qm_vol function

Monthly river discharge [m3/s] to volume [hm3]

Converts mean monthly river discharge [m3/s] to total volume discharge [hm3].

qm_vol(x, col_name, out_name = NULL)

Arguments

• x: data frame with class Date in the first column and numeric on the others.
• col_name: string with column(s) name(s) where to apply the function.
• out_name: optional. String with new column(s) name(s). If you set it as NULL, the function will overwrite the original data frame.

Returns

The same data frame but with the total volume discharge.

Examples

# read guido daily streamflow records
path <- system.file('extdata', 'snih_qd_guido.xlsx',
        package = 'hydrotoolbox')

# read, aggregate the function to monthly resolution and get the volume
qm_guido <-
  read_snih(path = path, by = 'day', out_name = 'q(m3/s)') %>%
  agg_table(col_name = 'q(m3/s)', fun = 'mean', period = 'monthly',
            out_name = 'qm(m3/s)') %>%
  qm_vol(col_name = 'qm(m3/s)', out_name = 'vm(hm3)')