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marideeweber committed Sep 4, 2024
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Expand Up @@ -108,9 +108,9 @@ There are some naming conventions for a few emission species/sectors within GCAM

Outlier air pollutant emission factors are replaced with the global (GCAM) or national (GCAM-USA) median.

* GCAM: Outlier emission factors are identified as being two standard deviations above or three below the national median for a given pollutant, year, supplysector, subsector, and technology. These outliers are replaced with the global median for the given pollutant, year, supplysector, subsector, and technology. This method is applied to replace outliers for all supplysectors in the [CEDS data](https://github.com/JGCRI/CEDS) except for out_resources. The out_resources supplysector was not included since previous work implemented an alternate strategy to address outliers here, as additional processing needed to be done to exclude model regions that had very low resource production and did not yield reliable emission factors.
* GCAM: Outlier emission factors are identified as being two standard deviations above or three below the global median for a given pollutant, year, supplysector, subsector, and technology. These outliers are replaced with the global median for the given pollutant, year, supplysector, subsector, and technology. This method is applied to replace outlier emission factors for air pollutants for all supplysectors in the [CEDS data](https://github.com/JGCRI/CEDS) except for out_resources. The out_resources supplysector was not included since previous work implemented an alternate strategy to address outliers here, as additional processing needed to be done to exclude model regions that had very low resource production and did not yield reliable emission factors.

* GCAM-USA: Outlier emission factors are identified as being two standard deviations above or three below the national median for a given pollutant, year, supplysector, subsector, and technology. These outliers, and emission factors that are missing or infinite, are replaced with the national median for the given pollutant, year, supplysector, subsector, and technology. This method is applied to replace outliers for air pollutants in the GCAM-USA transportation, electricity generation, buildings, and industrial energy use sectors.
* GCAM-USA: Outlier emission factors are identified as being two standard deviations above or three below the national median for a given pollutant, year, supplysector, subsector, and technology. These outliers, and emission factors that are missing or infinite, are replaced with the national median for the given pollutant, year, supplysector, subsector, and technology. This method is applied to replace outlier emission factors for air pollutants in the GCAM-USA transportation, electricity generation, buildings, and industrial energy use sectors.

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