Frequência eventos extremos
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
× (1 + 5%/°C)
About this calculator
This calculator estimates the increase in frequency of extreme weather events (such as storms, droughts, or heatwaves) in relation to global warming. The formula is based on studies showing a 5% rise in such events' frequency per 1°C increase in global average temperature. It uses the equation: (current frequency) × (1 + 5%/°C) × degrees of warming. It helps assess future climate risks for urban planning, agriculture, and mitigation policies.
To use the tool, input the current frequency of an extreme weather event and the projected warming in Celsius. The calculator multiplies the frequency by 1.05 raised to the number of degrees, generating a new frequency estimate. Example: 10 events/year × 1.152 (for 3°C warming) = 15.2 events/year. Results help predict impacts on vulnerable sectors like infrastructure and public health.
Note that this is a simplified model and does not account for regional or local climatic variabilities. Results should be interpreted cautiously in critical analyses. Complement data with region-specific studies and advanced climate models for accuracy.
The calculator draws from UN and IPCC reports but does not replace advanced climate simulations. Use it for educational discussions or initial planning, but consult experts for technical or policy decisions.
Frequently asked questions
What is the basis for the 5% increase per degree Celsius?
The 5% value comes from global studies linking warming to extreme events frequency, as detailed in UN and IPCC reports.
Can this tool be used for different types of weather events?
Yes, as long as the specific event's frequency-warming relationship aligns with this simplified model.
Is the result an exact prediction?
No, it's an estimate based on average projections. Local factors like geography and wind patterns may alter actual outcomes.
How to convert results to different time scales?
The tool provides annual frequencies. For other scales, adjust proportionally (e.g., divide by 12 for monthly).