diff options
Diffstat (limited to 'man')
| -rw-r--r-- | man/PEC_sw_drift.Rd | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/man/PEC_sw_drift.Rd b/man/PEC_sw_drift.Rd index 63b330f..c576753 100644 --- a/man/PEC_sw_drift.Rd +++ b/man/PEC_sw_drift.Rd @@ -15,6 +15,9 @@ PEC_sw_drift( crop_group_focus = c("arable", "hops", "vines, late", "vines, early", "fruit, late", "fruit, early", "aerial"), distances = c(1, 5, 10, 20), + formula = c("Rautmann", "FOCUS"), + water_width = 100, + side_angle = 90, rate_units = "g/ha", PEC_units = "µg/L" ) @@ -27,11 +30,12 @@ PEC_sw_drift( \item{water_depth}{Depth of the water body in cm} \item{drift_percentages}{Percentage drift values for which to calculate PECsw. -'drift_data' and 'distances' if not NULL.} +Overrides 'drift_data' and 'distances' if not NULL.} \item{drift_data}{Source of drift percentage data. If 'JKI', the \link{drift_data_JKI} -included in the package is used. If 'RF', the Rautmann formula is used, if -implemented for the crop type and number of applications} +included in the package is used. If 'RF', the Rautmann drift data are calculated +either in the original form or integrated over the width of the water body, depending +on the 'formula' argument.} \item{crop_group_JKI}{When using the 'JKI' drift data, one of the German names as used in \link{drift_parameters_focus}.} @@ -40,6 +44,15 @@ as used in \link{drift_parameters_focus}.} \item{distances}{The distances in m for which to get PEC values} +\item{formula}{By default, the original Rautmann formula is used. If you +specify "FOCUS", mean drift input over the width of the water body is +calculated as described in Chapter 5.4.5 of the FOCUS surface water guidance} + +\item{water_width}{Width of the water body in cm} + +\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{PEC_units}{Requested units for the calculated PEC. Only µg/L currently supported} @@ -67,6 +80,14 @@ PEC_sw_drift(100, distances = c(1, 3, 5, 6, 10, 20, 50, 100), drift_data = "RF", # Using custom drift percentages is also supported PEC_sw_drift(100, drift_percentages = c(2.77, 0.95, 0.57, 0.48, 0.29, 0.15, 0.06, 0.03)) + +# The influence of assuming a 45° angle of the sides of the waterbody and the width of the +# waterbody can be illustrated +PEC_sw_drift(100) +PEC_sw_drift(100, drift_data = "RF") +PEC_sw_drift(100, drift_data = "RF", formula = "FOCUS") +PEC_sw_drift(100, drift_data = "RF", formula = "FOCUS", side_angle = 45) +PEC_sw_drift(100, drift_data = "RF", formula = "FOCUS", side_angle = 45, water_width = 200) } \seealso{ \link{drift_parameters_focus}, \link{drift_percentages_rautmann} |