Physics
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....9114509a&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Dec. 20, 1986, p. 14509-14514.
Physics
19
Absorption Cross Sections, Atmospheric Chemistry, Oxygen, Photodissociation, Reaction Kinetics, Atmospheric Attenuation, Balloon-Borne Instruments, Stratosphere, Ultraviolet Spectra
Scientific paper
Measurements of the transmittance and deposition of solar ultraviolet energy into the middle stratosphere have been made using a balloon-borne, solar-pointing spectrometer with both 0.012- and 0.10-nm resolution. The full spectral range (185-311 nm) includes much of the molecular oxygen Schumann-Runge (B-X) absorption and the underlying Herzberg (A-X) continuum, allowing the derivation of atmospherically appropriate effective absorption cross sections for these bands. In addition to verifying the recent laboratory measurements of the Herzberg continuum cross section, an analysis of the O2 transmittance suggests that window regions within the Schumann-Runge bands (wavelength less than or equal to 200 nm) may also allow deeper penetration of solar energy than predicted by current photochemical modeling schemes.
Anderson Gail P.
Hall L. A.
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