Table 2.
Comparison of heat risks from raster-based and vector-based model. Each type of heat risk was evaluated with the mean value of exposure and vulnerability variables.
| Risk Category | Mean LST | Mean Seniors | Mean Infants | People in Old Houses | People in High Heat Risk Homes | Low Income Population | Low Education Population | People Living Alone | Unemployment Rate | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Raster-based | 292.4 | 7.2 | 0.8 | 3.1 | 1.3 | 1.3 | 11.4 | 2.1 | 2.1 |
| Vector-based | 299.6 | 6.1 | 0.6 | 1.5 | 1.2 | 0.8 | 7.6 | 1.5 | 2.3 | |
| 2 | Raster-based | 297.9 | 8.4 | 0.9 | 2.6 | 3.3 | 1.4 | 10.0 | 2.6 | 2.4 |
| Vector-based | 305.1 | 57.1 | 6.1 | 22.0 | 18.3 | 10.2 | 77.7 | 17.5 | 3.9 | |
| 3 | Raster-based | 301.8 | 20.6 | 2.0 | 7.6 | 4.8 | 3.0 | 27.9 | 5.3 | 3.1 |
| Vector-based | 308.1 | 227.8 | 25.9 | 85.1 | 63.5 | 33.5 | 323.1 | 62.8 | 4.5 | |
| 4 | Raster-based | 307.0 | 80.3 | 8.2 | 31.2 | 14.8 | 11.3 | 111.2 | 19.3 | 3.9 |
| Vector-based | 309.7 | 496.4 | 61.0 | 215.8 | 136.5 | 86.6 | 745.4 | 140.8 | 6.6 | |
| 5 | Raster-based | 311.3 | 412.4 | 50.6 | 180.2 | 95.2 | 69.6 | 639.0 | 112.0 | 5.4 |
| Vector-based | 312.0 | 599.5 | 79.1 | 307.6 | 235.0 | 122.8 | 967.0 | 210.3 | 5.5 | |
| 6 | Raster-based | 313.1 | 1002.3 | 130.1 | 487.3 | 630.7 | 263.5 | 1637.5 | 434.3 | 7.4 |
| Vector-based | 312.7 | 969.0 | 128.0 | 538.5 | 773.1 | 292.2 | 1556.2 | 522.2 | 6.0 | |
| 7 | Raster-based | 313.3 | 2343.0 | 283.5 | 1505.0 | 3601.6 | 1151.8 | 3578.1 | 2019.4 | 7.9 |
| Vector-based | 313.6 | 1483.9 | 168.6 | 762.1 | 1419.7 | 510.5 | 2450.7 | 860.0 | 7.2 | |
| 8 | Raster-based | 312.6 | 4871.9 | 654.5 | 4788.2 | 11951.1 | 4233.6 | 7317.8 | 6809.0 | 9.0 |
| Vector-based | 314.2 | 2126.5 | 242.9 | 1347.5 | 2979.9 | 1155.6 | 3466.5 | 1705.6 | 8.2 | |
| 9 | Raster-based | 313.9 | 6073.5 | 298.9 | 9284.7 | 14965.3 | 11314.6 | 12507.8 | 12110.7 | 14.8 |
| Vector-based | 314.6 | 4360.7 | 634.0 | 5211.2 | 9453.2 | 4475.1 | 7183.6 | 5847.5 | 8.5 |