Download ERA5 meteorological data from the Copernicus Data Store (CDS). Create a free CDS user account by self registering. Once your user account has been verified you can get your personal user ID and key by visiting the user profile. Further information can be found on the ecmwfr package page.
Usage
download_era5_grib(
shape = NULL,
lat,
lon,
buffer = 0.1,
variable = c("10m_u_component_of_wind", "10m_v_component_of_wind",
"2m_dewpoint_temperature", "2m_temperature", "snowfall", "surface_pressure",
"surface_solar_radiation_downwards", "surface_thermal_radiation_downwards",
"total_precipitation"),
year = 2022,
month = 1:2,
site = "test",
user = NULL,
era5_dataset = "reanalysis-era5-land",
path = ".",
job = FALSE
)Arguments
- shape
sf object; shapefile or spatial object to download data for.
- lat
numeric; latitude
- lon
numeric; longitude
- buffer
numeric; buffer around the point in degrees. Default is 0.1.
- variable
vector of ERA5 variable names e.g. "2m_temperature", "total_precipitation". Default variables are: "10m_u_component_of_wind", "10m_v_component_of_wind", "2m_dewpoint_temperature", "2m_temperature", "snowfall", "surface_pressure", "surface_solar_radiation_downwards", "surface_thermal_radiation_downwards", "total_precipitation".
- year
numeric; year or vector of years.
- month
numeric; month or vector of months. Defaults to 1:12.
- site
string of site name which will be appended to the file
- user
user (email address) used to sign up for the ECMWF data service, if only a single user is needed it defaults to ("ecmwfr").
- era5_dataset
string; of which ERA5 dataset to use. Can be 'reanalysis-era5-single-levels' or 'reanalysis-era5-land'
- path
filepath to store downloaded file
Examples
if (FALSE) { # \dontrun{
lat <- -38.07782
lon <- 176.2673
year <- 2024
month <- 1:2
variable <- "2m_temperature"
path <- "data/test"
ecmwfr::wf_set_key(key = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
user = "person@email.com")
files <- download_era5_grib(lat = lat, lon = lon, year = year, month = month,
variable = variable, path = path, user = user)
files
} # }