| Cluster 1 (11 items) | Occurrences | Avg. citations | Cluster 2 (11 items) | Occurrences | Avg. citations |
| Air temperature | 4 | 37.3 | Canyon aspect ratio | 3 | 32.0 |
| Albedo | 4 | 24.5 | ENVI-met | 28 | 69.6 |
| Computational fluid dynamics | 3 | 4.0 | PET | 13 | 87.8 |
| Cool material | 3 | 46.0 | Rayman | 3 | 55.7 |
| Evaporative cooling | 3 | 25.0 | Simulation | 3 | 11.3 |
| Heat island | 4 | 87.5 | Street design | 5 | 95.4 |
| Mean radiant temperature | 6 | 23.8 | Street orientation | 3 | 9.3 |
| Shading | 6 | 19.3 | Urban canyon | 8 | 125.1 |
| Solar radiation | 4 | 38.3 | Urban geometry | 6 | 66.7 |
| Street canyon | 4 | 36.3 | Urban planning | 15 | 62.9 |
| Thermal comfort | 84 | 39.0 | Warm humid climate | 3 | 29.3 |
| Cluster 3 (8 items) | Occurrences | Avg. citations | Cluster 4 (7 items) | Occurrences | Avg. citations |
| Aspect ratio | 4 | 21.8 | Evapotranspiration | 3 | 121.7 |
| Sky view factor | 5 | 29.4 | Green infrastructure | 4 | 5.5 |
| Thermal perception | 4 | 26.1 | Microclimate simulations | 3 | 79.3 |
| Urban climate | 7 | 45.7 | Urban heat island | 24 | 36.6 |
| Urban environment | 4 | 2.8 | Urban park | 5 | 18.2 |
| Urban morphology | 9 | 15.7 | Urban vegetation | 4 | 55.8 |
| Vegetation | 9 | 61.6 | UTCI | 4 | 17.0 |
| Cluster 5 (5 items) | Occurrences | Avg. citations | Cluster 6 (4 items) | Occurrences | Avg. citations |
| Climate change | 6 | 17.8 | Open spaces | 3 | 23.0 |
| Microclimate | 51 | 44.4 | Outdoor spaces | 4 | 57.3 |
| Public space | 5 | 7.6 | Thermal sensation | 9 | 104.7 |
| Public space design | 3 | 18.0 | Urban design | 27 | 85.3 |
| Thermal adaptation | 3 | 20.3 | |||
| Cluster 7 (2 items) | Occurrences | Avg. citations | Cluster 8 (1 items) | Occurrences | Avg. citations |
| Cooling effect | 6 | 17.5 | Climate adaptation | 3 | 4.0 |
| Energy saving | 3 | 19.3 |