Physics – Optics
Scientific paper
Sep 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974icar...23....8p&link_type=abstract
Icarus, vol. 23, Sept. 1974, p. 8-26.
Physics
Optics
12
Atmospheric Composition, Cloud Physics, Infrared Reflection, Near Infrared Radiation, Sulfuric Acid, Venus Clouds, Absorption Spectra, Airborne Equipment, Atmospheric Optics, Emission Spectra, Infrared Spectrophotometers, Lear Jet Aircraft, Optical Measurement, Venera 8 Satellite, Venus Probes
Scientific paper
A comparison of aircraft-based measurement data on Venus' near-infrared (1.2- to 4.1-micron) reflection spectrum with computer generated spectra of a number of cloud candidates shows a 75-% or more concentrated water solution of sulfuric acid to give the only acceptable match to the profile of Venus' strong 3-micron absorption feature. However, the measurement data obtained also show a modest decline in reflectivity from 2.3-micron to 1.2-micron wavelength, which is inconsistent with the flat spectrum of sulfuric acid in this spectral region. It is hypothesized that this decline is due to impurities in the sulfuric acid droplets.
Augason Gordon C.
Baldwin B. J.
Caroff Lawrence J.
Chackerian Charles Jr.
Erickson Edwin F.
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