Articles | Volume 11, issue 3
Atmos. Meas. Tech., 11, 1549–1563, 2018
https://doi.org/10.5194/amt-11-1549-2018
Atmos. Meas. Tech., 11, 1549–1563, 2018
https://doi.org/10.5194/amt-11-1549-2018

Research article 20 Mar 2018

Research article | 20 Mar 2018

Long open-path measurements of greenhouse gases in air using near-infrared Fourier transform spectroscopy

David W. T. Griffith et al.

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Short summary
Measurements of atmospheric trace gases over an open path complement in situ measurements by spatial averaging. This paper describes the first open-path measurements of CO2, CH4 and other trace gases by near-infrared Fourier transform spectroscopy. The measurements were made in Heidelberg, Germany, for 4 months in 2014 over a 1.5 km path and compared to in situ measurements made at one end of the path. The experiment setup and methods (and the comparisons of open path to in situ) are described.