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Social Sensing of Heatwaves
James C Young1, Rudy Arthur1, Michelle Spruce1
1Computer Science, Innovation Centre, University of Exeter, North Park Road, Exeter EX4 4RN, UK.
Sensors (Basel, Switzerland)
|June 2, 2021
Summary
Social media reveals public reactions to heatwaves. Twitter data shows varying attitudes and responses to rising temperatures across the UK, US, and Australia, aiding heatwave preparedness.
Area of Science:
- Environmental Science
- Public Health
- Social Science
Background:
- Heatwaves cause significant mortality, but their social impacts are inadequately measured.
- Current definitions of heatwaves vary globally, complicating impact assessment.
- Temperature alone is insufficient for understanding the societal effects of extreme heat.
Purpose of the Study:
- To utilize Twitter data for assessing public responses to heatwaves in the UK, US, and Australia.
- To analyze country- and city-scale variations in social reactions to heat.
- To explore differences in public sentiment and focus regarding heatwaves.
Main Methods:
- Analysis of Twitter data from the UK, US, and Australia during heatwave events.
- Quantitative assessment of heat-related Twitter activity volume correlated with temperature.
- Qualitative language analysis to determine user sentiment and thematic focus.
Main Results:
- Heat-related Twitter activity increased exponentially with temperature across countries.
- The UK showed a stronger initial social media response to milder heatwaves compared to Australia.
- Language analysis indicated UK users focused on personal discomfort, while US and Australian users focused on environmental impacts.
- City-level analysis revealed distinct sentiment patterns in London, Sydney, and New York.
Conclusions:
- Social media data offers a robust method for observing public responses to heatwaves.
- Social sensing of heatwaves can potentially enhance preparedness and mitigation strategies.
- Understanding diverse public reactions is crucial for effective heatwave management.
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