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The HTAP_v3 emission mosaic: merging regional and global monthly emissions (2000–2018) to support air quality modelling and policies

Journal Article · · Earth System Science Data (Online)
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  1. European Commission, Ispra (Italy). Joint Research Centre
  2. Helmholtz Centre Potsdam (RIFS Potsdam) (Germany)
  3. US Environmental Protection Agency (EPA), Washington, DC (United States)
  4. Environment and Climate Change Canada (ECCC), Toronto (Canada)
  5. National Research Institute, Warsaw (Poland)
  6. TNO, Utrecht (Netherlands)
  7. Asia Center for Air Pollution Research (ACAP), Niigata (Japan)
  8. National Institute for Environmental Studies (NIES), Tsukuba (Japan)
  9. Japan Automobile Research Institute (JARI), Tsukuba (Japan)
  10. US Environmental Protection Agency (EPA), Research Triangle Park, NC (United States)
  11. Environment and Climate Change Canada (ECCC), Dorval (Canada)
  12. International Institute for Applied Systems Analysis (IIASA), Laxenburg (Austria)
  13. Pacific Northwest National Laboratory (PNNL), College Park, MD (United States)
  14. UniSystems Company, Milan (Italy)
  15. GFT Italia S.r.l., Milan (Italy)
  16. Konuk University, Seoul (Korea, Republic of)
+ Show Author Affiliations
This study, performed under the umbrella of the Task Force on Hemispheric Transport of Air Pollution (TF-HTAP), responds to the global and regional atmospheric modelling community's need of a mosaic emission inventory of air pollutants that conforms to specific requirements: global coverage, long time series, spatially distributed emissions with high time resolution, and a high sectoral resolution. The mosaic approach of integrating official regional emission inventories based on locally reported data, with a global inventory based on a globally consistent methodology, allows modellers to perform simulations of high scientific quality while also ensuring that the results remain relevant to policymakers. HTAP_v3, an ad hoc global mosaic of anthropogenic inventories, has been developed by integrating official inventories over specific areas (North America, Europe, Asia including Japan and South Korea) with the independent Emissions Database for Global Atmospheric Research (EDGAR) inventory for the remaining world regions. The results are spatially and temporally distributed emissions of SO2, NO$$x$$, CO, non-methane volatile organic compounds (NMVOCs), NH3, PM10, PM2.5, black carbon (BC), and organic carbon (OC), with a spatial resolution of 0.1º × 0.1º and time intervals of months and years, covering the period 2000–2018. The emissions are further disaggregated into 16 anthropogenic emitting sectors. This paper describes the methodology applied to develop such an emission mosaic, reports on source allocation, differences among existing inventories, and best practices for the mosaic compilation. One of the key strengths of the HTAP_v3 emission mosaic is its temporal coverage, enabling the analysis of emission trends over the past 2 decades. The development of a global emission mosaic over such long time series represents a unique product for global air quality modelling and for better-informed policymaking, reflecting the community effort expended by the TF-HTAP to disentangle the complexity of transboundary transport of air pollution.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
Environment Research and Technology Development Fund (ERTDF); Japan Society for the Promotion of Science (JSPS); National Research Foundation of Korea (NRF); USDOE
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2000038
Report Number(s):
PNNL-SA--182701
Journal Information:
Earth System Science Data (Online), Journal Name: Earth System Science Data (Online) Journal Issue: 6 Vol. 15; ISSN 1866-3516
Publisher:
Copernicus PublicationsCopyright Statement
Country of Publication:
United States
Language:
English

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