The Impact Of Shadows In A Mesoscale Climate Model On
The Atmosphere-Surface Interactions Relating To Icerich Landforms
L.-A. Foley, School Of Physical Sciences, Open University, Uk (Lori-Ann.Foley@Open.Ac.Uk), S.R. Lewis, M.R.
Balme, J. Holmes, School Of Physical Sciences, Open University, Uk.

Introduction:
The Amount Of Shadow Cast On A Landscape Varies
With, Inter Alia, Latitude And Topography (E.G. 1–3),
And When Shadow Is Included In A Climate Model It
Can Influence Atmospheric Variables Such As Surface
Temperature, Wind Speed And Wind Direction. This
Can In Turn Influence How The Deposition And Evolution Over Time Of Water, Ice Or Snow Are Represented
In Models Of Martian Surface-Atmosphere Interaction.
Surface Features That Appear To Be Heavily Influenced By The Atmospheric Conditions And The Location’S Topography Include Viscous Flow Features
(Vffs). Interpreted As Debris-Covered Glaciers4, They
Undergo A Slow, Plastic Deformation Due To Gravity,
Resulting In The Movement Of Ice And Debris Down The
Steep Slopes On Which They Are Preferentially Found5–
7
. Their Evolution Is Distinct From Other Nearby Icerich Landforms That Exist In Different Topographic