Measurement of the tropospheric hydroxyl radical by long-path absorption

George H. Mount

doi:10.1117/12.46643

1 September 1991 Measurement of the tropospheric hydroxyl radical by long-path absorption

George H. Mount

Proceedings Volume 1491, Remote Sensing of Atmospheric Chemistry; (1991) https://doi.org/10.1117/12.46643
Event: Orlando '91, 1991, Orlando, FL, United States

Abstract

Results are presented of an experiment employing a laser source and very high resolution ultraviolet absorption spectroscopy to measure the concentration of OH in a clean environment with a sensitivity limit of about 200,000/cu cm (0.01 pptv), with random noise near 50,000/cu cm. This is a factor of 10 lower than the peak values expected in winter and should easily show the seasonal rise to a summer peak 100 times larger than the sensitivity limit. The experiment is to be run under both (normally) clean tropospheric conditions and during the (occasionally) polluted upslope conditions.

Citation Download Citation

George H. Mount "Measurement of the tropospheric hydroxyl radical by long-path absorption", Proc. SPIE 1491, Remote Sensing of Atmospheric Chemistry, (1 September 1991); https://doi.org/10.1117/12.46643

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