Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 13, issue 4
Articles | Volume 13, issue 4
https://doi.org/10.5194/amt-13-2057-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-13-2057-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 13, issue 4
Research article
 | 
22 Apr 2020
Research article |  | 22 Apr 2020

Eddy covariance flux measurements of gaseous elemental mercury over a grassland

Stefan Osterwalder, Werner Eugster, Iris Feigenwinter, and Martin Jiskra

Data sets

Dataset of eddy covariance flux measurements of gaseous elemental mercury over a grassland S. Osterwalder, W. Eugster, I. Feigenwinter and M. Jiskra https://doi.org/10.3929/ethz-b-000393131

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Short summary
Direct mercury (Hg) flux studies are crucial to improve our understanding of terrestrial Hg cycling and human Hg exposure. We tested a new system to measure Hg fluxes using the eddy covariance technique. Our Eddy Mercury system revealed a net Hg re-emission flux from a grassland. We concluded that the prevailing dry conditions resulted in low uptake of CO2 and Hg. Eddy Mercury has the potential to address some of the largest uncertainties in global Hg cycling through long-term flux measurements.
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