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Being below a large cloud complex, the subspecies of "pannus" can be easily noticed. However the overview that is necessary for its determination is often missing. StPannus1.jpg: View of a Cumulonimbus calvus systems from below. The observer could not recognize any icing from his point of view. The dark-blue clouds in front of the white ones are the so-called "pannus" subspecies.
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StPannus2.jpg, StPannus3.jpg: The cloud system covered the whole
sky, so that the exact determination of the Cumulonimbus type was
not possible. Strong precipitation with cold raindrops and occasional
lightning occurred right before the images were taken. Therefore
it can be assumed that this is a Cumulonimbus incus cloud. |
StPannus1.jpg: S. Borrmann, Rocky Mountains near Boulder, Colorado,
view in north-easterly direction, summer 1991 StPannus2.jpg, StPannus3.jpg : S. Borrmann, Lagua do Banana near
Fortaleza, Ceara, Brazil, 29 February 2004, 2:55 p.m. |