A layer of patches composed of laminae or globular masses arranged in groups, lines
or waves and having a soft, grey appearance; very often the rolls are so close together
that their edges join and give the undersurface a wavy character; the process of formation
(cumulogenesis) involves the spreading out of the tops of cumulus clouds, the latter
; usually warmer than
vertical velocities usually
PAC, 1990, 62, 2167
(Glossary of atmospheric chemistry terms (Recommendations 1990))
on page 2180
An error in this entry in the printed version of the Compendium (omission of a minus
sign) has been corrected.
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook