Articles | Volume 10, issue 1
https://doi.org/10.5194/amt-10-109-2017
https://doi.org/10.5194/amt-10-109-2017
Research article
 | 
06 Jan 2017
Research article |  | 06 Jan 2017

A simple calculation algorithm to separate high-resolution CH4 flux measurements into ebullition- and diffusion-derived components

Mathias Hoffmann, Maximilian Schulz-Hanke, Juana Garcia Alba, Nicole Jurisch, Ulrike Hagemann, Torsten Sachs, Michael Sommer, and Jürgen Augustin

Related authors

Technical note: A low-cost, automatic soil–plant–atmosphere enclosure system to investigate CO2 and evapotranspiration flux dynamics
Wael Al Hamwi, Maren Dubbert, Jörg Schaller, Matthias Lück, Marten Schmidt, and Mathias Hoffmann
Biogeosciences, 21, 5639–5651, https://doi.org/10.5194/bg-21-5639-2024,https://doi.org/10.5194/bg-21-5639-2024, 2024
Short summary
An easy-to-use water vapor sampling approach for stable isotope analysis using affordable membrane valve multi-foil bags
Adrian Dahlmann, John D. Marshall, David Dubbert, Mathias Hoffmann, and Maren Dubbert
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2024-43,https://doi.org/10.5194/amt-2024-43, 2024
Revised manuscript accepted for AMT
Short summary
Validation and field application of a low-cost device to measure CO2 and evapotranspiration (ET) fluxes
Reena Macagga, Michael Asante, Geoffroy Sossa, Danica Antonijević, Maren Dubbert, and Mathias Hoffmann
Atmos. Meas. Tech., 17, 1317–1332, https://doi.org/10.5194/amt-17-1317-2024,https://doi.org/10.5194/amt-17-1317-2024, 2024
Short summary
Benefits of a robotic chamber system for determining evapotranspiration in an erosion-affected, heterogeneous cropland
Adrian Dahlmann, Mathias Hoffmann, Gernot Verch, Marten Schmidt, Michael Sommer, Jürgen Augustin, and Maren Dubbert
Hydrol. Earth Syst. Sci., 27, 3851–3873, https://doi.org/10.5194/hess-27-3851-2023,https://doi.org/10.5194/hess-27-3851-2023, 2023
Short summary
Detecting small-scale spatial heterogeneity and temporal dynamics of soil organic carbon (SOC) stocks: a comparison between automatic chamber-derived C budgets and repeated soil inventories
Mathias Hoffmann, Nicole Jurisch, Juana Garcia Alba, Elisa Albiac Borraz, Marten Schmidt, Vytas Huth, Helmut Rogasik, Helene Rieckh, Gernot Verch, Michael Sommer, and Jürgen Augustin
Biogeosciences, 14, 1003–1019, https://doi.org/10.5194/bg-14-1003-2017,https://doi.org/10.5194/bg-14-1003-2017, 2017
Short summary

Related subject area

Subject: Gases | Technique: In Situ Measurement | Topic: Data Processing and Information Retrieval
Gridded surface O3, NOx, and CO abundances for model metrics from the South Korean ground station network
Calum P. Wilson and Michael J. Prather
Atmos. Meas. Tech., 18, 1757–1769, https://doi.org/10.5194/amt-18-1757-2025,https://doi.org/10.5194/amt-18-1757-2025, 2025
Short summary
Revised methodology for CO2 and CH4 measurements at remote sites using a working standard-gas-saving system
Motoki Sasakawa, Noritsugu Tsuda, Toshinobu Machida, Mikhail Arshinov, Denis Davydov, Aleksandr Fofonov, and Boris Belan
Atmos. Meas. Tech., 18, 1717–1730, https://doi.org/10.5194/amt-18-1717-2025,https://doi.org/10.5194/amt-18-1717-2025, 2025
Short summary
Digitization and calibration of historical solar absorption infrared spectra from the Jungfraujoch site
Jamal Makkor, Mathias Palm, Matthias Buschmann, Emmanuel Mahieu, Martyn P. Chipperfield, and Justus Notholt
Atmos. Meas. Tech., 18, 1105–1114, https://doi.org/10.5194/amt-18-1105-2025,https://doi.org/10.5194/amt-18-1105-2025, 2025
Short summary
Direct high-precision radon quantification for interpreting high-frequency greenhouse gas measurements
Dafina Kikaj, Edward Chung, Alan D. Griffiths, Scott D. Chambers, Grant Forster, Angelina Wenger, Penelope Pickers, Chris Rennick, Simon O'Doherty, Joseph Pitt, Kieran Stanley, Dickon Young, Leigh S. Fleming, Karina Adcock, Emmal Safi, and Tim Arnold
Atmos. Meas. Tech., 18, 151–175, https://doi.org/10.5194/amt-18-151-2025,https://doi.org/10.5194/amt-18-151-2025, 2025
Short summary
Resolving the contributions of local emissions to measured concentrations: a method comparison
Taylor D. Edwards, Yee Ka Wong, Cheol-Jeon Heong, Jonathan M. Wang, Yushan Su, and Greg J. Evans
EGUsphere, https://doi.org/10.5194/egusphere-2024-2488,https://doi.org/10.5194/egusphere-2024-2488, 2024
Short summary

Cited articles

Bastviken, D., Cole, J. J., Pace, M. L., and Tranvik, L. J.: Methane emissions from lakes: Dependence of lake characteristics, two regional assessments, and a global estimate, Global Biogeochem. Cy., 18, GB4009, https://doi.org/10.1029/2004GB002238, 2004.
Bastviken, D., Santoro, A. L., Marotta, H., Queiroz Pinho, L., Fernandes Calheiros, D., Crill, P., and Enrich-Prast, E.: Methane Emissions from Pantanal, South America, during the low water season: towards more comprehensive sampling, Environ. Sci. Technol., 44, 5450–5455, 2010.
Bastviken, D., Tranvik, L. J., Downing, J. A., Crill, P. M., and Enrich-Prast, A.: Freshwater methane emissions offset the continental carbon sink, Science, 331, 50, https://doi.org/10.1126/science.1196808, 2011.
Chanton, J. P. and Whiting, G. J.: Trace gas exchange in freshwater and coastel marine environments: ebullition and transport by plants, in: Biogenic trace gases: measuring emissions from soil and water, chap. 4, edited by: Matson, P. A. and Hariss, R. C., Blackwell Science Ltd., UK, 98–125, 1995.
Christensen, T. R., Ekberg, A., Ström, L., Mastepanov, M., and Panikov, N.: Factors controlling large scale variations in methane emissions from wetlands, Geophys. Res. Lett., 30, 1414, https://doi.org/10.1029/2002GL016848, 2005.
Download
Short summary
Processes driving production and transport of CH4 in wetlands are complex. We present an algorithm to separate open-water automatic chamber CH4 fluxes into diffusion and ebullition. This helps to reveal dynamics, identify drivers and obtain reliable CH4 emissions. The algorithm is based on sudden concentration changes during single measurements. A variable filter is applied using a multiple of the interquartile range. The algorithm was verified for data of a rewetted former fen grassland site.
Share