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Reading meteorological data from SAFRAN NetCDF files

Source: R/TnetSAFRAN.R
tnet_safran_readfiles.Rd

This function will read all necessary hourly meteological data from SAFRAN netCDF files in a directory.

The variables readed from the SAFRAN netCDF files are the following:

  • Tair : Air temperature, transformed from °K to °C

  • Qair : Air humidity

  • Wind : Wind velocity

  • LWdown : Long wave radiation

  • SWdown : Shortwave radiation (direct + indirect)

Files must be coming from the INRAE pnas server (internal) or from the AERIS catalog (open source). AERIS Safran data can be downloaded using tnet_safran_download().

Usage

tnet_safran_readfiles(folder_data, folder_export, shapefile, date_start, date_end)

Arguments

folder_data

Path to the folder containing all NetCDF SAFRAN files

folder_export

Path to the folder where export files will be written

shapefile

Shapefile where all SAFRAN grid IDs are writen for T-NET. Can be .shp of .gpkg file.

date_start

character (see TooffR::text_toDate()) or POSICxt or numeric. Starting date (or starting year) to read the file.

date_end

character (see TooffR::text_toDate()) or POSICxt or numeric. Ending date (or ending year) to read the file.

source

Source of the safran NETCDF. Can be "aeris" or "INRAEpnas".

Value

NetCDF files containing all needed meteorological data for T-NET, one file is created for each exported variables

References

https://www.aeris-data.fr/catalogue/?uuid=9db737a1-d0bf-9c89-330f-7fc4d0482d1c

See also

tnet_safran_download()

Examples

## Run directly the function providing all info
tnet_safran_readfiles(folder_data = "path/to/SAFRANfolder",
                folder_export = "path/to/ExportFolder",
                shapefile = "path/to/shapefile.shp",
                start = "2002-08-01 00:00:00",
                end = "2017-07-31 23:00:00",
                source = "aeris")
#> Error in tnet_safran_readfiles(folder_data = "path/to/SAFRANfolder", folder_export = "path/to/ExportFolder",     shapefile = "path/to/shapefile.shp", start = "2002-08-01 00:00:00",     end = "2017-07-31 23:00:00", source = "aeris"): unused arguments (start = "2002-08-01 00:00:00", end = "2017-07-31 23:00:00")