Snow grain data for Niwot Ridge and Green Lakes Valley, 1995 - ongoing.

Snow pits were excavated at various locations on Niwot Ridge and within the Green Lakes Valley. Temperature and snow density were measured at various depths throughout the snow cover profiles to characterize the temperature and snow water equivalent (SWE) of the snowpack throughout the year. Snow density was measured at 10-cm intervals using a 1000-ml cutter. Data on snow grain qualities were collected beginning in the 1994-95 snow season.本数据集基于在尼沃特岭（Niwot Ridge）与绿湖谷（Green Lakes Valley）的多处点位开展的雪坑挖掘工作。研究人员在积雪剖面的各深度处测量温度与积雪密度，以实现对全年雪层温度及雪水当量（SWE）的特征刻画。积雪密度采用1000毫升采样器，以10厘米间隔完成测量。雪粒品质相关数据自1994-1995积雪季起开始采集。