This function processes CHELSA climate data, with an option to download them first. It processes each variable to the European scale and reference grid, and outputs in TIFF and NetCDF (NC) formats. It also saves grouped data for each of the 46 climate scenarios.
Usage
CHELSA_Process(
FromHPC = TRUE,
EnvFile = ".env",
NCores = 8,
Download = FALSE,
Overwrite = FALSE,
Download_Attempts = 10,
Sleep = 5,
OtherVars = "",
BaseURL = paste0("https://os.zhdk.cloud.switch.ch/envicloud/",
"chelsa/chelsa_V2/GLOBAL/"),
Download_NCores = 4,
CompressLevel = 5,
OverwriteProcessed = FALSE
)Arguments
- FromHPC
Logical indicating whether the work is being done from HPC, to adjust file paths accordingly. Default:
TRUE.- EnvFile
Character. Path to the environment file containing paths to data sources. Defaults to
.env.- NCores
Integer. Number of CPU cores to use for parallel processing. Defaults to 8.
- Download
Logical, whether to download the CHELSA files. Defaults to
FALSE.- Overwrite
Logical, whether to re-download files that already exist. Defaults to
FALSE.- Download_Attempts
Integer. The maximum number of download attempts. Defaults to 10.
- Sleep
Integer. Time in seconds to wait after each download attempt. Defaults to 5.
- OtherVars
Character. First letters of variables other than bioclimatic variables to be processed. Defaults to "npp", which means processing bioclimatic variables (bio1-19) and Net Primary Productivity will be processed. If
OtherVarsis set to "", only bioclimatic variables will be processed. See CHELSA_Vars for a detailed information on CHELSA climate variables.- BaseURL
String, the base URL for downloading CHELSA climate data.
- Download_NCores
integer. Number of CPU cores to use for parallel downloading of CHELSA data. Only valid if Download =
TRUE. Defaults to 4.- CompressLevel
Integer; the level of compression to use when saving NetCDF files. Default is 5.
- OverwriteProcessed
Logical; whether to overwrite already processed files. Default is
FALSE.