Physics – Optics
Scientific paper
Aug 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976georl...3..466p&link_type=abstract
Geophysical Research Letters, vol. 3, Aug. 1976, p. 466-468.
Physics
Optics
18
Atmospheric Optics, Diurnal Variations, Dye Lasers, Hydroxyl Radicals, Troposphere, Absorption Spectra, Annual Variations, Frequency Shift, Light Scattering, Photographic Emulsions, Signal To Noise Ratios, Ultraviolet Lasers
Scientific paper
OH has been detected in the lower troposphere by optical absorption at 307.995 nm along a 7.8 km path above Juelich (51 degrees North, 6 degrees East). The detection limit depended on the quality of the photographic exposure and reached 2 x 10 to the 6th/cu cm in the most favorable cases. OH generally remained below 4 x 10 to the 6th/cu cm, the average detection limit. But on several occasions during the observation period from mid-August to November 1975 concentrations up to 7 x 10 to the 6th/cu cm were observed.
Ehhalt D. H.
Paetz H. W.
Perner Dieter
Platt Ulrich
Roeth Ernst-Peter
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