Function to calculate the hydraulic parameters of the Hantush-Jacob model

hantush_jacob_calculate_parameters(ptest, par, hydraulic = TRUE)

Arguments

ptest

A pumping_test object

par

A list with the values of a (slope) and t0 (Intercept) of the straight line fitted to the drawdown data using the Cooper-Jacob approach, and lambda is the leakage factor.

hydraulic

Logical flag to indicate if hydraulic parameters are calculated. If False, the the statistcal parameter are calculated.

Value

A list with

  • Tr = Transmissivity

  • Ss = Storage coefficient

  • Ka = Aquitard Hydraulic Conductivity

  • radius_influence

References

Hantush, M. S. Flow to wells in aquifers separated by a semipervious layer. Journal of Geophysical Research, 1967, 72, 1709.

See also

Examples

data(hantush_jacob) ptest <- pumping_test('Well1', Q = 6.309e-3, r = 3.048, t=hantush_jacob$t, s = hantush_jacob$s) ptest$additional_parameters$B <- 6.096 sol0 <- hantush_jacob_solution_initial(ptest) hantush.par <- hantush_jacob_calculate_parameters(ptest,sol0) print(hantush.par)
#> $Tr #> [1] 0.0001476443 #> #> $Ss #> [1] 9.647698e-05 #> #> $Ka #> [1] 3.888915e-08 #>