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Dynamics of Ices and Fluids on Mars and Kuiper Belt Objects


Abstract The seasonal deposition of CO2 on the polar caps is one of the most dynamic processes on Mars and is a dominant driver of the global climate. Remote sensing temperature and albedo data were used to estimate the subliming mass of CO2 ice on south polar gullies near Sisyphi Cavi. Results showed that column mass abundances range from 400 - 1000 kg.m2 in an area less than 60 km2 in late winter. Complete sublimation of the seasonal caps may occur later than estimated by large-scale studies and is geographically dependent. Seasonal ice depth estimates suggested variations of up to 1.5 m in depth or 75% in porosity at any one time. Interannual variations in these data appeared to correlate with dust activity in the southern hemisphere. Correlation... (more)
Created Date 2019
Contributor Mount, Christopher (Author) / Christensen, Philip R (Advisor) / Desch, Steven J (Committee member) / Bell, James F (Committee member) / Clarke, Amanda B (Committee member) / Whipple, Kelin X (Committee member) / Arizona State University (Publisher)
Subject Remote sensing / Fluid mechanics / Thermodynamics / Ammonia / Charon / Cryovolcanism / Ice / Mars / Poles
Type Doctoral Dissertation
Extent 169 pages
Language English
Copyright
Note Doctoral Dissertation Geological Sciences 2019
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis