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.

HTAP_v3镶嵌数据集（HTAP_v3 mosaic）是在联合国欧洲经济委员会（UNECE）《远程越境空气污染公约》（UNECE Convention on Long-range Transboundary Air Pollution，链接：https://unece.org/page404/env-lrtap）框架下开发的社群协作项目，旨在提升学界对北半球洲际大气污染传输过程的科学认知（项目官方站点：http://htap.org/）。该数据集包含一套全球0.1°×0.1°分辨率的逐月大气污染物排放格网地图（air pollutant emission gridmaps），覆盖2000-2018年时间序列，涵盖除土地利用、土地利用变化和林业（Land Use, Land Use Change and Forestry，LULUCF）之外的全部人为排放部门。其排放格网地图数据均源自官方公开统计：欧洲区域采用欧洲监测和评估计划（EMEP）的CAMS-REG-v5.1数据集，美国采用美国环境保护署（US EPA）公开数据，加拿大采用环境与气候变化加拿大（ECCC）数据，亚洲绝大多数区域采用REAS数据集，日本采用本国官方统计数据，韩国采用CAPPS-KU数据集；全球其余国家则使用EDGARv6.1大气污染物排放格网数据集。此外，当部分排放部门、污染物类型及对应年份存在数据缺失时，将通过EDGAR数据集进行补全以填补数据空白。