Glaciation of Mars from 10 million years ago until 10 million years into the future simulated with the model MAIC-2 ...

• Main Authors: Greve, Ralf, Grieger, Björn, Stenzel, Oliver J.
• Format: Conference Object
• Language: English
• Published: Zenodo 2012
• Subjects: Mars; Planetary ice; Obliquity; Ice cap; Polar layered deposits; Ice age
• Online Access: https://dx.doi.org/10.5281/zenodo.3698542; https://zenodo.org/doi/10.5281/zenodo.3698542

Presentation No. PPS03-06, JpGU Meeting 2012, Makuhari Messe, Chiba, Japan, 24 May 2012. Abstract. The Mars Atmosphere-Ice Coupler MAIC-2 is a simple, latitudinal model that consists of a set of parameterizations for the surface temperature, the atmospheric water transport and the surface mass balance (deposition minus sublimation) of water ice. It is driven directly by the orbital parameters obliquity, eccentricity and solar longitude (Ls) of perihelion. Surface temperature is described by the Local Insolation Temperature (LIT) scheme, which uses a daily and latitude-dependent radiation balance. The sublimation rate of water is calculated by an expression for free convection, driven by density differences between water vapour and ambient air, the deposition rate follows from the assumption that any water vapour that exceeds the local saturation pressure condenses instantly, and atmospheric transport of water vapour is approximated by instantaneous mixing with a prescribed north-south gradient. Glacial flow ... : Funding acknowledgements. DFG (German Science Foundation) Priority Programme "Mars and the Terrestrial Planets". Category-2 Research Grant of the Institute of Low Temperature Science (ILTS), Hokkaido University. ...