Calculate Simple Hysteresis Index (SHI)

Source: R/SHI.R

This function calculates Simple Hysteresis Index (SHI) following the description from Tsyplenkov et al. (2020)

SHI(dataframe, q, ssc, .warn = TRUE)

Arguments

dataframe

A data set object.

q

numeric, water discharge variable.

ssc

numeric, suspended sediment concentration variable.

.warn

logical, indicating if the warning message should be displayed.

Value

A numeric variable

References

Tsyplenkov A, Vanmaercke M, Golosov V, Chalov S. 2020. Suspended sediment budget and intra-event sediment dynamics of a small glaciated mountainous catchment in the Northern Caucasus. Journal of Soils and Sediments 20 (8): 3266–3281 DOI: 10.1007/s11368-020-02633-z

Author

Matthias Vanmaercke and Anatoly Tsyplenkov

Examples

library(dplyr)
data(djan)
output_table <- hydro_events(dataframe = djan,
                             q = discharge,
                             datetime = time,
                             window = 21)

output_table %>%
  filter(he == 2) %>%
  SHI(q = discharge, ssc = SS)
#> Warning: NAs dropped
#> [1] 0.2473604