determine.skin.runoff.E3D: Skinfactor determination

In jonaslenz/toolbox.e3d: Toolbox for the soil erosion modeling tool EROSION-3D

Skinfactor determination

Description

This function calibrates parameter skinfactor that calculated cumulative runoff equals the measured value from a rainfall experiment. Therefore it models a rainfall-experiment plot using EROSION-3D.

Usage

determine.skin.runoff.E3D(
  Cl,
  Si,
  Sa,
  Corg,
  Bulk,
  Moist,
  CumRunoff,
  intensity,
  plotwidth,
  plotlength,
  slope,
  endmin,
  ponding = FALSE,
  simlines = 100,
  path = tempdir(),
  silent = TRUE,
  version = get_version.E3D()
)

Arguments

Cl	numeric
Si	numeric
Sa	numeric
Corg	numeric
Bulk	numeric
Moist	numeric
CumRunoff	numeric value, cumulative runoff is the fitting target of this function
intensity	numeric vector, rainfall intensity of preceding time interval - correspondences to endmin
plotwidth	numeric value, width of the experimental plot, CumRunoff will be normalized to one meter width using this parameter
plotlength	integer value, length of experimental plot, needs to be an integer due to spatial resolution of 1 meter in E3D
slope	integer value, mean slope of experimental plot in percent
endmin	numeric vector, duration since start of rainfall experiment in full minutes, length must equal length of intensity
ponding	logical TRUE means ponding option is used, FALSE - is not used in E3D, ponding limits amount of infiltrating water to available water
simlines	integer value, number of parallel calculated plots, higher numbers decrease number of iteration steps with E3D, but increases number of write-read operations
path	path to modeling directory, default is a temporary directory
silent	logical, if TRUE skinfactor iteration steps will be written as message
version	version number can be set manually if known to reduce calls to E3D and save processing time

Examples

determine.skin.runoff.E3D(Cl = 30, Si = 40, Sa = 30, Corg = 1.3, Bulk = 1300, Moist = 22, CumRunoff = 100, intensity = 0.5, plotwidth = 1, plotlength = 10, slope = 10, endmin = 30, ponding = TRUE, silent = FALSE)

jonaslenz/toolbox.e3d documentation built on Jan. 16, 2025, 5:24 a.m.