snowpack
noun [ C or U ] environment specialized uk/ˈsnəʊ.pæk/ us/ˈsnoʊ.pæk/
积雪，积雪层
a mass of snow that has been pressed down so that it forms a hard layer
Measuring changes in the size of glaciers and snowpacks provides one way of measuring the effects of climate change. 衡量冰川和积雪层面积的变化是衡量气候变化影响的一种方法。