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Term: Glaciation Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary

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Definition: Transformation of cloud droplets into ice crystals, e.g. as occurring in the upper portion of a cumulonimbus.  WMOMeteoterm 

The transformation of cloud particles from water drops to ice crystals. Thus, a cumulonimbus cloud is said to have a 'glaciated' upper portion.  NOAA-NWS 

1.Alteration of any part of the earth's surface by passage of a glacier, chiefly by glacial erosion or deposition; distinguish from glacierization. 2.As used in many texts, particularly with respect to the ice ages, same as glacierization, for example, "Pleistocene glaciation." 3.The transformation of cloud particles from supercooled water drops to ice crystals. Thus, a cumulonimbus cloud is said to have a glaciated upper portion.  AMSglossary 

 GCW 
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