Mercury vapor air–surface exchange measured by collocated micrometeorological and enclosure methods – Part II: Bias and uncertainty analysis

Zhu, W.; Sommar, J.; Lin, C.-J.; Feng, X.

doi:https://doi.org/10.5194/acp-15-5359-2015

Articles | Volume 15, issue 10

https://doi.org/10.5194/acp-15-5359-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-5359-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 10

Research article

|

18 May 2015

Research article |

| 18 May 2015

Mercury vapor air–surface exchange measured by collocated micrometeorological and enclosure methods – Part II: Bias and uncertainty analysis

W. Zhu, J. Sommar, C.-J. Lin, and X. Feng

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Final revised paper (published on 18 May 2015)
Preprint (discussion started on 18 Feb 2015)

Interactive discussion

Status: closed

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

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- Supplement

RC C761: 'Review of ACPD-15-4627-2015', Anonymous Referee #1, 13 Mar 2015
- AC C1819: 'Response to comments from reviewer 1#', Xinbin Feng, 23 Apr 2015
RC C852: 'Mercury Vapor Air-Surface Exchange Measured by Collocated Micrometeorological and Enclosure Methods – Part II: Bias and Uncertainty Analysis', Anonymous Referee #2, 17 Mar 2015
- AC C1821: 'Response to comments from Reviewer #2', Xinbin Feng, 23 Apr 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Xinbin Feng on behalf of the Authors (23 Apr 2015) Author's response Manuscript

ED: Publish as is (24 Apr 2015) by Leiming Zhang

AR by Xinbin Feng on behalf of the Authors (27 Apr 2015)

Short summary

Bias and uncertainty in Hg flux measured by micrometeorological methods (MM) and dynamic flux chambers (DFCs) are assessed from two field inter-comparison campaigns. DFC flux bias follows a diurnal cycle due to modified temperature and radiation balance inside the chamber. The precision in concentration difference measurements poses critical constraint on obtaining a larger fraction of significant MM flux. Asynchronous sampling impairs flux accuracy under varying atmospheric Hg concentration.