Median daily potential evaporation for irrigation area (i.e. ~44km2), based
on 1x1km2 grids of DWD. Downloaded with read_daily_data_over_shape
between 2017-01-01 and 2020-12-31
Format
A data.frame with 1461 rows and 10 variables:
- file
name of downloaded grid file source
- date
date
- year
year
- month
month
- day
day
- mean
spatially averaged, mean
- sd
spatially averaged, standard deviation
- min
spatially averaged, min
- max
spatially averaged, max
- n_values
number of grid-cells used for spatial averaging
Examples
if (FALSE) { # \dontrun{
### Data download
remotes::install_github("kwb-r/kwb.dwd")
shape_file <- system.file("extdata/input-data/gis/Abwasserverregnungsgebiet.shp",
package = "flextreat.hydrus1d")
# Only data of full months can currently be read!
evapo_p <- kwb.dwd::read_daily_data_over_shape(
file = shape_file,
variable = "evapo_p",
from = "201701",
to = "202012"
)} # }
head(flextreat.hydrus1d::evapo_p)
#> file date year month day mean
#> 1 grids_germany_daily_evapo_p_20170501.asc 2017-05-01 2017 5 1 2.398051
#> 2 grids_germany_daily_evapo_p_20170502.asc 2017-05-02 2017 5 2 1.868663
#> 3 grids_germany_daily_evapo_p_20170503.asc 2017-05-03 2017 5 3 2.113928
#> 4 grids_germany_daily_evapo_p_20170504.asc 2017-05-04 2017 5 4 1.478253
#> 5 grids_germany_daily_evapo_p_20170505.asc 2017-05-05 2017 5 5 1.341413
#> 6 grids_germany_daily_evapo_p_20170506.asc 2017-05-06 2017 5 6 2.474103
#> sd min max n_values
#> 1 0.7951378 0.5 3.7 358303
#> 2 0.5679082 0.3 3.7 358303
#> 3 0.3613727 0.5 3.5 358303
#> 4 0.4204923 0.2 3.6 358303
#> 5 0.5454047 0.3 3.8 358303
#> 6 0.7092278 0.8 4.2 358303