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，科研人员便通过设于各流域内部及周边的雨量计，在哈伯布鲁克实验林（Hubbard Brook Experimental Forest）开展降水观测。本次数据集所用的雨量计共分为三类：标准型雨量计、机械式称重记录雨量计以及电子式称重记录雨量计。1956年至2014年间，设于监测流域内/周边及总部大楼的24个标准雨量计按周开展降水观测；其中7个站点配备了称重记录雨量计，可生成连续的条带图观测记录。彼时周累计降水量会通过邻近记录雨量计的日降水量数据进行比例折算。2011年起，研究团队启用电子称重雨量计以采集15分钟分辨率的降水数据；2015年所有站点全面升级为可同时采集15分钟及日尺度降水数据的电子雨量计后，降水观测站点数量缩减至10个。上述数据集采集自新罕布什尔州桑顿市的哈伯布鲁克实验林，该实验林由美国农业部林务局北部研究站（USDA Forest Service, Northern Research Station）运营维护。