diff options
Diffstat (limited to 'man/PEC_sw_drift.Rd')
| -rw-r--r-- | man/PEC_sw_drift.Rd | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/man/PEC_sw_drift.Rd b/man/PEC_sw_drift.Rd index c576753..3db80d7 100644 --- a/man/PEC_sw_drift.Rd +++ b/man/PEC_sw_drift.Rd @@ -7,7 +7,7 @@ PEC_sw_drift( rate, applications = 1, - water_depth = 30, + water_depth = as_units("30 cm"), drift_percentages = NULL, drift_data = c("JKI", "RF"), crop_group_JKI = c("Ackerbau", "Obstbau frueh", "Obstbau spaet", "Weinbau frueh", @@ -16,14 +16,15 @@ PEC_sw_drift( "fruit, early", "aerial"), distances = c(1, 5, 10, 20), formula = c("Rautmann", "FOCUS"), - water_width = 100, + water_width = as_units("100 cm"), side_angle = 90, rate_units = "g/ha", PEC_units = "µg/L" ) } \arguments{ -\item{rate}{Application rate in units specified below} +\item{rate}{Application rate in units specified below, or with units defined via the +\code{units} package.} \item{applications}{Number of applications for selection of drift percentile} @@ -53,7 +54,8 @@ calculated as described in Chapter 5.4.5 of the FOCUS surface water guidance} \item{side_angle}{The angle of the side of the water relative to the bottom which is assumed to be horizontal, in degrees. The SYNOPS model assumes 45 degrees here.} -\item{rate_units}{Defaults to g/ha} +\item{rate_units}{Defaults to g/ha. For backwards compatibility, only used +if the specified rate does not have \link[units:units]{units::units}].} \item{PEC_units}{Requested units for the calculated PEC. Only µg/L currently supported} } @@ -65,6 +67,10 @@ This is a basic, vectorised form of a simple calculation of a contaminant concentration in surface water based on complete, instantaneous mixing with input via spray drift. } +\details{ +It is recommened to specify the arguments \code{rate}, \code{water_depth} and +\code{water_width} using \link[units:units]{units::units} from the \code{units} package. +} \examples{ PEC_sw_drift(100) # Alternatively, we can use the formula for a single application to |