Simulating irradiance and color during lunar eclipses using satellite data

  • Irradiance and color during the total lunar eclipses of 2007 and 2008 are simulated using a ray tracing model that includes refraction, scattering by molecules, and observed or climatological distributions of aerosols, ozone, clouds, and topography around the terminator. Central portions of the umbra appear deep red for almost all eclipses due to preferential removal of short wavelengths in the spectrum of sunlight by scattering in the lower troposphere. The fringe of the umbra appears turquoiseIrradiance and color during the total lunar eclipses of 2007 and 2008 are simulated using a ray tracing model that includes refraction, scattering by molecules, and observed or climatological distributions of aerosols, ozone, clouds, and topography around the terminator. Central portions of the umbra appear deep red for almost all eclipses due to preferential removal of short wavelengths in the spectrum of sunlight by scattering in the lower troposphere. The fringe of the umbra appears turquoise or blue due to selective removal of wavelengths around 600 nm by the Chappuis absorption bands of ozone in the stratosphere. Asymmetric distributions of clouds and aerosols, particularly for the 2008 eclipse, produce minimum calculated irradiance up to 17  arc min from the umbra center, while high ozone content over the arctic makes the northern edge of the umbra deepest blue. © 2008 Optical Society of Americashow moreshow less

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Metadaten
Author:Stanley David Gedzelman, Michael Vollmer
DOI:https://doi.org/http://dx.doi.org/10.1364/AO.47.00H149
Parent Title (English):In: Applied Optics 47 (2008) 34, pp. H149-H156
Document Type:Article
Language:English
Year of Publishing:2008
Date of Publication (online):2014/01/06
Release Date:2014/01/06
First Page:H149
Last Page:H156
University Bibliography:Hochschulbibliographie
Licence (German):Creative Commons - Namensnennung, Nicht kommerziell, Keine Bearbeitung