Glacier ice accumulation
Glacier ice accumulation occurs through accumulation of snow and other frozen precipitation , as well as through other means including rime ice ( freezing of water vapor on the glacier surface ) , avalanching from hanging glaciers on cliffs and mountainsides above , and re-freezing of glacier meltwater as superimposed ice . 
<triplet> snow <subj> precipitation <obj> subclass of <triplet> avalanching <subj> snow <obj> facet of