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Proceedings Paper

Information content of measurements in the O2A- and O2B-bands for monitoring of aerosols from space
Author(s): Bringfried M. Pflug; T. Ruppert
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Paper Abstract

The information content of radiance measurements in the O2A- and O2B-bands over the oceans for aerosol monitoring from space is discussed. A simple model of radiation transfer in the system atmosphere/ocean shall be used for estimation of optical thicknesses of different aerosol layers and ocean reflection. There are 3 nonredundant spectrometer channels in the O2A-band around 762 nm and 2 nonredundant channels in the O2B-band around 687 nm. High measurement accuracy of about 1% is more important for the measurements than a halfwidth (Delta) (lambda) FWHM of spectrometer channels smaller than 1 nm. A sensitivity analysis shows that the optical thickness of stratospheric aerosols can be estimated from measurements in the O2A- and O2B-bands. From these results the chance to use combined measurements in both bands for distinction between volcanic and background- stratospheric aerosols exists. There also is a chance to use measurements in the O2A-band for estimation of the optical thickness of aerosols in the free troposphere. The estimation of the optical thickness of aerosols within the maritime boundary layer can be expected from measurements in the O2A-band, if ocean reflection is known. To estimate optical thicknesses of different aerosol layers is not only useful for aerosol studies, but also for better atmospheric correction of satellite images of the ocean surface.

Paper Details

Date Published: 15 September 1993
PDF: 12 pages
Proc. SPIE 1968, Atmospheric Propagation and Remote Sensing II, (15 September 1993); doi: 10.1117/12.154856
Show Author Affiliations
Bringfried M. Pflug, DLR-German Aerospace Research Establishment (Germany)
T. Ruppert, DLR-German Aerospace Research Establishment (Germany)


Published in SPIE Proceedings Vol. 1968:
Atmospheric Propagation and Remote Sensing II
Anton Kohnle; Walter B. Miller, Editor(s)

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