Total area under consideration and resolution of the grids used
| grid | from | to | from | to |
distance |
in N-S |
| total area (meteor. fields) |
50°W | 50°E | 25°N | 80°N | 1.0° | 1.0° |
| coarse grid | 10°W | 59°E | 35°N | 69°N | 1.0° | 1.0° |
| fine grid | 5°W | 24.5°E | 43°N | 59.7°N | 0.35° | 0.33° |
Vertically, the area considered for the dispersion calculation is bounded by
the level 28 (numbering beginnig at the surface), thus it includes the whole
troposphere and the lower part of the stratosphere.