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Climate Risk Analysis - Method and Data Sources

The climate risk analysis in Kliva helps property owners and investors understand how climate change may affect a property up to the year 2100. The analysis follows international standards and is based on data from Swedish public authorities.

This article goes through what lies behind the assessments — method, scenarios, risk levels and data sources. Would you rather know how to start an analysis, adjust risk levels, add proposed measures and export the report? You will find that in the introduction to Climate Risk Analysis.


How the analysis works

Method: the IPCC AR6 framework

The risk assessment is based on the IPCC AR6 framework (Intergovernmental Panel on Climate Change, Sixth Assessment Report):

Risk = Hazard × Exposure × Vulnerability

Component

Description

Data source

Hazard

Climate-related events that may cause damage: flooding, heatwave, storm, erosion

SMHI climate scenarios, IPCC AR6 projections

Exposure

The property's geographical exposure to climate risks

MSB cloudburst mapping, SMHI coastal flooding data, topographic analysis

Vulnerability

The property's sensitivity and capacity to adapt

Year of construction (as a proxy). Detailed drainage and basement data is not available.

Climate scenarios

The analysis uses the IPCC's Representative Concentration Pathways (RCP):

  • RCP 4.5 – Moderate scenario with substantial emission reductions

  • RCP 8.5 – High scenario without major climate action ("business as usual")

Risks are assessed for three time periods:

  • 2011–2040 – Near future

  • 2041–2070 – Medium term

  • 2071–2100 – Long term

Risk levels

Level

Description

No risk

Negligible impact

Low risk

Limited impact

Medium risk

Moderate impact

High risk

Significant impact

Categories

Climate risks are analysed within four main categories according to the EU taxonomy:

  • Temperature-related – Heatwave, cold wave, wildfire, permafrost

  • Wind-related – Storm, changing wind patterns

  • Water-related – Flooding, drought, sea level rise, heavy precipitation

  • Solid mass-related – Erosion, landslide, subsidence


Data sources

Primary data sources

  • MSB – the Swedish Civil Contingencies Agency (flood mapping, cloudburst maps)

  • SMHI – the Swedish Meteorological and Hydrological Institute (climate scenarios, coastal flooding)

  • Lantmäteriet – the Swedish national land survey (topographic data and elevation models)

  • SGU – the Geological Survey of Sweden (soil types, erosion risk)

  • Kliva/Risk & Environment – fire risk assessment for forest and open land

International references

  • IPCC AR6 – Working Group II, Chapter 13 (Europe)

  • The EU taxonomy – Appendix A climate risk requirements (EU 2021/2139)

Pre-calculated data

Some risks are based on pre-calculated data that already includes climate scenarios:

Coastal flooding

RCP 4.5 & 8.5 / Year 2100
Land uplift, tides, sea level rise

Flooding (cloudburst/pluvial)

RCP 8.5 / 100-year rainfall / Year 2100
Maximum and minimum flood depth from municipal cloudburst maps

Important, about limitations: In the absence of property-specific data (such as drainage, basements or adaptation measures), conservative assumptions are made. Property owners are recommended to carry out a detailed vulnerability analysis for properties with elevated risk.


Recommended measures

For each identified risk, concrete measures are proposed, adapted to the risk level. The recommendations focus on:

  • Property-specific measures that can be carried out by the property owner

  • Prioritisation based on cost versus risk reduction

  • Time horizon for implementation


Quality assurance

To ensure consistent and reproducible assessments:

  • The same property with the same input data always gives the same risk level

  • All assessments are based on verifiable data sources

  • No estimates or extrapolated statistics without a source reference

  • A conservative approach where there is uncertainty – rather underestimate than overestimate risk


Read More

Would you like to continue learning? Here you will find additional articles to guide you further:

Activate the analysis via Modules.

Introduction to the Pipeline system.

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