setParameter-RPhosFate-method function

Set parameter(s)

Sets one or more model parameters or substance parameter values.

## S4 method for signature 'RPhosFate'
setParameter(x, ...)

Arguments

• x: An S4 RPhosFate river catchment object.
• ...: Names and values of the parameters to set. See model parameter arguments section for further information.

Returns

An S4 RPhosFate river catchment object.

Model parameter arguments

• ns_slp_min: A numeric scalar specifying the minimum bounding slope in % (defaults to 1.0).

• ns_slp_max: A numeric scalar specifying the maximum bounding slope in % (defaults to 999.0).

• ns_rhy_a: A numeric scalar specifying a network constant depending on the discharge frequency needed for the calculation of the hydraulic radius, which in turn is a prerequisite for substance transport (defaults to 0.09

  representing a discharge frequency of approximately six years).

• ns_rhy_b: A numeric scalar specifying a geometry scaling exponent depending on the discharge frequency needed for the calculation of the hydraulic radius, which in turn is a prerequisite for substance transport (defaults to 0.50 representing a discharge frequency of approximately six years).

• ns_cha_rto: A numeric scalar specifying the ratio of the channel to the cell width determining the widths of the riparian zones required for substance transport (defaults to 0.5).

• ns_man_rip: A numeric scalar specifying Manning's roughness coefficient of the riparian zones within channel cells required for substance transport (defaults to 0.32).

• ns_man_cha: A numeric scalar specifying Manning's roughness coefficient of the channel within channel cells required for substance transport

  (defaults to 0.04).

• ns_dep_ovl: A numeric scalar specifying the overland deposition rate per second required for substance transport (calibration parameter; no default).

• ns_dep_cha: A numeric scalar specifying the channel deposition rate per second required for substance transport (calibration parameter; no default).

• nv_tfc_inl: A named numeric vector specifying the inlet transfer coefficients required for substance transport, for example, c(SS = 0.6, PP = 0.6) (no default).

• nv_enr_rto A named numeric vector specifying the substance enrichment ratios required for substance except SS transport, for example, c(PP = 2.0) (calibration parameter; no default).

• nm_olc: A two column numeric matrix specifying one or more catchment outlet coordinates required for the in-channel retention ratio of calibrationQuality (no default).

• df_cdt: A data.frame with calibration data, which must have at least the following three columns and one or more columns with substance river loads in t/yr (no default):

  • ID: ID(s) of the gauge(s)
  • x: x-coordinate(s) of the gauge(s)
  • y: y-coordinate(s) of the gauge(s)

Examples

# temporary demonstration project copy
cv_dir <- demoProject()
# load temporary demonstration project
x <- RPhosFate(
  cv_dir = cv_dir,
  ls_ini = TRUE
)

x <- setParameter(x, ns_dep_ovl = 15e-4)
x <- setParameter(
  x,
  nv_tfc_inl = c(SS = 0.6, PP = 0.6),
  nv_enr_rto = c(PP = 1.4)
)

See Also

getParameter