Historical (1750–2014) anthropogenic emissions of reactive gases and aerosols from the Community Emissions Data System (CEDS)

Abstract

Abstract. We present a new data set of annual historical anthropogenic chemically reactive gases (CO, CH 4 , NH 3 , NO x , SO 2 , NMVOCs), carbonaceous aerosols (black carbon -BC, and organic carbon -OC), and CO 2 developed with the Community Emissions Data System (CEDS). We improve upon existing inventories with a more consistent and reproducible methodology applied to all emission species, updated emission factors, and recent estimates through 2014. The data system relies on existing energy consumption data sets and regional and country-specific inventories to produce trends over recent decades. All emission species are consistently estimated using the same activity data over all time periods. Emissions are provided on an annual basis at the level of country and sector and gridded with monthly seasonality. These estimates are comparable to, but generally slightly higher than, existing global inventories. Emissions over the most recent years are more uncertain, particularly in low-and middle-income regions where country-specific emission inventories are less available. Future work will involve refining and updating these emission estimates, estimating emissions' uncertainty, and publication of the system as open-source software.

Exploring the relationship between surface PM<sub>2.5</sub> and meteorology in Northern India

“…The first simulation, denoted as AM4-CMIP5, is driven by emissions developed in support of the CMIP5 (Lamarque et al, 2010) and is extended from 2000 to 2016 following the Representative Concentration Pathway 8.5 (RCP8.5; van Vuuren et al, 2011). The second simulation, referred to as AM4-CMIP6, is driven by emissions developed for the upcoming CMIP6 (Hoesly et al, 2018;van Marle et al, 2017) The spatial patterns (1 • × 1 • ) of the CMIP6 total anthropogenic extended wintertime (October-March 2015-2016) emissions (Gg) of BC, OM, NO, SO 2 , and NH 3 used over India in the AM4-CMIP6 simulation are shown in Fig. 1ae, respectively.…”

“…With model simulations for the upcoming Coupled Aerosol Chemistry Model Intercomparison Project (AerChemMIP) endorsed by the Coupled Model Intercomparison Project Phase 6 (CMIP6) in support of the sixth IPCC assessment report (AR6) presently beginning, a standing question is whether the newly updated emissions will remedy these frequently found low biases. For this analysis, we use two different emission datasets, those developed for the CMIP5 (Lamarque et al, 2010) and the CMIP6 (Hoesly et al, 2018;van Marle et al, 2017) to test their impact on modeled PM 2.5 . We also assess the model's ability to reproduce the observed relationships between site level PM 2.5 abundances and meteorology.…”

AerChemMIP: quantifying the effects of chemistry and aerosols in CMIP6

“…The emissions of anthropogenic aerosols and reactive species are provided by Hoesly et al (2017) (http:// www.globalchange.umd.edu/ceds/ceds-cmip6-data/). Models should use their own schemes for natural emissions.…”

Comparison and evaluation of anthropogenic emissions of SO<sub>2</sub> and NO<sub><i>x</i></sub> over China

“…Through the comparison between bottom-up emission inventories and evaluation with top-down information, we identified potential directions for further improvement in inventory development. last decade Hoesly et al, 2018). To support chemical transport modeling and provide scientific basis for policy-making, several emission inventories covering China have been developed (Streets et al, 2003;Ohara et al, 2007;Zhang et al, 2007Zhang et al, , 2009Lu et al, 2010Lu et al, , 2011Kurokawa et al, 2013;Klimont et al, 2009Klimont et al, , 2013Wang et al, 2014;EDGAR v4.2, available at http: //edgar.jrc.ec.europa.eu).…”