Computer Science
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.287..710m&link_type=abstract
Nature, vol. 287, Oct. 23, 1980, p. 710, 711.
Computer Science
2
Absorption Spectra, Atmospheric Composition, Atmospheric Density, Electromagnetic Absorption, Light Transmission, Nitrogen Dioxide, Absorption Cross Sections, Atmospheric Boundary Layer, Infrared Spectrophotometers, Solar Spectra, Vertical Distribution
Scientific paper
Ground-based measurements of the vertical column density of NO2 in the atmosphere obtained by differential optical absorption at a low-altitude rural site are reported. Series of direct solar spectra were recorded on clear mornings from sunrise until noon in the spectral range 435-450 nm and compared with a reference spectrum taken at high solar elevation near midday in order to obtain differences in slant-path NO2 concentration as a function of atmospheric mass number. Estimates of total NO2 concentration obtained from the observations are found to range from 0.8 to 5.6 x 10 to the 16th molecules/sq cm, consistent with the values previously reported by Noxon (1975, 1979) at Fritz Peak Observatory.
McMahon B. B.
Simmons E. L.
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