Articles | Volume 13, issue 4
Atmos. Meas. Tech., 13, 2001–2013, 2020
https://doi.org/10.5194/amt-13-2001-2020
Atmos. Meas. Tech., 13, 2001–2013, 2020
https://doi.org/10.5194/amt-13-2001-2020

Research article 21 Apr 2020

Research article | 21 Apr 2020

Sources of error in open-path FTIR measurements of N2O and CO2 emitted from agricultural fields

Cheng-Hsien Lin et al.

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Latest update: 16 Apr 2021
Short summary
Gas quantification using the open-path Fourier transform infrared spectrometer (OP-FTIR) is subject to interferences of environmental variables, leading to errors in gas concentration calculations. This study investigated the effects of ambient water vapour content, temperature, path lengths, and wind speed on the quantification of N2O and CO2 concentrations, which can help the OP-FTIR users to avoid these errors and improve the precision and accuracy of the atmospheric gas quantification.