| Elevation difference | Compare model to MW (% of total acreage) | Compare model to 1997 map (% of total acreage) |
| >−4 | 5.73 | 0 |
| from −4 to −2 | 5.21 | 1.72 |
| from −2 to −1 | 12.66 | 4.87 |
| from −1 to +1 | 64.99 | 62.24 |
| from +1 to +2 | 8.58 | 13.94 |
| From +2 to +4 | 5.28 | 10.69 |
| >+4 | 0 | 6.53 |