Numerical simulation and evaluation of global ultrafine particle concentrations at the Earth's surface

Kohl, Matthias; Lelieveld, Jos; Chowdhury, Sourangsu; Ehrhart, Sebastian; Sharma, Disha; Cheng, Yafang; Tripathi, Sachchida Nand; Sebastian, Mathew; Pandithurai, Govindan; Wang, Hongli; Pozzer, Andrea

doi:https://doi.org/10.5194/acp-23-13191-2023

Articles | Volume 23, issue 20

https://doi.org/10.5194/acp-23-13191-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

https://doi.org/10.5194/acp-23-13191-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 20

Research article

|

19 Oct 2023

Research article |

| 19 Oct 2023

Numerical simulation and evaluation of global ultrafine particle concentrations at the Earth's surface

Matthias Kohl, Jos Lelieveld, Sourangsu Chowdhury, Sebastian Ehrhart, Disha Sharma, Yafang Cheng, Sachchida Nand Tripathi, Mathew Sebastian, Govindan Pandithurai, Hongli Wang, and Andrea Pozzer

Data sets

Simulated global ultrafine particle (UFP) concentrations M. Kohl and A. Pozzer https://doi.org/10.17617/3.7945XI

CEDS_GBD-MAPS: Global Anthropogenic Emission Inventory of NOx, SO2, CO, NH3, NMVOCs, BC, and OC from 1970-2017 E. McDuffie, S. Smith, P. O'Rourke, K. Tibrewal, C. Venkataraman, E. Marais, B. Zheng, M. Crippa, M. Brauer, and R. Martin https://doi.org/10.5281/zenodo.3754964

EDGAR v6.1 global air pollutant emissions M. Crippa, D. Guizzardi, M. Muntean, E. Schaaf, F. Monforti-Ferrario, M. Banja, F. Pagani, and E. Solazzo https://edgar.jrc.ec.europa.eu/index.php/dataset_ap61

Gridded Population of the World, Version 4 (GPWv4): Population Density Adjusted to Match 2015 Revision UN WPP Country Totals CIESIN (Center for International Earth Science Information Network) https://doi.org/10.7927/H4F47M65

ATom: L2 In Situ Measurements of Aerosol Microphysical Properties (AMP) C. Brock, A. Kupc, C. Williamson, K. Froyd, F. Erdesz, D. Murphy, G. Schill, D. Gesler, R. MCLaughlin, M. Richardson, N. Wagner, and J. Wilson https://doi.org/10.3334/ORNLDAAC/1671

Global particle number emissions P. Paasonen https://previous.iiasa.ac.at/web/home/research/researchPrograms/air/PN.html

Model code and software

Scientific colour maps F. Crameri https://doi.org/10.5281/zenodo.5501399

Short summary

Knowledge on atmospheric ultrafine particles (UFPs) with a diameter smaller than 100 nm is crucial for public health and the hydrological cycle. We present a new global dataset of UFP concentrations at the Earth's surface derived with a comprehensive chemistry–climate model and evaluated with ground-based observations. The evaluation results are combined with high-resolution primary emissions to downscale UFP concentrations to an unprecedented horizontal resolution of 0.1° × 0.1°.