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* Convert scaling xlsx files to csv format (#218)
* Fix mapping of Tonga (#213)
* Fix sub-VOC chunking seg fault (#232)
* Update CEDS to use IEA v2019 World Energy Stats. (#226)
* CO2 combustion emission factors - fix biofuel accounting (#233)
* Fix differences found across computer types (and possibly R versions as well) (#241)
- Fix FSU energy data disaggregation
- Fix Turkmenistan (tkm) 1992 natural gas consumption data.
* Renv - reproducible environment for CEDS R dependencies (#222)
* Update CO2 Emissions assumptions and data (#236)
* Update metal smelting so2 (#242)
* Update to EDGAR v5 (#245)
* GAINS/ECLIPSE Inventory Update (#240)
* Update MEIC scaling inventory (#246)
* Misc 2019 updates (#255)
* Update Aircraft EFs to EDGAR 5.0. Interpolate over discontinuities.
* Minor updates to diesel S content
* Update Aviation EFs now using actual IEA data to calibrate to EDGAR
* Remove Finland fertilizer discontinuity
* Reduce India heavy oil S content following GAINS
* Add Cement SO2 control (process absorption) fraction
* Add emissions by country/fuel to output.
* Fix discontinuity in USA NMVOC fugitive emissions.
* Update China other transformation (Coal coke production) emissions for BC, OC, SO2
* Increase ash retention for hard coal in India
* Update default emission factor pathways for China cement
* Update China coke production BC and OC emissions to incorporate recent regulations.
* CDIAC disagg. (#254)
* Update EMEP (#252)
* Update usa and twn emissions (#264)
* Update bp to 2019 (#263)
* Change lockfile to base R 3.6.3.
* Canada inventory 3 (#266)
* Shipping update2 (#267)
* 2019_9_11 pre release changes to master (#276)
* Reduce size of IEA data template files
Co-authored-by: patrick_orourke <[email protected]>
Co-authored-by: Matt Nicholson <[email protected]>
Co-authored-by: [email protected] <[email protected]>
# 1) CEDS user-defined energy inputs, metadata, and instructions (U.*.csv)
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# 2) Relevant mapping and instructions files for user-defined energy input which require pre-processing for use in CEDS (A.*-instructions.csv, A.*_sector_map.csv, A.*-mapping.xlsx)
Copy file name to clipboardexpand all lines: README.md
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The Community Emissions Data System (CEDS) produces consistent estimates of global air emissions species over the industrial era (1750 - present). The system is written in R and uses open-source data (with the exception of the IEA energy statistics which must be purchased from IEA). CEDS is publicly available through an [Open Source License](#license-section).
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***
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**Public Release:**December 23, 2019. The current code and data in the repository is a full public release of the CEDS system.
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**Pre-Release:**September 11, 2020. The current code and data in this repository is associated with a pre-release set of data for review and assessment.
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This release was focused on fixing existing issues and adding new system capabilities as compared to the system that produced the CMIP6 data. In particular, the ability of users to add historical energy data for any country, allowing the system to more accurately reflect historical energy consumption trends. This is currently implemented for the USA, UK, and Germany. For details on this release see:
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This pre-release extends the emissions time series to 2019 and updates driver and emissions data throughout. This version builds on the extension of the CEDS system to 2017 described in [McDuffie et al. 2020](https://essd.copernicus.org/preprints/essd-2020-103/). This pre-release focuses on aerosol and ozone precursor emissions.
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* The [release notes](https://github.com/JGCRI/CEDS/wiki/Release-Notes) for a summary of changes since the CMIP6 data release.
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*[Graphs of emission differences](./documentation/Version_comparison_figures_v_2019_12_23.pdf) between this version and the CMIP6 data release documented in Hoesly et al (2018a).
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* Emissions by country and sector, archived [here](https://zenodo.org/record/3606753).
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For details on this release see:
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We are working on a major CEDS data update that will extend the time series to 2018, update historical assumptions where necessary, and will include gridded emissions.
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* See the [release notes](https://github.com/JGCRI/CEDS/wiki/Release-Notes) for a summary of changes and notes on **known issues** with this dataset that are currently being addressed.
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*[Graphs of emission differences](./documentation/Version_comparison_figures_v_2020_09_11_vs_v_2019_12_23.pdf) between this version and the previous December 2019 CEDS data release.
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*[Graphs of emission differences](./documentation/Version_comparison_figures_v_2020_09_11_vs_v_2016_07_16(CMIP6).pdf) between this version and the CEDS CMIP6 data release documented in Hoesly et al (2018a).
