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Terrestrial OH abundance measurement by spectroscopic observation of resonance absorption of sunlight
Author(s) -
Burnett Clyde R.
Publication year - 1976
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl003i006p00319
Subject(s) - daytime , sunlight , troposphere , abundance (ecology) , absorption (acoustics) , resonance (particle physics) , atmospheric sciences , environmental science , geology , astronomy , optics , physics , atomic physics , fishery , biology
Spectroscopic observations have been made of the resonance absorption of sunlight by terrestrial OH. Changes in the daytime OH slant column absorption were observed, from which lower limits on the vertical abundances were calculated. These atmospheric vertical abundances were on the order 10 14 /cm² with apparent large daytime variations. The tropospheric contribution is expected to be not more than 10 13 /cm². The abundances reported here are thus predominately due to stratospheric OH.