calculate_drainage_flow: Calculates the flow rate from cumulative drainage

In ChrisBogner/ViscousFlow: Analysis of tracer experiments with the viscous flow approach by Peter Germann

Description

The relative weights are calculated by taking the first derivative using the function D1 from library sfsmisc. Then, they are transformed into a flow rate. Both, a smoothed version of the derivative and the trivial differences are returned.

Usage

calculate_drainage_flow(
  scale_s,
  rho_H20 = 0.99704,
  D,
  delta_out = 30,
  convert_mm_h = TRUE
)

Arguments

scale_s	tibble. First column time in sec, second column cumulative weight of the drained water
rho_H20	numeric. Density of water, default is 0.99704 g/mL or g/cm^3
D	numeric. Diameter of the soil column in m.
delta_out	numeric. Output sampling time interval, default is 30 sec. Must equal at least the length of the original sampling interval.
convert_mm_h	logical. Should the flow rate be converted to mm/h. Default is TRUE.

Value

tibble. First column is time in sec, second is the flow rate in mm/h

ChrisBogner/ViscousFlow documentation built on June 13, 2021, 7:47 a.m.