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Calculate water type

Source: R/utils.R
water_type.Rd

Water type based on anions Cl, SO4, HCO3 and cations Ca, Mg, Na and K. Elements are ranked by proportion MEQ, all greater than 10% are listed in descending order of presence, cations first. Water type is only calculated for samples with valid charge balances. Missing ions are ignored (i.e. treated as 0).

Usage

water_type(d)

Arguments

d

Data frame. Must contain columns Sample_Date, SampleID, StationID, Cl_meq, SO4_meq, HCO3_meq, Ca_meq, Mg_meq, Na_meq, K_meq, and charge_balance.

Value

Data frame with added column water_type.

Examples


d <- data.frame(Sample_Date = "2022-01-01", SampleID = "999990-01", StationID = 000,
                Cl_meq = 0.0226, SO4_meq = 0.0208, HCO3_meq = 1.54,
                Ca_meq = 0.187, Mg_meq = 0.490, Na_meq = 0.465, K_meq = 0.0665,
                charge_balance = 0.5)

d <- water_type(d)
d
#>   Sample_Date  SampleID StationID Cl_meq SO4_meq HCO3_meq Ca_meq Mg_meq Na_meq
#> 1  2022-01-01 999990-01         0 0.0226  0.0208     1.54  0.187   0.49  0.465
#>    K_meq charge_balance water_type
#> 1 0.0665            0.5 Mg-Na-HCO3