Articles | Volume 21, issue 22
Atmos. Chem. Phys., 21, 16817–16826, 2021
https://doi.org/10.5194/acp-21-16817-2021
Atmos. Chem. Phys., 21, 16817–16826, 2021
https://doi.org/10.5194/acp-21-16817-2021

Research article 19 Nov 2021

Research article | 19 Nov 2021

Reduced ice number concentrations in contrails from low-aromatic biofuel blends

Tiziana Bräuer et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-582', Andrew Heymsfield, 16 Aug 2021
    • AC1: 'Reply on RC1', Tiziana Bräuer, 01 Sep 2021
  • RC2: 'Comment on acp-2021-582', Anonymous Referee #2, 14 Sep 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Tiziana Bräuer on behalf of the Authors (11 Oct 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (14 Oct 2021) by Allan Bertram
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Short summary
Over half of aviation climate impact is caused by contrails. Biofuels can reduce the ice crystal numbers in contrails and mitigate the climate impact. The experiment ECLIF II/NDMAX in 2018 assessed the effects of biofuels on contrails and aviation emissions. The NASA DC-8 aircraft performed measurements inside the contrail of the DLR A320. One reference fuel and two blends of the biofuel HEFA and kerosene are analysed. We find a max reduction of contrail ice numbers through biofuel use of 40 %.
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