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| Titel |
Effect of reflectance model choice on earthshine-based terrestrial albedo determinations. |
| VerfasserIn |
Peter Thejll, Hans Gleisner, Chris Flynn |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250124840
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| Publikation (Nr.) |
 EGU/EGU2016-4333.pdf |
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| Zusammenfassung |
| Earthshine observations can be used to determine near-hemispheric
average terrestrial albedos by careful observation of the relative
strength of the earthshine-lit half of the Moon coupled with correct
modelling of the reflectances of Earth and Moon, as well as lunar
single-scattering albedo maps. Using our own observations of the
earthshine, from Mauna Loa Observatory in 2011-12, we investigate the
influence of the choice of bidirectional reflectance models for the Moon
on derived terrestrial albedos. We find a considerable dependence on
albedo results in this choice, and discuss ways to determine what
the origin of the dependence is - e.g is it in the joint choices of
lunar and terrestrial BRDFs, or is the choice of terrestrial BRDF less
important than the lunar one? We report on the results of modelling
lunar reflectance and albedo in 6 ways and terrestrial reflectance in
two ways, assuming a uniform single-scattering albedo on Earth. |
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