tq_signatures: Compute signatures based on the air temperature (T) and...

In IvanHeriver/hsa-R-package: Hydrological Signature Analysis toolbox

Description

This function computes signatures based on the air temperature (T) and streamflow (Q) regime cycle: the slopes of 4 periods (T+Q+, T+Q-, T-Q-1, T-Q-2 periods) of the T-Q cycle and timing of the Q maximum.

Usage

tq_signatures(
  hdays,
  T,
  Q,
  n = 30,
  remove_last = TRUE,
  periods = c(183, 336, 62)
)

Arguments

hdays	numeric vector. vector of 'julian' date of length m which should be computed according to hydrological year (see function get_hydro_years_seasons())
T	numeric vector. air temperature regime (365 or 366 values)
Q	numeric vector. streamflow regime (365 or 366 values)
n	integer. smoothing window
remove_last	logical. should the last day of the year (366) be
peridos	numeric vector. a vector of length 3 defining (1) the start of the T+Q+ period, (2) the start (resp. end) of the T-Q-2 (resp. T-Q-1) period and (3) the end of the T-Q-2 period. Note: the other period boundaries are computed using the air temperature and streamflow regime maxima timings.

Value

A vector of length 5 with the following named components: "TQslp_TpQp", "TQslp_TpQm", "TQslp_TmQm1", "TQslp_TmQm2", "tQmax"

References

I. Horner, F. Branger, H. McMillan, O. Vannier, and I. Braud, “Information content of snow hydrological signatures based on streamflow, precipitation and air temperature,” Hydrological Processes, vol. 34, no. 12, Art. no. 12, 2020, doi: 10.1002/hyp.13762.

See Also

[tq_periods][regime_curve][q_timing][tq_slopes]

IvanHeriver/hsa-R-package documentation built on Dec. 17, 2021, 11:32 p.m.