Estimate the SFGD (q0 [m2/d]) .

Estimate the SGD volume based on Strack (1976) analytical solution.

Usage

estimate_sgd(
  inputData,
  calibratableParams,
  constParams,
  nw = 120L,
  warmup = 1500L
)

Arguments

inputData

A data frame containing the input data for the model.

calibratableParams

A list of calibratable parameters.

constParams

A list of constant parameters.

nw

A integer indicating the period you want to average the recharge.

warmup

A integer indicating the number of days to warm up the model.

Value

A SGD_ESTIMATION_DF class.

Details

Estimate the SGD volume based on Strack (1976) analytical solution.

• The inputData should be a data.frame containing the required columns for the model (R, E0, q1, hf, phi1, phi2).

  • R is a numeric vector of the daily precipitation (mm).

  • E0 is a numeric vector of the daily potential evapotranspiration (mm).

  • q1 is a numeric vector of the daily pumping rate (m3/d).

  • hf is a numeric vector of the initial groundwater level (mm), Only the first value is used as the initial value for the SB1.

  • phi1 is a numeric vector of the initial water level in the first soil bucket (mm). Only the first value is used as the initial value for the SB1.

  • phi2 is a numeric vector of the inital water level in the second soil bucket (mm). Only the first value is used as the initial value for the SB2.

• calibratableParams should be a list of calibratable parameters. It's recommended to use json_to_paramter_list to create this list.

• nw A integer indicating the period you want to average the recharge.

• warmup A integer indicating the number of days to warm up the model.