Hubbard Brook Experimental Forest: Snow Water Measurements, 1955 - present

Snow measurements have been collected approximately weekly during the winter season using transects adjacent to the established network of standard rain gages from 1956 to the present. Maximum snow depth, water content and snow cover duration data are recorded at points along a transect known as a “snow course”, which includes 10 points spaced at 2-m intervals within a designated 0.25 ha area. Data from one course are averaged for each collection date and snow water content is scaled up to a whole watershed value. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.

1956年至今，研究团队于冬季期间约每周通过毗邻已建成标准雨量计网络的样带开展积雪数据采集工作。沿被称为“积雪样线（snow course）”的样带布设的测点上，将记录最大雪深、积雪含水量与积雪持续时长数据；该样带在划定的0.25公顷区域内设置10个间距为2米的测点。每次采集日期对应的单条样线数据将取平均值，积雪含水量还会被折算为全流域尺度的数值。上述数据隶属于哈伯德布鲁克生态系统研究（Hubbard Brook Ecosystem Study, HBES）项目。该项目是依托哈伯德布鲁克实验林开展的协同研究工作，该实验林由美国农业部林务局北方研究站（USDA Forest Service, Northern Research Station）运营维护。