build_era5_request: Builds a request compatible with the CDS for all microclimate...

In everydayduffy/mcera5: Tools to Acquire and Process ERA5 Data for Use in Microclimate Modelling

Builds a request compatible with the CDS for all microclimate relevant climate variables.

Description

'build_era5_request' creates a request or set of requests that can be submitted to the Climate Data Store (CDS) with the 'ecmwfr' package. Spatial and temporal extents are defined by the user, and requests are automatically split by month. The following variables are requested: 2m_temperature, 2m_dewpoint_temperature, surface_pressure, 10m_u_component_of_wind, 10m_v_component_of_wind, total_precipitation, total_cloud_cover, mean_surface_net_long_wave_radiation_flux, mean_surface_downward_long_wave_radiation_flux, total_sky_direct_solar_radiation_at_surface, surface_solar_radiation_downwards.

Usage

build_era5_request(
  xmin,
  xmax,
  ymin,
  ymax,
  start_time,
  end_time,
  by_month = TRUE,
  outfile_name = "era5_out"
)

Arguments

xmin	The minimum longitude to request data for.
xmax	The maximum longitude to request data for.
ymin	The minimum latitude to request data for.
ymax	The maximum latitude to request data for.
start_time	a POSIXlt object indicating the first hour for which data are required.
end_time	a POSIXlt object indicating the last hour for which data are required.
by_month	logical indicating whether to split the request by month (default is TRUE)
outfile_name	character prefix for .nc files when downloaded (the year, month, and file extension is automatically added). Keep in mind that you may want to submit multiple (or many) requests, and therefore this prefix should adequately describe a unique query (e.g. by its spatial or temporal extent).

everydayduffy/mcera5 documentation built on Feb. 15, 2025, 11:33 p.m.