CH C0 CI CIRRUS
CIRRUS USUALLY OCCURS AT ALTITUDES BETWEEN
3 - 8 KM (10000 - 25000 FEET) IN POLAR REGIONS
5 - 13 KM (16500 - 45000 FEET) IN TEMPERATE REGIONS
6 - 18 KM (20000 - 60000 FEET) IN TROPICAL REGIONS
IN TEMPERATE ZONE, THE CIRRUS OF POLAR AIR MASSES OCCUPIES LOWER LEVELS THAN THE CIRRUS OF TROPICAL AIR MASSES
| CIRRUS / Ci |
| CL = 4 • CM = 0 • CH = 2 • CE = 1? |
| - |
| Close to Wien - Austria, LOWW / FL350 / S |
| 2004.08.16 / 17:07:19 |
| 1/800, F4.5, ISO 50, 38 mm, IMG18 |
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