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* Emissions by country and sector, archived [here](https://zenodo.org/deposit/4025316).
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Users should use the most recent version of this repository, which will include maintenance updates to address documentation or usability issues. New releases that change emissions data will be noted here and in the [release notes](https://github.com/JGCRI/CEDS/wiki/Release-Notes).
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We encourage assessment of and comments on this pre-release data. The best way to comment on the data is through the [CEDS Issues](https://github.com/JGCRI/CEDS/issues) page. A full release is in progress for fall 2020 and will incorporate as many comments as possible.
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We do not anticipate substantial changes to the CEDS system structure prior to the fall 2020 full release.
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***
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Documentation of CEDS assumptions and system operation, including a user guide, are available at the [CEDS project wiki](https://github.com/JGCRI/CEDS/wiki) and in the [journal paper](https://www.geosci-model-dev.net/11/369/2018/gmd-11-369-2018.html) noted below.
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Documentation of CEDS assumptions and system operation, including a user guide, are available at the [CEDS project wiki](https://github.com/JGCRI/CEDS/wiki) and in the journal papers noted below.
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Current issues with the data or system are documented in the [CEDS Issues](https://github.com/JGCRI/CEDS/issues) system in this GitHub repository. Users can submit issues using this system. These can include anomalies found in either the aggregate or gridded emissions data. Please use an appropriate tag for any submitted issues. Note that by default only unresolved issues are shown. All issues, including resolved issues, can be viewed by removing the "is:open" filter. *Issues relevant for CMIP6 data releases are tagged with a “CMIP6” label (note that issues will be closed when resolved in subsequent CEDS data releases.)*
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Further information can also be found at the [project web site](http://www.globalchange.umd.edu/ceds/), including a [CMIP6 page](http://www.globalchange.umd.edu/ceds/ceds-cmip6-data/) that provides details for obtaining gridded emission datasets produced by this project for use in CMIP6.
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If you plan to use the CEDS data system for a research project you are encouraged to contact [Steve Smith](mailto:[email protected]) so that we can coordinate with any on-going work on the CEDS system and make sure we are not duplicating effort. CEDS is research software, and we will be happy to help and make sure that you are able to make the best possible use of this system.
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Users should use the most recent version of this repository, which will include maintenance updates to address documentation or usability issues. Major changes that alter emission estimates or system structure and use ill be noted in the [release notes](https://github.com/JGCRI/CEDS/wiki/Release-Notes).
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CEDS has only been possible through the participation of many collaborators. Our **collaboration policy** is that collaborators who contribute data used in CEDS updates will be included as co-authors on the journal paper that describes the next CEDS major release. We particularly encourage contributions of updated emission information from countries or sectors not well represented in the data currently used in CEDS.
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# Data Reference
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Reference for [this data version](https://github.com/JGCRI/CEDS/wiki/Release-Notes):
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Hoesly, Rachel; O'Rourke, Patrick; Braun, Caleb; Feng, Leyang; Smith, Steven J.; Pitkanen, Tyler; Seibert, Jonathan J.; Vu, Linh; Presley, Muwan; Bolt, Ryan; Goldstein, Ben; Kholod, Nazar (2019, December 23). Community Emissions Data System (Version Dec-23-2019)[Zenodo. http://doi.org/10.5281/zenodo.3592073](https://zenodo.org/record/3606753).
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O'Rourke, Patrick R, Smith, Steven J., McDuffie, Erin E., Crippa, Monica, Klimont, Zbigniew, Mott, Andrea, Wang, Shuxiao, Nicholson, Matthew B, Feng, Leyang, and Hoesly, Rachel M. (2020, September 11). CEDS v-2020-09-11 Pre-Release Emission Data 1975-2019 (Version Sept-11-2020).[Zenodo. http://doi.org/10.5281/zenodo.4025316](http://doi.org/10.5281/zenodo.4025316).
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# Journal Papers
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[Hoesly et al, Historical (1750–2014) anthropogenic emissions of reactive gases and aerosols from the Community Emissions Data System (CEDS). ](https://www.geosci-model-dev.net/11/369/2018/gmd-11-369-2018.html)_Geosci. Model Dev._ 11, 369-408, 2018a.
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[Hoesly et al Informing energy consumption uncertainty: an analysis of energy data revisions.”](https://iopscience.iop.org/article/10.1088/1748-9326/aaebc3/meta)_Environ. Res. Lett._ 13 124023, 2018b.
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[Feng et al, The generation of gridded emissions data for CMIP6.](https://gmd.copernicus.org/articles/13/461/2020/)_Geosci. Model Dev._ 13, 461–482, 2020.
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