High and low frequency water quality and quantity data in a point source influenced headwater stream

This dataset contains different water quality and -quantity data, collected in a small headwater catchment in the north of Hesse, Germany. Grab samples were collected manually on different sites within the stream and analysed for nutrients and stable water isotopes. On site 2, our main monitoring station, we installed probes for high frequency measurements of discharge, nitrate, and conductivity. Site 3 corresponds to the WWTP outlet. Meteorological data was collected via a meteorological station at the site of the WWTP. We also monitored the combined sewer overflow via a modified conductivity logger. CSO_on = 1 indicates, that the CSO is discharging. The data was processed and checked for quality, including sensor calibration and visual inspection, to remove obvious errors. Detailed procedures are described by Spill et al. (2023) (see Metadata)本数据集涵盖各类水质与水量数据，采集自德国黑森州北部的一处小型源头集水区（headwater catchment）。研究人员在溪流内的不同点位手动采集瞬时水样（grab sample），并对其中的营养盐与稳定水同位素开展分析。在作为核心监测站点的2号点位，我们安装了可高频监测流量、硝酸盐及电导率的传感器探头。3号点位对应污水处理厂（WWTP, wastewater treatment plant）的排出口。我们通过设于污水处理厂厂区内的气象站采集气象数据，同时借助改装后的电导率记录仪对合流制下水道溢流（combined sewer overflow, CSO）进行监测：当CSO_on取值为1时，代表该合流制下水道溢流正在排放。本数据集已完成数据处理与质量核查，流程涵盖传感器校准与人工目视检查，以剔除明显的错误数据。详细的处理步骤详见Spill等人（2023）的研究成果（参见元数据（Metadata））。