Mammatus1.jpg and Mammatus2.jpg were taken after a strong lightning
in the Front Range Mountains next to Boulder, Colorado.
Mammatus3.jpg and Mammatus4.jpg show the cloud minimum level of
a thundercloud. It was taken directly after an intense, short shower
associated with significant air cooling which is the precondition
for the formation of the mammatus dents.
Mammatus5.jpg: The clouds belong to the precursors of a Tornado
cell which passed the location of the photographer shortly after
it.
CuCon1.jpg to CuCon5.jpg presents views of a Cumulus congestus cloud
around 9 p.m. "Mammatus" structures were built underneath.
The last two images display the border of the cloud where the cloud
slowly dissolved.
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In the artwork "Cornfield with Cypresses" by Vincent
Van Gogh mammatus dents can be also clearly noticed, especially
at the right picture side. Apparently the artist had a scene in
mind which was similar to the one shown in Mammatus1.jpg. This canvas
was created in Saint-Remy in June 1889 and is exhibited in the National
Gallery of London today.
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Mammatus1+2.jpg: S. Borrmann, Rocky Mountains next to Boulder,
Colorado, USA, Summer 1991
Mammatus3+4.jpg: S. Borrmann, Johannes Gutenberg University, Mainz,
Germany, July 2001
Mammatus5.jpg: M. Ebert (University of Darmstadt), District University
City of St Louis, MO, USA, 6 May 2003, in the afternoon
CuCon1.jpg to CuCon5.jpg: S. Borrmann, Ingelheim, Germany, July
2002
Vincent Van Gogh, "Cornfield with Cypresses", Oil, 72.5
cm x 91.5 cm, 1889, National Gallery von London
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