Articles | Volume 21, issue 23
Research article
07 Dec 2021
Research article |  | 07 Dec 2021

Limitations of the radon tracer method (RTM) to estimate regional greenhouse gas (GHG) emissions – a case study for methane in Heidelberg

Ingeborg Levin, Ute Karstens, Samuel Hammer, Julian DellaColetta, Fabian Maier, and Maksym Gachkivskyi


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-661', Alastair Williams, 23 Sep 2021
  • RC2: 'Comment on acp-2021-661', Claudia Grossi, 27 Sep 2021
    • RC3: 'corrigendum to the report of R2', Claudia Grossi, 30 Sep 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Ingeborg Levin on behalf of the Authors (26 Oct 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (27 Oct 2021) by Heini Wernli
RR by Claudia Grossi (27 Oct 2021)
RR by Alastair Williams (28 Oct 2021)
ED: Publish as is (28 Oct 2021) by Heini Wernli
Short summary
The radon tracer method is applied to atmospheric methane and radon observations from the upper Rhine valley to independently estimate methane emissions from the region. Comparison of our top-down results with bottom-up inventory data requires high-resolution footprint modelling and representative radon flux data. In agreement with inventories, observed emissions decreased, but only until 2005. A limitation of this method is that point-source emissions are not captured or not fully captured.
Final-revised paper