1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
# Regression parameters for the Rautmann drift data
The parameters were extracted from Appendix B to the FOCUS surface water
guidance using the R code given in the file
`data_generation/drift_parameters_focus.R` installed with this package.
The appendix itself is not included in the package, as its licence is
not clear.
## Usage
``` r
drift_parameters_focus
```
## Format
A [tibble::tibble](https://tibble.tidyverse.org/reference/tibble.html).
## Details
For the hinge distance, `Inf` was substituted for the cases where no
hinge distance is given in the data, in this way parameters C and D are
never used for any distance if A and B are used for the case that the
distance is smaller than the hinge distance.
## References
FOCUS (2014) Generic guidance for Surface Water Scenarios (version 1.4).
FOrum for the Co-ordination of pesticde fate models and their USe.
<http://esdac.jrc.ec.europa.eu/public_path/projects_data/focus/sw/docs/Generic%20FOCUS_SWS_vc1.4.pdf>
FOCUS (2001) FOCUS Surface Water Scenarios in the EU Evaluation Process
under 91/414/EEC. Report of the FOCUS Working Group on Surface Water
Scenarios, EC Document Reference SANCO/4802/2001-rev.2. 245, Appendix B.
<https://esdac.jrc.ec.europa.eu/public_path/projects_data/focus/sw/docs/FOCUS_SWS_APPENDIX_B.doc>
Rautmann, D., Streloke, M and Winkler, R (2001) New basic drift values
in the authorization procedure for plant protection products Mitt. Biol.
Bundesanst. Land- Forstwirtsch. 383, 133-141
## See also
[drift_percentages_rautmann](https://pkgdown.jrwb.de/pfm/reference/drift_percentages_rautmann.md),
[PEC_sw_drift](https://pkgdown.jrwb.de/pfm/reference/PEC_sw_drift.md)
## Examples
``` r
drift_parameters_focus
#> # A tibble: 49 × 8
#> crop_group n_apps percentile A B C D hinge
#> <chr> <int> <int> <dbl> <dbl> <dbl> <dbl> <dbl>
#> 1 arable 1 90 2.76 -0.978 NA NA Inf
#> 2 arable 2 82 2.44 -1.01 NA NA Inf
#> 3 arable 3 77 2.02 -0.996 NA NA Inf
#> 4 arable 4 74 1.86 -0.986 NA NA Inf
#> 5 arable 5 72 1.79 -0.994 NA NA Inf
#> 6 arable 6 70 1.63 -0.986 NA NA Inf
#> 7 arable 7 69 1.58 -0.981 NA NA Inf
#> 8 arable 8 67 1.51 -0.983 NA NA Inf
#> 9 hops 1 90 58.2 -1.00 8655. -2.84 15.3
#> 10 hops 2 82 66.2 -1.20 5555. -2.82 15.3
#> # ℹ 39 more rows
unique(drift_parameters_focus$crop_group)
#> [1] "arable" "hops" "vines, late" "vines, early" "fruit, late"
#> [6] "fruit, early" "aerial"
```
|
