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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Saved (final revised paper)

Latest update: 22 May 2024
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.
Final-revised paper