Water quality data - Selke catchment

This resource provides water quality data for Winter et al. (2020) from the Selke catchment (456 km², Germany), a sub-catchment of the Bode catchment, which is part of the network of TERrestrial ENvironmental Observatories (TERENO). Within the Selke catchment, we consider three nested sub-catchments that are delineated by the following gauging stations: i) Silberhütte (SH) , ii) Meisdorf (MEIS) and iii) Hausneindorf (HAUS). More specifically, this resource provides the following datasets:

1) Annual and seasonal averages of flow-normalized (FN) and non-FN nitrate concentrations (C in mg/L), loads (L in kg/d) and CQ-slopes (ß)between 1983 - 2016 for all three nested sub-catchments, calculated via Weighted Regression on Time, Discharge and Season (WRTDS, Hirsch et al. 2010).
2) Annual nitrogen (N) input data for all three sub-catchments (in kg/ ha * a) between 1950 - 2015. This N-input data is the sum of N-input from agricultural areas, N-input from non-agricultural areas (atm. deposition and biological fixation) and to a minor part from wastewater treatment plants (WWTPs).
3) A table of event characteristics from high-frequency measurements between 2013 - 2016 in Silberhütte and between 2010 - 2016 in Meinsdorf and Hausneindorf (15 min resolution, Qmax in mm and Cmax in mg/L, R2 is the coefficient of determination).