marsInfiltrationRate_inhr: Infiltration Rate

In taywater/pwdgsi: Philadelphia Water Department Green Stormwater Infrastructure

Infiltration Rate

Description

Estimated infiltration rate based on observed data

Usage

marsInfiltrationRate_inhr(
  event,
  dtime_est,
  rainfall_in,
  dcia_ft2,
  orifice_height_ft = NA,
  orifice_diam_in = NA,
  storage_depth_ft,
  storage_vol_ft3,
  waterlevel_ft,
  depth_in = 6,
  discharge_coeff = 0.62
)

Arguments

event	Rainfall event ID (grouping variable)
dtime_est	A vector of POSIXct date times, in ascending order
rainfall_in	Rainfall depths during periods corresponding to times in dtime_est (in)
dcia_ft2	Directly connected impervious area (sf)
orifice_height_ft	Orifice height (ft)
orifice_diam_in	Orifice diameter (in)
storage_depth_ft	Maximum storage depth of system (ft)
storage_vol_ft3	Maximum storage volume (pore space) of system, in cubic feet
waterlevel_ft	Observed water level data (ft)
depth_in	Depth at which to calculate infiltration rate (default 6in, which creates a range of 7in to 5in)
discharge_coeff	Orifice discharge coefficient (default 0.62)

Value

Output is estimated infiltration rate (in/hr). These outputs are codes for the following messages:

-900

Event does not include observation data that approximately equals specified water depth

-910

Code captures rising limb in event.

-920

Rainfall occurs during recession period in specified depth range.

-930

Infiltration rate is negligible; calculated infiltration rate is less than 0.1in/hr.

See Also

marsUnderdrainOutflow_cf

Examples

obs_250_fill %>%
  dplyr::filter(is.na(event) == FALSE) %>%
  dplyr::group_by(event) %>%
  dplyr::arrange(dtime_est)%>%
  dplyr::summarize( #Calculate performance metrics
    #Observed infiltration rate
    Infiltration_Rate_inhr = marsInfiltrationRate_inhr(event, dtime_est,
                                               rainfall_in,
                                               dcia_ft2,
                                               storage_depth_ft = storage_depth_ft,
                                               storage_vol_ft3 = storage_vol_ft3,
                                               orifice_diam_in,
                                               orifice_height_ft,
                                               waterlevel_ft = level_ft))

taywater/pwdgsi documentation built on April 19, 2024, 11:10 a.m.