BCCZO -- Climate, Meteorology -- B1 Historical Meteorological Site (B1_Hist_Met) -- B1 Historical Site -- (1952-1970)

Precipitation data were collected from a ridgetop climate station East of Niwot Ridge (B1 at 2591 m) throughout the year using a chart recorder. Initially, instrumentation consisted of an 8-inch metal rain gauge with receiving rim about 3 feet off the ground and measurements were made on approximately weekly basis. More recently, instrumentation consisted of a Fegusson type weighing rain gage. Precipitation was caught in a bucket containing ethylene glycol (to melt snow) and light oil (to prevent evaporation). Asthe weight of the bucket increased, the pen moved up via a spring mechanism and recordedona rotating chart. Precipitation was recorded on a continuous basis.