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Download EDGAR Emissions Data

Source: R/download.R
download_edgar.Rd

Constructs and optionally downloads EDGAR emissions data URLs based on user-specified inputs including species, temporal resolution, emission sectors, and file formats.

Usage

download_edgar(
  species = c("BC", "CO", "NH3", "NMVOC", "NOx", "OC", "PM10", "PM2.5", "SO2"),
  version = "8.1",
  temp_res = NULL,
  sector_yearly = NULL,
  sector_monthly = NULL,
  sector_voc = NULL,
  format = "nc",
  output = "emi",
  year_range = NULL,
  voc = NULL,
  directory_to_save = NULL,
  acknowledgement = FALSE,
  download = FALSE,
  remove_command = FALSE,
  unzip = TRUE,
  remove_zip = FALSE,
  hash = FALSE
)

Arguments

species

Character vector. One or more species to download. Supported values: "BC", "CO", "NH3", "NMVOC", "NOx", "OC", "PM10", "PM2.5", "SO2". Input is case-insensitive and supports "pm2.5" or "pm25".

version

Character. EDGAR data version. Supported values: "8.1" for most recent version data or "8.1_voc" for VOC speciation data.

temp_res

Character. Temporal resolution for specification with version 8.1. One of "yearly", "monthly", or "timeseries". temp_res is not needed for version=8.1_voc and will be ignored if specified.

sector_yearly

Character vector or NULL. Emission sectors for yearly data. If NULL, totals will be used. Possible values include: "AGS", "AWB", "CHE", "ENE", "IND", "MNM", "NMM", "PRU_SOL", "RCO", "REF_TRF", "SWD_INC", "SWD_LDF", "TNR_Aviation_CDS", "TNR_Aviation_CRS", "TNR_Aviation_LTO", "TNR_Aviation_SPS", "TNR_Other", "TNR_Ship", "TRO", "WWT"

sector_monthly

Character vector or NULL. Emission sectors for monthly data. If NULL, the function will use full-species files (not sector-specific). Supported values: "AGRICULTURE", "BUILDINGS", "FUEL_EXPLOITATION", "IND_COMBUSTION", "IND_PROCESSES", "POWER_INDUSTRY", "TRANSPORT", "WASTE".

sector_voc

Character vector or NULL. Emission sectors for VOC speciation data. If NULL, the function will use full-species files (not sector-specific). Supported values: "AGRICULTURE", "BUILDINGS", "FUEL_EXPLOITATION", "IND_COMBUSTION", "IND_PROCESSES", "POWER_INDUSTRY", "TRANSPORT", "WASTE".

format

Character. File format to download. Typically "nc" (NetCDF) or "txt". Flux output and monthly outputs are only supported in .nc format

output

Character. Output type. Supported values include "emi" for emissions and "flx" for fluxes.

year_range

Numeric vector of length 1, 2 or NULL. Year range, e.g., 2021, or c(2021, 2022). If NULL, uses all available years (1970-2022 for yearly data, 2000-2022 for monthly and VOC speciation data)

voc

Integer vector or NULL. Used for VOC speciation in version "8.1_voc". Accepts integers from 1 to 25. See: https://edgar.jrc.ec.europa.eu/dataset_ap81_VOC_spec#p3 for reference on speciation groups and VOC numbers.

directory_to_save

character(1). Directory to save data. Two sub-directories will be created for the downloaded zip files ("/zip_files") and the unzipped data files ("/data_files").

acknowledgement

logical(1). By setting TRUE the user acknowledges that the data downloaded using this function may be very large and use lots of machine storage and memory.

download

logical(1). FALSE will generate a *.txt file containing all download commands. By setting TRUE the function will download all of the requested data files.

remove_command

logical(1). Remove (TRUE) or keep (FALSE) the text file containing download commands. Default is FALSE.

unzip

logical(1). Unzip zip files. Default is TRUE.

remove_zip

logical(1). Remove zip file from directory_to_download. Default is FALSE.

hash

logical(1). By setting TRUE the function will return an rlang::hash_file() hash character corresponding to the downloaded files. Default is FALSE.

Value

A list of download URLs (character). Optionally downloads available files and warns about missing ones.

  • For hash = FALSE, NULL

  • For hash = TRUE, an rlang::hash_file character.

  • Zip and/or data files will be downloaded and stored in directory_to_save.

References

European Comission Joint Research Centre (2023). “EDGAR Global Air Pollutant Emissions Version 8.1.” https://edgar.jrc.ec.europa.eu/index.php/dataset_ap81. European Comission Joint Research Centre (2025). “Emissions Database for Global Atmospheric Research Global Speciated NMVOC Emissions Version 8.1.” https://edgar.jrc.ec.europa.eu/dataset_ap81_VOC_spec#sources. nolint end

Author

Mariana Alifa Kassien

Examples

if (FALSE) { # \dontrun{
download_edgar(
species = "CO",
acknowledgement = TRUE,
temp_res = "yearly",
sector_yearly = "ENE",
year_range = c(2021, 2022)
)
} # }
if (FALSE) { # \dontrun{
download_edgar(
species = "PM2.5",
acknowledgement = TRUE,
temp_res = "monthly",
sector_monthly = c("TRANSPORT", "WASTE")
)
} # }
if (FALSE) { # \dontrun{
download_edgar(
species = "SO2",
acknowledgement = TRUE,
temp_res = "timeseries"
)
} # }