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A "Warm" Or "Cold" Early Mars: Evidence From Valley Networks, Xuezhi Cang
A "Warm" Or "Cold" Early Mars: Evidence From Valley Networks, Xuezhi Cang
Graduate Research Theses & Dissertations
Although Mars is cold and dry today, many lines of evidence suggest that ancient Mars had large amount of water and surface fluvial processes. However, climate modelers have encountered difficulties in modeling such early warm and wet conditions with an above freezing temperature, mainly due to the Martian orbit being further away from the Sun and the faintness of the young Sun. The main purpose of this dissertation is to test the ancient Martian climate hypotheses by investigating the spatial pattern of valley network (VN) properties that can survive post-formational modification (i.e., the robust characteristics) and by analogizing the Earth …