Analysis of the summer thermal comfort indices in İstanbul
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View abstract on PubMed
Summary
This summary is machine-generated.This study evaluated thermal indices to map urban heat stress, finding air temperature strongly correlates with heat stress. Forested areas showed lower heat stress than urbanized districts, informing climate action strategies.
Area Of Science
- Environmental Science
- Urban Climatology
- Public Health
Background
- Thermal comfort is crucial for urban planning and health-focused climate strategies, especially in heatwave-vulnerable cities.
- Identifying appropriate thermal indices is essential for regional climate action and urban livability.
Purpose Of The Study
- To assess thermal indices as indicators of regional climate characteristics.
- To correlate thermal indices with meteorological parameters and spatial features for urban heat stress analysis.
Main Methods
- Collected atmospheric data (air temperature, wind speed, humidity, cloud cover) from 30 meteorological stations.
- Calculated heat stress levels using apparent temperature (AT), heat index (HI), wet bulb globe temperature (WBGT), physiological equivalent temperature (PET), universal thermal climate index (UTCI), and perceived temperature (PT).
- Generated thermal comfort maps using daily mean and maximum index values.
Main Results
- Air temperature (Ta) showed the strongest correlation (r=0.89±0.01) with all thermal indices, followed by mean radiant temperature (TMRT) (r=0.75±0.16).
- Distinct spatial variations in thermal stress were observed on ATmax, PETmax, and PTmax maps.
- Forested areas, like Çatalca, exhibited lower heat stress compared to highly urbanized districts.
Conclusions
- Thermal indices effectively indicate regional climate characteristics and spatial variations in urban heat stress.
- Air temperature is a key meteorological parameter for assessing thermal comfort and heat stress in urban environments.
- Findings support targeted urban planning and climate action strategies to mitigate heat stress in cities.
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