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| Titel |
Theoretical study of solar light reflectance from vertical snow surfaces |
| VerfasserIn |
O. V. Nikolaeva, A. A. Kokhanovsky |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1994-0416
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| Digitales Dokument |
URL |
| Erschienen |
In: The Cryosphere ; 7, no. 2 ; Nr. 7, no. 2 (2013-04-05), S.657-666 |
| Datensatznummer |
250017957
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| Publikation (Nr.) |
 copernicus.org/tc-7-657-2013.pdf |
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| Zusammenfassung |
| The influence of horizontal and vertical inhomogeneity of snow surfaces on
solar light reflectance is studied using the radiative transfer theory (RTT).
We compared 1-D RTT and 2-D RTT and found that large errors are produced if
the 1-D RTT is used for the calculation of the snow reflection function (and,
therefore, also in the retrievals of the snow grain radii) in 2-D measurement
geometries. Such 2-D geometries are common in the procedures for the
determination of the effective snow grain radii using near-infrared
photography and spectroscopy of vertical snow walls. In particular, we have
considered three cases for the numerical calculations: (1) the case with no
black film; (2) the case with a black film at the pit's bottom; (3) the case
with a black film at the pit's bottom and also at one of the vertical snow
walls. |
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