Xylella Climate Suitability Maps for Australian Biosecurity

Maps of modelled climate suitability for the Xylella biosecurity risk are provided for each month, phenophase, and climate variable combination. The project used eight global climate models (GCMs) and historical observations to produce these GeoTIFF format maps. This data originates from the Department of Primary Industries and Regional Development's Climate Vulnerability Assessment framework.

Use Cases

• Analyze climate suitability maps for each phenophase to identify seasonal windows of highest Xylella establishment risk.
• Compare ensemble median suitability derived from eight GCMs against historical observation maps to assess climate change impacts.
• Model Xylella spread by integrating monthly climate suitability GeoTIFFs into spatial risk assessments for Australian primary industries.

Strengths

• Data includes outputs from eight distinct global climate models (GCMs) for comparative analysis.
• Provides climate suitability maps for specific phenophases and monthly intervals, enabling detailed temporal analysis.
• Follows a documented multicriteria analysis (MCA) framework developed for consistent vulnerability assessment across six primary industry nodes.

Limitations

• Dataset size, row count, and specific column structure are unknown, limiting immediate understanding of data volume and granularity.
• Focus is exclusively on the Xylella model within the Biosecurity Risks node, not covering other assessed commodities or risks.
• Relies on model outputs with inherent assumptions and exclusions detailed in a separate methodology report.

Provenance

Source

Department of Primary Industries and Regional Development (DPIRD)

Collection Method

Modelled using a multicriteria analysis (MCA) framework on climate data from eight GCMs and historical observations.

Freshness

Last updated March 2026.

Geography

Australia, focused on primary industry sectors.