Articles | Volume 24, issue 21
https://doi.org/10.5194/acp-24-12465-2024
https://doi.org/10.5194/acp-24-12465-2024
Research article
 | 
11 Nov 2024
Research article |  | 11 Nov 2024

A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF6 for the period 2005–2021

Martin Vojta, Andreas Plach, Saurabh Annadate, Sunyoung Park, Gawon Lee, Pallav Purohit, Florian Lindl, Xin Lan, Jens Mühle, Rona L. Thompson, and Andreas Stohl

Data sets

Daily-resolved global SF6 mole fraction fields between 2005 and 2021 Martin Vojta https://doi.org/10.25365/phaidra.489

IAGOS-CARIBIC whole air sampler data (v2024.01.12) [Data set] T. Schuck and F. Obersteiner https://doi.org/10.5281/zenodo.10495039

Medusa GC-MS SF6 time series, all stations, years 2005-2021 AGAGE - Advanced Global Atmospheric Gases Experiment https://agage2.eas.gatech.edu/data_archive/agage/gc-ms-medusa/

Measured sulfur hexafluoride mole fractions at the Zeppelin mountain (Ny-Ålesund) station [data-set] (2005-2010) EBAS https://ebas-data.nilu.no/Pages/DataSetList.aspx?key=4548F59E3CBD48E0A505E8968BD268EB

Global Atmospheric Sulfur hexaflouride Dry Air Mole Fractions from the NOAA GML Halocarbons in situ Network, 1998-2023, Version 2023-04-13 G. Dutton and B. Hall https://doi.org/10.7289/V5X0659V

All SF6 data contributed to WDCGG by GAW stations and mobiles by 2022-09-05 A. di Sarra et al. https://doi.org/10.50849/WDCGG_SF6_ALL_2022

Atmospheric Sulfur Hexafluoride Dry Air Mole Fractions from the NOAA GML Carbon Cycle Cooperative Global Air Sampling Network, 1997-2022, Version 2023-08-28 X. Lan et al. https://doi.org/10.15138/p646-pa37

NOAA Global Greenhouse Gas Reference Network Flask-Air PFP Sample Measurements of SF6 at Tall Tower and other Continental Sites, 2005-Present [Data set], Version 2022-11-01 A. Andrews et al. https://doi.org/10.15138/5R14-K382

NOAA Global Greenhouse Gas Reference Network Flask-Air PFP Sample Measurements of CO2, CH4, CO, N2O, H2, SF6 and isotopic ratios collected from aircraft vertical profiles [Data set], Version 2022-12-01 K. McKain et al. https://doi.org/10.15138/39HR-9N34

Multi-laboratory compilation of atmospheric sulfure hexafluoride data for the period 1983-2017, obspack_sf6_1_v2.1.1_2018-08-17 NOAA Carbon Cycle Group ObsPack Team https://doi.org/10.15138/g3ks7p

HATS Airborne Projects J. W. Elkins et al. https://gml.noaa.gov/hats/airborne/

Deriving Emissions related to Climate Change Network: CO2, CH4, N2O, SF6 and CO measurements from Heathfield Tall Tower, East Sussex T. Arnold et al. https://catalogue.ceda.ac.uk/uuid/df502fe4715c4177ab5e4e367a99316b

Deriving Emissions related to Climate Change Network: CO2, CH4, N2O, SF6 and CO measurements from Bilsdale Tall Tower, North York Moors National Park S. O'Doherty et al. https://catalogue.ceda.ac.uk/uuid/d2090552c8fe4c16a2fd7d616adc2d9f

Model code and software

FLEXPART 8-CTM-1.1: Atmospheric Lagrangian Particle Dispersion Model for global tracer transport S. Henne et al. https://doi.org/10.5281/zenodo.1249190

FLEXPART 10.4. In Geosci. Model Dev. Discuss. (10.4) Ignacio Pisso et al. https://doi.org/10.5281/zenodo.3542278

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Short summary
We constrain the global emissions of the very potent greenhouse gas sulfur hexafluoride (SF6) between 2005 and 2021. We show that SF6 emissions are decreasing in the USA and in the EU, while they are substantially growing in China, leading overall to an increasing global emission trend. The national reports for the USA, EU, and China all underestimated their SF6 emissions. However, stringent mitigation measures can successfully reduce SF6 emissions, as can be seen in the EU emission trend.
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