape scales. It is applying green infrastructure and climate responsive design principles to water security, flood protection and the ecological health of terrestrial and aquatic landscapes from neighbourhood to whole-of-catchment level. The program aims to establish integrative socio-technical urban and regional planning and design processes that will deliver practical tools to improve resilience of Australian urban environments and their regional settings”.
Key issues: • Ecological values/Ecosystem services• Planning /Design• Socio-ecological landscapes
Combining state-of-the-art science of climate change modeling, surface and sub-surface hydrology, streamwater ecology and chemistry, and urban climatology with the best new thinking on urban and regional planning, design and practice
Program B: Water Sensitive Urbanism
Society Water Sensitive Urbanism
Future Technologies
AdoptionPathways
B2 Planning, Design and Management to Protect
and Restore Receiving Waters
B3 Water Sensitive Urban Design and Urban Micro-climate
B1 Catchment-scale Landscape Planning for Water Sensitive Cities in an age of Climate Change
B4 Building Socio-technical Flood
Resilience in Cities and Towns
B5 Statutory Planning for Water Sensitive Urban Design
B1 – Catchment-scale Landscape Planning for Water Sensitive Cities
with Climate Change
B1.1 Urban Rainfall in a Changing Climate
(Cities as Water Supply Catchments)
Bhupendra Raut1, Lorenzo de la Fuente1,
Michael Reeder1, Christian Jakob1 and Alan Seed2
1School of Mathematical Sciences, Monash University2Centre for Australian Weather and Climate Research, BOM
Project B1.1: Urban rainfall in a changing climate
This project is:• Providing rainfall projections
at appropriate space/time scales to support planning and design decisions
• Providing quantitative estimates of the uncertainties in rainfall projections.
Key outputs: • Rainfall regimes determined
for cities at 5km2 scales for use by other Programs/projects.
Regional model uncertainty Unpredictable scales
Climate scenario uncertaintyGlobal model uncertainty
• Refine and complete regime analysis for the dynamical model simulations
• Refine the statistical model
• Test the entire downscaling chain (GCM, Dynamical Model, Statistical Model) for current climate
• Test leaving the regional model out of the chain
• Extend the model to future climates and CMIP5
Immediate Plans
• The project is developing urban-scale projections of the future rainfall over the selected Australian cities with estimates of the uncertainty in these projections using a combination of dynamical downscaling and regime-dependent stochastic downscaling
• The approach quantifies how well the different observed synoptic patterns are simulated in the regional climate model, and whether the model correctly predicts the fraction of rainfall attributable to each class of weather pattern
• The statistical properties of each of the rainfall regimes can be determined from radar and rain gauges, and used to construct a multifractal cascade model of the rainfall distribution and its evolution
Summary
B1.2 Catchment-scale landscape planning for water sensitive city-regions in an age of
climate change
Silvia Serrao-Neumann1, Darryl Low Choy1
and Steve Kenway2
(still recruiting)
1Urban Research Program, School of Environment, Griffith University2Advanced Water Management Centre, School of Chemical Engineering, University of Queensland
This project will: • Derive a first order urban metabolism evaluation
framework for the city region across urban, peri-urban and rural landscapes.
• Encapsulate this framework within a whole-of-landscape planning and management city-region model that links cities ecologically and hydrologically to their region whilst accommodating the assessment of urban growth adapted to climate change.
• Ground this inquiry in statutory and non-statutory regional (catchment) scale planning processes.
Project B1.2: Catchment-scale Landscape Planning for Water Sensitive City-regions in an age of Climate Change
Key outputs: • Scenarios of plausible futures for rapidly growing
metropolitan regions that adopt a whole of landscape regional scale outlook that links cities ecologically and hydrologically to their regions.
Urban Centre
Dominant Urban Forces
Strong Non-Urban Sector
The Metropolitan Region
Rural Landscapes Rural Landscapes
The Peri-urban Landscapes
Landscape Scale
(Human use and occupation)
Biophysical environment
Socio-ecological systems
Socio-economic environment
“…an area, as perceived by people, whose character is the result of the actions and interactions of natural and/or human factors” (Selman, 2006: 6)
Zone of Resilience Interests
?
(Kenway, 2012)
Peri-urban Demands
Urban Demands
Environmental Demands
Rural Demands
Cultural Demands
Outdoor Recreation Values
Cultural Heritage Values
Scenic Amenity Values
Rural Production Values
Biodiversity Values
Indigenous Values
Ecosystem Services
Habitation Values
Regional Landscape ValuesDemands on the Regional Landscape
Water: a lin
king element in th
e
Landscape fo
r “joined-up”
planning
Future Population in a changing Climate
“n” y
rsTowards a Conceptual Model for a Resilient
“Water Sensitive” Metropolitan Region
Modified Mass Balance & Urban
Metabolism Model
Precipitation
PresentPopulation
Quantity
Quality Floo
ding
Ope
n Sp
ace
syst
em
evapotranspiration
Total Water in the metropolitan regional
systemGroundwaterRecycled
waterStored waterSurface water
Ecos
yste
m S
ervi
ces
Carbon Energy
Water
Adapted Mass Balance & Urban
Region Metabolism Model
?
Roles of Water in the Metropolitan Region
Water functions as a:
• Element in the landscape contributing to landcsape values (aesthetical, recreational, tourism, cultural, ecological, hydrological and natural resources)
• Process and agent of change
• Commodity and product
• Conductor and transporter of goods, materials and energy (and other flows)
What is the managerial connection between these roles?
Statutory Vs Non StatutoryStatutory
Planning RegimeNon Statutory
Planning Regime)
Regional & Local Planning Mandates
Voluntary Requirements (GI)
Statutory Requirements (GI)
Avenues to Incorporate Science into Planning
Mandatory Optional
Alternative Metabolic Futures
(urban form, density, GI investment, climate)
Thank You