HTAPv3 mosaic: an emission inventory in support to Hemisperic Transport of Air Pollution

The HTAP_v3 mosaic has been developed in the context of the UNECE Air Convention (UNECE Convention on Long-range Transboundary Air Pollution, link: https://unece.org/page404/env-lrtap) as a community effort to improve the scientific knowledge of the intercontinental transport of air pollution over the Northern Hemisphere (http://htap.org/). It consists of a global mosaic of monthly air pollutant (SO2, NOx, CO, NMVOCs, NH3, PM10, PM2.5, BC, OC) emission gridmaps at 0.1x0.1 degree resolution covering the time series 2000-2018 and all anthropogenic emission sectors, with the exception of Land Use, Land Use Change and Forestry. Emission gridmaps have been collected from officially reported data, and specifically from EMEP for Europe (CAMS-REG-v5.1), from the US Environmental Protection Agency (US EPA), Environment and Climate Change Canada (ECCC), REAS for most of the Asian domain, from Japan and CAPPS-KU for Korea. All remaining countries in the world have been covered using EDGARv6.1 air pollutant emission gridmaps. Furthermore, the EDGAR data have been used to complement the officially reported data as gapfilling source in case of missing data for certain sectors, pollutants and years.