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.

Data sets

Dataset for "The high frequency response correction of eddy covariance fluxes. Part 1: an experimental approach and its interdependence with the time-lag estimation" Olli Peltola, Toprak Aslan, Andreas Ibrom, Eiko Nemitz, Üllar Rannik, and Ivan Mammarella https://doi.org/10.5281/zenodo.4769420

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.