Articles | Volume 11, issue 10
Atmos. Meas. Tech., 11, 5421–5438, 2018
https://doi.org/10.5194/amt-11-5421-2018
Atmos. Meas. Tech., 11, 5421–5438, 2018
https://doi.org/10.5194/amt-11-5421-2018

Research article 02 Oct 2018

Research article | 02 Oct 2018

Uncertainty of eddy covariance flux measurements over an urban area based on two towers

Leena Järvi et al.

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Latest update: 04 Dec 2021
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Short summary
Identical EC systems on two sides of a building in central Helsinki were used to assess the uncertainty of the vertical fluxes on the single measurement point from July 2013 to September 2015. Sampling at only one point yielded up to 12% underestimation in the cumulative carbon fluxes; for sensible and latent heat the respective values were up to 5 and 8%. The commonly used statistics, kurtosis and skewness, are not necessarily suitable for filtering out data in a densely built urban area.