To generate import emission factors from exiobase, run the script generate_import_factors.py
An import factor is created for an environmental flow (e.g., Carbon dioxide) in units of that flow per USD (e.g., kg/USD).
For each year, the following files are generated:
- US_detail_import_factors_exio_{year}.csv: Single set of import factors for the US by detail sector.
- US_summary_import_factors_exio_{year}.csv: Single set of import factors for the US by summary sector.
- Regional_detail_import_factors_exio_{year}.csv: Import factors for each of seven regions, by detail sector,
- Regional_summary_import_factors_exio_{year}.csv: Import factors for each of seven regions, by summary sector,
- import_shares_{year}.csv: Provides the contribution to sector imports by country
- multiplier_df_exio_{year}.csv: Full dataframe with emission factors and contributions by region and sector.
File names are appended with the BEA schema year, e.g., _17sch
.
The field in the _import_factors files are defined as
Field | Description | Example |
---|---|---|
Sector | USEEIO sector code | 325111 |
Year | Year of data | 2021 |
Unit | Numerator unit for Import factor | kg |
ReferenceCurrency | Denominator unit for Import factor | USD |
PriceType | Price type of ReferenceCurrency | Basic |
Flowable | Name of substance | Carbon dioxide |
Context | Environmental compartment to or from | air |
FlowUUID | ID from FEDEFL | b6f010fb-a764-3063-af2d-bcb8309a97b7 |
FlowAmount | Import factor value | 0.57 |
BaseIOLevel | BEA IO table basis | Detail |
The environmental flows fields are the same as those used for USEEIO which are from the Federal LCA Commons Elementary Flow List.
To make calls to BEA for service imports data (by BEA service category, country, and year), users must first register at https://apps.bea.gov/api/signup/. After doing so, users will be provided with an API key to the provided email. Store this as 'BEA_API_key.yaml' in the API subfolder of the import_factors_exio directory.
- pandas
- esupy
- fedelemflowlist
- currencyconverter
- pymrio