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GI | Articles | Volume 9, issue 1
Geosci. Instrum. Method. Data Syst., 9, 239–254, 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Geosci. Instrum. Method. Data Syst., 9, 239–254, 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 29 May 2020

Research article | 29 May 2020

Soil CO2 efflux errors are lognormally distributed – implications and guidance

Thomas Wutzler et al.

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Cited articles

Barba, J., Cueva, A., Bahn, M., Barron-Gafford, G. A., Bond-Lamberty, B., Hanson, P. J., Jaimes, A., Kulmala, L., Pumpanen, J., Scott, R. L., Wohlfahrt, G., and Vargas, R.: Comparing ecosystem and soil respiration: Review and key challenges of tower-based and soil measurements, Agr. Forest Meteorol., 249, 434–443,, 2018. a
Bayley, G. and Hammersley, J.: The “effective” number of independent observations in an autocorrelated time series, Supplement, J. Roy. Stat. Soc., 8, 184–197, 1946. a
Christensen, S., Ambus, P., Arah, J., Clayton, H., Galle, B., Griffith, D., Hargreaves, K., Klenzedtsson, L., Lind, A.-M., Maag, M., Scott, A., Skiba, U., Smith, K., Welling, M., and Wienhold, F.: Nitrous oxide emission from an agricultural field: Comparison between measurements by flux chamber and micrometerological techniques, Atmos. Environ., 30, 4183–4190,, 1996. a
Cobb, B. R., Rumi, R., and Salmerón, A.: Approximating the distribution of a sum of log-normal random variables, Stat. Comput., 16, 293–308, 2012. a
Cueva, A., Bahn, M., Litvak, M., Pumpanen, J., and Vargas, R.: A multisite analysis of temporal random errors in soil CO2 efflux, J. Geophys. Res.-Biogeo., 120, 737–751,, 2015. a
Publications Copernicus
Short summary
Continuous data of soil CO2 efflux can improve model prediction of climate warming, and automated data are becoming increasingly available. However, aggregating chamber-based data to plot scale pose challenges. Therefore, we showed, using 1 year of half-hourly data, how using the lognormal assumption tackles several challenges. We propose that plot-scale SO2 efflux observations should be reported together with lognormally based uncertainties and enter model constraining frameworks at log scale.
Continuous data of soil CO2 efflux can improve model prediction of climate warming, and...