Hubbard Brook Experimental Forest: Daily Precipitation Rain Gage Measurements, 1956 - present

Precipitation has been measured at the Hubbard Brook Experimental Forest using rain gauges located in or around each watershed since 1956. Three types of rain gauges have been used: standard, mechanical weight recording, and electronic weight recording. Between 1956 and 2014, precipitation was measured weekly at standard gages located at 24 stations in or near gauged watersheds and at the headquarters building. Weight-recording gauges were located at 7 of the 24 stations and capture a continuous strip-chart record. Weekly totals were prorated using daily totals from the nearest recording gauges. Beginning in 2011, electronic weighing rain gauges were implemented to measure 15-minute precipitation. The number of precipitation stations was reduced to 10, when each station was fully converted to an electronic gauge for measuring 15-minute and daily precipitation beginning in 2015. These data were gathered at the Hubbard Brook Experimental Forest in Thornton, NH, which is operated and maintained by the USDA Forest Service, Northern Research Station.

自1956年起，科研人员便通过布设于各流域内部及周边的雨量计，对哈伯德布鲁克实验林（Hubbard Brook Experimental Forest）的降水情况开展监测。本次数据集共使用三类雨量计：标准型雨量计、机械式称重记录雨量计及电子称重记录雨量计。
1956年至2014年间，布设在24个监测流域内外及总部办公楼的标准雨量计均按周开展降水观测；其中7个站点布设了称重记录雨量计，可获取连续带状记录。每周总降水量通过邻近称重雨量计的日降水量数据按比例折算得到。
2011年起，项目组启用电子称重雨量计以采集15分钟分辨率的降水数据。2015年起，所有站点全面换装为可同步采集15分钟级及日降水量的电子雨量计，降水监测站点总数缩减至10个。
上述数据采集自新罕布什尔州桑顿市的哈伯德布鲁克实验林，该实验林由美国农业部（USDA）林务局北部研究站运营维护。