An R code for event analysis of concentration-discharge relationships and hysteresis

This R code uses joint time series of concentration and discharge to (1) separate discharge events and store them in a data frame (events_h) and (2) analyse C-Q relationships including hysteresis, derive metrics describing these and store them in a data frame (eve.des).
The R code is provided as TXT and as R-file.
The code is written by Qing Zhan, Rémi Dupas, Camille Minaudo and Andreas Musolff.

This code is used and further descriped in this paper:
A. Musolff, Q. Zhan, R. Dupas, C. Minaudo, J. H. Fleckenstein, M. Rode, J. Dehaspe & K. Rinke (2021)
Spatial and Temporal Variability in Concentration-Discharge Relationships at the Event Scale.
Water Resourcers Research Volume 57, Issue 10
https://doi.org/10.1029/2020WR029442

本R代码利用浓度与径流量的联合时间序列，完成两项任务：(1) 划分径流事件并将其存储于数据框`events_h`中；(2) 分析包含滞后效应的浓度-径流量（C-Q）关系，推导描述该关系的相关指标，并将结果存储于数据框`eve.des`中。

本R代码以TXT文本文件与R脚本文件两种格式提供。

本代码由Qing Zhan、Rémi Dupas、Camille Minaudo及Andreas Musolff编写。

本代码已被应用，并在以下论文中得到进一步阐述：
A. Musolff、Q. Zhan、R. Dupas、C. Minaudo、J. H. Fleckenstein、M. Rode、J. Dehaspe与K. Rinke（2021）《事件尺度下浓度-径流量关系的时空变异性》，发表于《水资源研究（Water Resources Research）》第57卷第10期，DOI链接：https://doi.org/10.1029/2020WR029442