Articles | Volume 14, issue 7
https://doi.org/10.5194/amt-14-5071-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-14-5071-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Jul 2021
Research article |
| 28 Jul 2021
| 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
Climate Research Programme, Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland
Toprak Aslan
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Andreas Ibrom
Dept. of Environmental Engineering, Technical University of Denmark (DTU), Lyngby, Denmark
Eiko Nemitz
Edinburgh Research Station, UK Centre for Ecology and Hydrology (UKCEH), Bush Estate, Penicuik EH26 0QB, UK
Üllar Rannik
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Ivan Mammarella
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
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Cited
13 citations as recorded by crossref.
- Deviations in evapotranspiration measurements between enclosed- and open-path eddy covariance systems M. Kang et al. 10.1080/02626667.2025.2463619
- Optimal Frequency-Response Corrections for Eddy Covariance Flux Measurements Using the Wiener Deconvolution Method A. Emad 10.1007/s10546-023-00799-w
- Eddy-covariance fluxes of CO2, CH4 and N2O in a drained peatland forest after clear-cutting O. Tikkasalo et al. 10.5194/bg-22-1277-2025
- Quality evaluation for measurements of wind field and turbulent fluxes from a UAV-based eddy covariance system Y. Sun et al. 10.5194/amt-16-5659-2023
- GHG balance, its seasonality and response to soil type and management of northern agricultural grasslands: Eddy-covariance flux measurements from three adjacent fields in Finland N. Shurpali et al. 10.1016/j.agee.2025.109841
- Energy balance closure at FLUXNET sites revisited M. Mauder et al. 10.1016/j.agrformet.2024.110235
- Open-path anti-pollution multi-pass cell-based TDLAS sensor for the online measurement of atmospheric H2O and CO2 fluxes M. Gu et al. 10.1364/OE.474070
- Latent and sensible heat fluxes in a very unstable atmospheric surface layer and weak-wind conditions in a tropical coastal ocean H. Almdhun et al. 10.1016/j.aosl.2025.100617
- The high-frequency response correction of eddy covariance fluxes – Part 2: An experimental approach for analysing noisy measurements of small fluxes T. Aslan et al. 10.5194/amt-14-5089-2021
- Atmospheric Turbulent Intermittency Over the Arctic Sea‐Ice Surface During the MOSAiC Expedition C. Liu et al. 10.1029/2023JD038639
- Eddy covariance with slow-response greenhouse gas analysers on tall towers: bridging atmospheric and ecosystem greenhouse gas networks P. Herig Coimbra et al. 10.5194/amt-17-6625-2024
- The high-frequency response correction of eddy covariance fluxes – Part 2: An experimental approach for analysing noisy measurements of small fluxes T. Aslan et al. 10.5194/amt-14-5089-2021
- The high-frequency response correction of eddy covariance fluxes – Part 1: An experimental approach and its interdependence with the time-lag estimation O. Peltola et al. 10.5194/amt-14-5071-2021
11 citations as recorded by crossref.
- Deviations in evapotranspiration measurements between enclosed- and open-path eddy covariance systems M. Kang et al. 10.1080/02626667.2025.2463619
- Optimal Frequency-Response Corrections for Eddy Covariance Flux Measurements Using the Wiener Deconvolution Method A. Emad 10.1007/s10546-023-00799-w
- Eddy-covariance fluxes of CO2, CH4 and N2O in a drained peatland forest after clear-cutting O. Tikkasalo et al. 10.5194/bg-22-1277-2025
- Quality evaluation for measurements of wind field and turbulent fluxes from a UAV-based eddy covariance system Y. Sun et al. 10.5194/amt-16-5659-2023
- GHG balance, its seasonality and response to soil type and management of northern agricultural grasslands: Eddy-covariance flux measurements from three adjacent fields in Finland N. Shurpali et al. 10.1016/j.agee.2025.109841
- Energy balance closure at FLUXNET sites revisited M. Mauder et al. 10.1016/j.agrformet.2024.110235
- Open-path anti-pollution multi-pass cell-based TDLAS sensor for the online measurement of atmospheric H2O and CO2 fluxes M. Gu et al. 10.1364/OE.474070
- Latent and sensible heat fluxes in a very unstable atmospheric surface layer and weak-wind conditions in a tropical coastal ocean H. Almdhun et al. 10.1016/j.aosl.2025.100617
- The high-frequency response correction of eddy covariance fluxes – Part 2: An experimental approach for analysing noisy measurements of small fluxes T. Aslan et al. 10.5194/amt-14-5089-2021
- Atmospheric Turbulent Intermittency Over the Arctic Sea‐Ice Surface During the MOSAiC Expedition C. Liu et al. 10.1029/2023JD038639
- Eddy covariance with slow-response greenhouse gas analysers on tall towers: bridging atmospheric and ecosystem greenhouse gas networks P. Herig Coimbra et al. 10.5194/amt-17-6625-2024
2 citations as recorded by crossref.
- The high-frequency response correction of eddy covariance fluxes – Part 2: An experimental approach for analysing noisy measurements of small fluxes T. Aslan et al. 10.5194/amt-14-5089-2021
- The high-frequency response correction of eddy covariance fluxes – Part 1: An experimental approach and its interdependence with the time-lag estimation O. Peltola et al. 10.5194/amt-14-5071-2021
Latest update: 28 Aug 2025
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.
Gas fluxes measured by the eddy covariance (EC) technique are subject to filtering due to...
