A dual-inlet, single detector relaxed eddy accumulation system for long-term  measurement of mercury flux

Osterwalder, S.; Fritsche, J.; Alewell, C.; Schmutz, M.; Nilsson, M. B.; Jocher, G.; Sommar, J.; Rinne, J.; Bishop, K.

doi:https://doi.org/10.5194/amt-9-509-2016

Articles | Volume 9, issue 2

https://doi.org/10.5194/amt-9-509-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-509-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 2

Research article

|

15 Feb 2016

Research article |

| 15 Feb 2016

A dual-inlet, single detector relaxed eddy accumulation system for long-term measurement of mercury flux

S. Osterwalder, J. Fritsche, C. Alewell, M. Schmutz, M. B. Nilsson, G. Jocher, J. Sommar, J. Rinne, and K. Bishop

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Final revised paper (published on 15 Feb 2016)
Supplement to the final revised paper
Preprint (discussion started on 05 Aug 2015)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C2443: 'Review of amt-2015-163', Anonymous Referee #1, 06 Aug 2015
- AC C3661: 'Reply to Referee #1', Stefan Osterwalder, 29 Oct 2015
SC C2856: 'Few additional minor comments to amtd-8-8113-2015', Georg Jocher, 07 Sep 2015
- AC C3618: 'Final response to GJ Jocher', Stefan Osterwalder, 27 Oct 2015
RC C2876: 'Comment on "A dual-inlet, single detector relaxed eddy accumulation system for continuous quantification of mercury land-atmosphere gas exchange"', Anonymous Referee #2, 07 Sep 2015
- AC C3670: 'Reply to Referee #2 (in the supplement)', Stefan Osterwalder, 29 Oct 2015
  - AC C3714: 'Comment 13 - suggested changes in the manuscript:', Stefan Osterwalder, 04 Nov 2015

Short summary

Human activities have increased mercury (Hg) cycling between land and atmosphere. To define landscapes as sinks or sources of Hg we have developed an advanced REA system for long-term measurements of gaseous elemental Hg exchange. It was tested in two contrasting environments: above Basel, Switzerland, and a peatland in Sweden. Both landscapes showed net Hg emission (15 and 3 ng m⁻² h⁻¹, respectively). The novel system will help to advance our understanding of Hg exchange on an ecosystem scale.