A Community Emissions Data System (CEDS) for Historical Emissions

Historical emission estimates for anthropogenic aerosol and precursor compounds are key data needed for Earth system, climate and atmospheric chemistry and transport models, and integrated assessment models. Historical emissions data are used both for general analysis and assessment and also for model validation through comparisons with observations.

Project Goals

The CEDS project is building a data-driven, open source framework that will produce annually updated emission estimates for research and analysis. A project description is available here: CEDS Project White Paper.

The data system will produce emission estimates by country, sector, and fuel with the following characteristics:

  • Annual estimates of anthropogenic emissions (not including open burning) to latest full calendar year over the entire industrial era. Readily updated every year.
  • Emission species: aerosol (BC, OC) and aerosol precursor and reactive compounds (SO2, NOx, NH3, CH4, CO, NMVOC) and CO2 (as reference)
  • State/province spatial detail for large countries
  • Uncertainty estimated at the same level (country, fuel, sector)
  • Seasonal cycle (monthly) and aggregate NMVOCs by sector/sub-sector
  • Gridded emissions (0.1°) w/ sub-national resolution for large countries

Project Status

  • Historical emissions dataset for use in the Coupled Model Inter-comparison Project Phase 6 (CMIP6) has been released through the Earth System Grid Federation. More details, including data access information and supplemental information is available at the CEDS CMIP6 pageSee this page for an important update: users of the gridded emissions should update to the May 2016 version.
  • A Journal Article describing this data is now available for comment in the CMIP6 special issue of Geoscientific Model Development.
  • We are working toward a summer 2017 release of the full data system for community use.
  • We will be presenting at the August 2017 International Emissions Inventory Conference in Baltimore and the September 2017 GEIA Meeting Hamburg, Germany.

Community Input

The project will solicit community input, contributions, and feedback as the project proceeds.

To receive updates on project progress and notice of opportunities for participation you can sign up for an information distribution list. (This list will be used only for CEDS-related information and e-mail addresses will not be shared or distributed.) To subscribe to the listserv, please send an email to listserv@listserv.umd.edu with the email body: “subscribe cedsinfo”. You can also go directly to the website for the listserv at: https://listserv.umd.edu/archives/cedsinfo.html. You do not have to be registered to view the archive on the website.

The core CEDS project is funded by the US Department of Energy’s Earth System Modeling program. Sub-regional detail and use of satellite datasets is funded by NASA’s Atmospheric Composition Modeling and Analysis Program (ACMAP).