The Open UniversitySkip to content
 

Penetration of solar radiation into pure and Mars-dust contaminated snow

Kaufmann, E. and Hagermann, A. (2015). Penetration of solar radiation into pure and Mars-dust contaminated snow. Icarus, 252 pp. 144–149.

DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.icarus.2015.01.007
Google Scholar: Look up in Google Scholar

Abstract

Rock and soil surface layers absorb and reflect incoming solar radiation immediately at the surface. Ices on the other hand, whilst opaque in the infrared, are partially transparent in the visible spectral range. These properties are responsible for the “solid-state greenhouse effect” (SSGE), which may play an important role in the energy balance of icy surfaces in the Solar System. To model the SSGE, we need to know not only thermal properties but also optical properties such as the albedo and the absorption scale length of the ice. We have investigated the absorption scale length, also known as e-folding scale, of snow/dust mixtures within the scope of a project directed at investigating the behaviour of the martian polar caps. After measuring the e-folding scale of recrystallized snow we can now also relate the dust content of contaminated snow to the penetration depth of sunlight into the mixture. Equally important, however, is our observation that light penetration through the mixture is dramatically affected by small-scale inhomogeneities.

Item Type: Journal Item
Copyright Holders: 2015 Elsevier Inc.
ISSN: 0019-1035
Keywords: Mars; polar ice caps; solar radiation
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 43495
Depositing User: Axel Hagermann
Date Deposited: 22 Jun 2015 10:20
Last Modified: 07 Dec 2018 10:32
URI: http://oro.open.ac.uk/id/eprint/43495
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU