Table 6 Horizontal mean and maximum mean error assigned to the orthophotographs.
From: Digital elevation model and orthophotographs of Greenland based on aerial photographs from 1978–1987
Horizontal error | 1978 | 1981 | 1985 | 1987 |
|---|---|---|---|---|
Mean error (m) | 3.9 | 7.7 | 4.1 | 6.7 |
Maximum mean error (m) | 6.4 | 13.2 | 6.8 | 11.4 |
