melting level


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melting level

[′melt·iŋ ‚lev·əl]
(meteorology)
The altitude at which ice crystals and snowflakes melt as they descend through the atmosphere.
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Thus, the decrease in frequency of patterns conducive to heavy snow at the stations is largely attributable to increased low-level temperatures and, thereby, an increase of melting level. This is especially true in the western flow pattern, in which the freezing level was near the elevation at most stations, and therefore snowfall frequency at study-area stations has drastically decreased.
One possible cause is an increase of melting level, which has produced precipitation in the form of rain rather than snow at the stations.
At a high melting level, polymer melt absorption ([[alpha].sub.M.A]) is constant and the sum of the traveling distance in polymer melt 2[H.sub.M] [approximately equal to] 2H.
This suggests that the melting level increases with the increase of feeding rates, and that polymer melts less uniformly at higher screw speeds.