Articles | Volume 12, issue 11
https://doi.org/10.5194/amt-12-6059-2019
https://doi.org/10.5194/amt-12-6059-2019
Research article
 | 
21 Nov 2019
Research article |  | 21 Nov 2019

Measurements and quality control of ammonia eddy covariance fluxes: a new strategy for high-frequency attenuation correction

Alexander Moravek, Saumya Singh, Elizabeth Pattey, Luc Pelletier, and Jennifer G. Murphy

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Cited articles

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Ellis, R. a., Murphy, J. G., Pattey, E., van Haarlem, R., O'Brien, J. M., and Herndon, S. C.: Characterizing a Quantum Cascade Tunable Infrared Laser Differential Absorption Spectrometer (QC-TILDAS) for measurements of atmospheric ammonia, Atmos. Meas. Tech., 3, 397–406, https://doi.org/10.5194/amt-3-397-2010, 2010. 
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Short summary
Determination of ecosystem exchange fluxes using the eddy covariance technique requires measurements with a fast time response. For ammonia, the time response is limited by adsorption and desorption processes on instrument surfaces, generally leading to a substantial underestimation of fluxes. Based on a 5-month flux dataset, we propose a new method to correct for the ammonia flux loss that is better suited to account for factors like surface aging and contamination than other approaches.