SSHCZO -- Streamflow / Discharge, Stream Water Temperatures, Electrical Conductivity -- Shale Hills -- (2015-2018)

A 2.5 foot fiberglass H-flume with 7’ 6” 3D approach section, 10” diameter stilling well, and dual scale staff gauge is located at the outlet of the stream Shale Hills Susquehanna Critical Zone Observatory Stream (40.6648488, -77.9072458, elevation 259.08 m) is used to monitor stream discharge accurately during high and low flows. Water depths are measured using a Decagon CTD-10 sensor recording in one-minute intervals, integrated to 10 minute values and converted to discharge using a rating curve developed by Open Channel Flow for the specific flume dimensions. An offset of 54 mm has been entered in the Campbell Science CR1000 data-logger program to account for the difference between the pressure sensor spacing and distance from bottom of stilling well to flume. Data are measured using a Decagon CTD-10 pressure transducer consisting of depth, water temperature and electrical conductance. The pressure sensor is located 15mm from the head (bottom) of sensor. The 15mm offset is accounted for in the CRBasic program providing actual values of water depth in the data table. Discharge values are derived from formulas in the Openchannelflow 2.5-ft H-Flume discharge table, and will report values of -9999 when depth is less than 6.1 mm where excessive error due to fluid flow properties and boundary conditions apply.
Date Range Comments: Data are quasi-live 10-minute interval depth and derived discharge values. End date is not fixed.

位于页岩山萨苏昆纳关键区观测站溪流（40.6648488, -77.9072458，海拔259.08米）出口处，设置了一个2.5英尺长的玻璃纤维H型水槽，配备7英尺6英寸的3D进水段，10英寸直径的消能井和双尺度标尺。该装置用于精确监测溪流在高流量和低流量期间的排放量。水深通过Decagon CTD-10传感器进行测量，记录间隔为每分钟一次，并将数据积分至10分钟值，随后利用Open Channel Flow针对特定水槽尺寸开发的评级曲线将其转换为排放量。在Campbell Science CR1000数据记录器程序中已输入54毫米的偏移量，以补偿压力传感器间距与消能井底部至水槽距离之间的差异。数据测量采用Decagon CTD-10压力传感器，该传感器由深度、水温及电导率组成。压力传感器位于传感器头部（底部）下方15毫米处。15毫米的偏移量已在CRBasic程序中得到考虑，确保数据表中记录的实际水深值准确无误。排放量值根据Openchannelflow 2.5英尺H型水槽排放表中的公式计算得出，当水深小于6.1毫米时，由于流体流动特性和边界条件导致的误差过大，将报告-9999值。日期范围备注：数据为近似实时10分钟间隔水深及由此派生的排放量值。结束日期不固定。