WBGB Digital Terrain Model
Matrix of points that determine the correlated elevation of the ground around the Aerodrome. Represents bare earth surface.
WMSA Area 2 Obstacles Data
Area 2 consists of Area 2a, Area 2b and 2c. Area 2a is a rectangular area around a runway that comprises the runway strip plus any clearway that exists. Area 2 b is an area extending from the ends of Area 2a with a length of 10 km. Area 2c is an area extending outside Area 2a and Area 2b at a distance of not more than 10km from the boundary of Area 2a.
