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Chinnery, H. E.; Hagermann, A.; Kaufmann, E. and Lewis, S. R.
(2019).
DOI: https://doi.org/10.1029/2018je005771
Abstract
The depth to which solar radiation can penetrate through ice is an important factor in understanding surface‐atmosphere interactions for icy planetary surfaces. Mars hosts both water and carbon dioxide ice on the surface and in the subsurface. At high latitudes during autumn and winter carbon dioxide condenses to form the seasonal polar cap. This has been both modelled and observed to, in part, occur as snowfall. As snow accumulates, the thermal properties of the surface are changed, whether the underlying surface was rocky, regolith or a solid ice sheet. This results in a change (usually increase) in albedo, affecting the proportion of the incident solar energy reflected, or transmitted below the surface of the snow layer. The depth to which light can penetrate through this layer is an important parameter in heat transfer models for the Martian surface, and is often quantified using the e‐folding scale. We present the first measurements of the e‐folding scale in pure carbon dioxide snow for the wavelengths 300 nm to 1100 nm alongside new measurements of water snow.
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- Item ORO ID
- 58941
- Item Type
- Journal Item
- ISSN
- 2169-9097
- Project Funding Details
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Funded Project Name Project ID Funding Body Not Set ST/N50421X/1 Science & Technology Facilities Council (STFC) Not Set ST/S001271/1 Science & Technology Facilities Council (STFC) Not Set ST/P000657/1 Science & Technology Facilities Council (STFC) Not Set ST/R001405/1 UK Space Agency (UKSA) Not Set ST/S00145X/1 UK Space Agency (UKSA) - Academic Unit or School
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Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Copyright Holders
- © 2019 The Authors
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