ZONING
In: Luftfahrt [Weitere Bedeutungen] 
répartition en zones
lightning zoning
ZONES DEFINITIONS: (ARP 5414/ED91 ZONING )
1A:regions likely to experience initial lightning attachment and first return strokes and Wether long hang on of a lightning channel is unlikely
1B: regions likely to experience initial lightning attachment and first return strokes and where the lightning channel attachment point is unlikely to move
1C:transition zone with reduced amplitude of the first R.S
2A: Sweeping zone
2B: Sweeping zone
3: conduction Zone