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GCRI · Cities and Built Environment

Reviewed models and scenarios

Model descriptions for Cities and Built Environment are published here once reviewed, with their assumptions, evidence and validation. They describe models; they are not live simulations.

01Workspace

The workspace for reviewed models and scenarios.

Build workspace

Cities · Reviewed models · Run R-4446 · Example interface, not a record

Run in progressGCRI · Cities and Built Environment

Runs

same inputs, versioned

R-9191Structuralv5.50.87Running
R-3620Urban and transportv8.80.55Passed
R-3789Geospatial informationv3.50.85Failed test
R-8487Spatial statisticsv6.70.62Failed test

Model card

Method
Structural and earthquake engineering
Inputs
Municipal asset register, Flood hazard layer
Validation
held-out period, skill reported
Label
MODELLED

Run log

  1. 00:00:33InfoIngest municipal asset register
  2. 00:03:12InfoSchema and licence checks passed
  3. 00:05:40WarnGap filled by interpolation, flagged
  4. 00:14:03DoneCalibration complete
  5. 00:24:55GateIndependent test queued
Build workspace.Illustrative interface; not live data.

Cities and Built Environment · Build workspace. Build workspace: example names and illustrative values, not a record.

02What is shown

Released, referenced and rights-cleared.

  • Time and space reference for every view.
  • Sources and licence.
  • Uncertainty and known limits.
  • Version and date of release.
03Model classes

The kinds of model urban work relies on.

Model classOpen examplesQuestion it answersValidation
Urban climate modelsOpen urban canopy modelsStreet-scale heatStation and sensor data
Urban flood models2D hydraulic models with drainagePluvial floodingObserved flood events
Land-use change modelsCellular automata modelsUrban expansionHindcast against observed growth
Seismic loss modelsHazus methodologyBuilding damagePost-event surveys
04Process

How the process runs.

Process explorer · Process

Reviewed models and scenarios: Hazard, exposure, vulnerability

10 steps4 stages

Process

Reviewed models and scenarios: Hazard, exposure, vulnerability

In IPCC AR6 Working Group II, climate risk results from interactions between hazards and a system’s exposure and vulnerability, and responses can add risk.

  1. 01 Drivers

    1. 01HazardDataset · Housing authorityThe potential occurrence of a natural or human-induced physical event or trend that may harm people, property, services or ecosystems.
    2. 02ExposureDataset · Housing authorityThe presence of people, livelihoods, species, ecosystems, infrastructure or assets in places and settings that could be adversely affected.
    3. 03SensitivityDataset · Housing authorityThe degree to which a system or species is affected, either adversely or beneficially, by climate variability or change.
    4. 04Capacity to cope and adaptDataset · Housing authorityThe ability of systems, institutions, humans and other organisms to adjust to damage, take opportunities or respond to consequences.
  2. 02 Assessment

    1. 05Risk from responsesComponent · Housing authorityRisks from climate responses arise when responses miss their objectives, or from trade-offs or negative side effects.
    2. 06VulnerabilityComponent · Housing authorityThe propensity or predisposition to be adversely affected. It includes sensitivity to harm and lack of capacity to cope and adapt.
    3. 07RiskModel · Cities and Built EnvironmentRisk results from dynamic interactions between hazards and the system’s exposure and vulnerability. Each may be uncertain and change.
  3. 03 Response

    1. 08Risk management and responseStep · Housing authorityRisk management is plans, actions, strategies or policies that reduce the likelihood or size of adverse consequences.
    2. 09Residual riskRecord · Housing authorityThe climate impact risk that remains after adaptation and mitigation efforts. Adaptation can redistribute risk between areas and groups.
  4. 04 Decision

    1. 10Decision by the responsible partyDecision · Housing authorityThe framing names no single decision maker. Decisions on responses rest with the responsible party under its own rules.

Outline of an external standard or method, from its public sources. It describes what the framework says, not a record of any run. It does not show that Nexus or any partner performs, certifies or approves a step. A gate is a step of the method, never a Nexus approval.

05Status

Releases appear as they are reviewed.

Analysis runs in Foundry; reviewed releases are listed here.

06Sources

Where this page’s references lead.

The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.

07Questions

Questions and answers.

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Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

GCRICities and Built EnvironmentGlobal Sector Risk and ResilienceEvidence Brief
Cities and Built Environment

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