Articles | Volume 14, issue 7
Atmos. Meas. Tech., 14, 5071–5088, 2021
https://doi.org/10.5194/amt-14-5071-2021
Atmos. Meas. Tech., 14, 5071–5088, 2021
https://doi.org/10.5194/amt-14-5071-2021

Research article 28 Jul 2021

Research article | 28 Jul 2021

The high-frequency response correction of eddy covariance fluxes – Part 1: An experimental approach and its interdependence with the time-lag estimation

Olli Peltola 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 amt-2020-479', Marc Aubinet, 15 Jan 2021
    • AC1: 'Reply on RC1', Olli Peltola, 09 Apr 2021
  • RC2: 'Comment on amt-2020-479', Johannes Laubach, 08 Feb 2021
    • AC2: 'Reply on RC2', Olli Peltola, 09 Apr 2021
  • RC3: 'Comment on amt-2020-479', Anonymous Referee #3, 15 Feb 2021
    • AC3: 'Reply on RC3', Olli Peltola, 09 Apr 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Olli Peltola on behalf of the Authors (09 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (15 Apr 2021) by Glenn Wolfe
RR by Johannes Laubach (11 May 2021)
ED: Publish subject to minor revisions (review by editor) (11 May 2021) by Glenn Wolfe
AR by Olli Peltola on behalf of the Authors (20 May 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (20 May 2021) by Glenn Wolfe
Short summary
Gas fluxes measured by the eddy covariance (EC) technique are subject to filtering due to non-ideal instrumentation. For linear first-order systems this filtering causes also a time lag between vertical wind speed and gas signal which is additional to the gas travel time in the sampling line. The effect of this additional time lag on EC fluxes is ignored in current EC data processing routines. Here we show that this oversight biases EC fluxes and hence propose an approach to rectify this bias.