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| Titel |
A method to retrieve super-thin cloud optical depth over ocean background with polarized sunlight |
| VerfasserIn |
W. Sun, R. R. Baize, G. Videen, Y. Hu, Q. Fu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 15, no. 20 ; Nr. 15, no. 20 (2015-10-27), S.11909-11918 |
| Datensatznummer |
250120122
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| Publikation (Nr.) |
 copernicus.org/acp-15-11909-2015.pdf |
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| Zusammenfassung |
| In this work, an algorithm that uses the polarization angle of the
backscattered solar radiation to detect clouds with optical depth (OD)
< ~ 0.3 is further developed. We find that at viewing
angles within ± ∼ 8° around the backscattering
direction, the p-polarized intensity that is parallel to the meridian plane
of reflected light from the surface is sensitive to, and nearly linearly related
to, the optical depth of super-thin clouds. Moreover, our sensitivity study
suggests that the p-polarized intensity at these viewing angles is not
sensitive to the ocean surface conditions. Using this property of
p-polarized intensity, super-thin clouds' optical depth can be retrieved. |
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