Diurnal variations of some atmospheric gases as measured by Fourier transform spectroscopy

George M. Russwurm; Jeffrey W. Childers; Edgar L. Thompson Jr.

doi:10.1117/12.210825

31 May 1995 Diurnal variations of some atmospheric gases as measured by Fourier transform spectroscopy

George M. Russwurm, Jeffrey W. Childers, Edgar L. Thompson Jr.

Proceedings Volume 2365, Optical Sensing for Environmental and Process Monitoring; (1995) https://doi.org/10.1117/12.210825
Event: Optical Sensing for Environmental and Process Monitoring, 1994, McLean, VA, United States

Abstract

A set of data collected over the time period November 1993 to October 1994 is discussed in this paper. Although they are not a continuous data set, the FT-IR spectra were collected on 127 days during the year for a total 4463 spectra. These have all been analyzed for N₂O, CH₄, CO, O₃, and C₂H₄. Ethylene was measured on only a few occasions during the year and was only once substantially above the detection limit. The goal of this work was to determine whether any of the first four gases named above could be used as surrogate standards for precision and accuracy measurements for the FT-IR technique. This work shows that the daily variability of CO and O₃ is to high for these gases to be used for QA/QC purposes, whereas N₂O can be used. Under certain circumstances CH₄ can also be used, but only with great care, and in the presence of a local, varying source, it should not be used.

Citation Download Citation

George M. Russwurm, Jeffrey W. Childers, and Edgar L. Thompson Jr. "Diurnal variations of some atmospheric gases as measured by Fourier transform spectroscopy", Proc. SPIE 2365, Optical Sensing for Environmental and Process Monitoring, (31 May 1995); https://doi.org/10.1117/12.210825

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