Fig. 4: Two-sided Spearman’s rank correlation between city’s mortality risk averaged across different time periods and the city’s characteristics. | Nature Communications

Fig. 4: Two-sided Spearman’s rank correlation between city’s mortality risk averaged across different time periods and the city’s characteristics.

From: Economic valuation of temperature-related mortality attributed to urban heat islands in European cities

Fig. 4

Metrics examined include the relative risk (RR) at the extreme ends of the city’s temperature range, the number of days in a year warmer than the minimum mortality temperature for the 65–74 age group, the average magnitude of the urban heat island (UHI), the ratio of the population aged 85+ compared to those aged 20–44, the annual average temperature (Tavg), as well as the longitude and latitude. The size of the square corresponds to the magnitude of the correlation. Only correlations with statistical significance above 99% (p value <0.01) are shown. Negative correlations indicate a greater protective effect or lower adverse effect with a higher value of the metrics.

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