The solar occultation technique for remote sensing of particulates in the earth's atmosphere. I - The inversion of horizon radiances from space

Details The solar occultation technique for remote sensing of particulates in the earth's atmosphere. I - The inversion of horizon radiances from space The solar occultation technique for remote sensing of particulates in the earth's atmosphere. I - The inversion of horizon radiances from space

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81.5375s&link_type=abstract

Journal of Geophysical Research, vol. 81, Oct. 20, 1976, p. 5375-5388.

Physics

Aerosols, Air Pollution, Occultation, Particulates, Pollution Monitoring, Remote Sensors, Scattering Coefficients, Atmospheric Scattering, Atmospheric Stratification, Radiance, Rayleigh Scattering, Satellite Observation, Vertical Distribution

Scientific paper

The aerosol scattering coefficient as a function of height can be recovered from a direct inversion of the single-scattering horizon radiance provided the sun is above the horizon and an independent measurement of extinction as a function of height is made. Aerosol detection is effected by means of spacecraft measurements of the horizon radiance made during periods of spacecraft twilight. A solar occultation technique which allows the twilight measurements to be made when the sun is still above the horizon greatly reduces the complexity of the inversion problem. The second part of the paper reports on the use of a coronograph aboard Skylab to photograph the horizon just before spacecraft twilight in order to monitor the aerosol component above the tropopause. The coronograph picture, centered on 26.5 degrees E longitude and 63.0 degrees S latitude, shows that the aerosol layer peaks at a height of 48 plus or minus 1 km.

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