Articles | Volume 12, issue 6
https://doi.org/10.5194/amt-12-3403-2019
https://doi.org/10.5194/amt-12-3403-2019
Research article
 | 
27 Jun 2019
Research article |  | 27 Jun 2019

Application of open-path Fourier transform infrared spectroscopy (OP-FTIR) to measure greenhouse gas concentrations from agricultural fields

Cheng-Hsien Lin, Richard H. Grant, Albert J. Heber, and Cliff T. Johnston

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Latest update: 17 Apr 2024
Short summary
The open-path FTIR (OP-FTIR) is often used to measure the atmospheric gas composition and concentrations. The OP-FTIR, however, is sensitive to the changed ambient factors, which likely led to quantitative biases. This study developed methods to minimize the effect of the ambient temperature and humidity on N2O/CO2 quantification. These methods can help the users who implement the OP-FTIR to estimate gas fluxes in the agroecosystem achieve more precise and accurate estimations.