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Article

Social Sensing of Heatwaves

1
Computer Science, Innovation Centre, University of Exeter, North Park Road, Exeter EX4 4RN, UK
2
Alan Turing Institute, 96 Euston Road, London NW1 2DB, UK
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Giorgio Terracina
Sensors 2021, 21(11), 3717; https://doi.org/10.3390/s21113717
Received: 30 April 2021 / Revised: 19 May 2021 / Accepted: 21 May 2021 / Published: 26 May 2021
(This article belongs to the Special Issue Social Sensing of Natural Hazards and Extreme Weather)
Heatwaves cause thousands of deaths every year, yet the social impacts of heat are poorly measured. Temperature alone is not sufficient to measure impacts and “heatwaves” are defined differently in different cities/countries. This study used data from the microblogging platform Twitter to detect different scales of response and varying attitudes to heatwaves within the United Kingdom (UK), the United States of America (US) and Australia. At the country scale, the volume of heat-related Twitter activity increased exponentially as temperature increased. The initial social reaction differed between countries, with a larger response to heatwaves elicited from the UK than from Australia, despite the comparatively milder conditions in the UK. Language analysis reveals that the UK user population typically responds with concern for individual wellbeing and discomfort, whereas Australian and US users typically focus on the environmental consequences. At the city scale, differing responses are seen in London, Sydney and New York on governmentally defined heatwave days; sentiment changes predictably in London and New York over a 24-h period, while sentiment is more constant in Sydney. This study shows that social media data can provide robust observations of public response to heat, suggesting that social sensing of heatwaves might be useful for preparedness and mitigation. View Full-Text
Keywords: heatwave; heat; extreme weather; natural hazards; social sensing; social media heatwave; heat; extreme weather; natural hazards; social sensing; social media
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MDPI and ACS Style

Young, J.C.; Arthur, R.; Spruce, M.; Williams, H.T.P. Social Sensing of Heatwaves. Sensors 2021, 21, 3717. https://doi.org/10.3390/s21113717

AMA Style

Young JC, Arthur R, Spruce M, Williams HTP. Social Sensing of Heatwaves. Sensors. 2021; 21(11):3717. https://doi.org/10.3390/s21113717

Chicago/Turabian Style

Young, James C., Rudy Arthur, Michelle Spruce, and Hywel T.P. Williams 2021. "Social Sensing of Heatwaves" Sensors 21, no. 11: 3717. https://doi.org/10.3390/s21113717

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