Snow water equivalent data for Niwot Ridge and Green Lakes Valley, 1993 - 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.

本研究在尼沃特岭（Niwot Ridge）及绿湖谷（Green Lakes Valley）的多处点位开挖雪坑（snow pit）。沿积雪剖面的不同深度测定温度与雪密度，以表征全年积雪的温度特征与雪水当量（snow water equivalent，SWE）。雪密度采用1000毫升取雪器，以10厘米间隔完成测定。雪粒特征相关数据自1994-1995年雪季起开始采集。