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Jules M. Goldspiel

Report on research
I joined PSI as a Senior Scientist in August 2012.  Coming to PSI late in the year, my research activities in 2012 concentrated mostly on preparing for new project starts in 2013. 
One area of my research focused on the designing of a computer model that can be used for calculating the thermal and hydrologic evolution of a lake (or pond or pool) of liquid water on the surface of Mars under the current thin, cold and dry environment, and under past environments that may have had a thicker, warmer and/or wetter climate.  In this model, water flows onto the surface from a confined or unconfined aquifer which discharges from springs on the floors of martian craters and from seeps on crater walls.  The purpose of the model is to simulate the detailed physical and thermal interactions between the atmosphere, groundwater-fed pools of liquid water on the surface, and the groundwater source under different scenarios.  The simulations from this model will be used to identify the key geophysical, geological and hydrological parameters that can most dramatically affect these interactions, and to determine the effects that the interactions between groundwater source, surface water and atmosphere have on the sustainability of liquid water on the surface of Mars under a range of plausible environmental and hydrogeological conditions.  Results from the model will be used to assess the hydrogeological and climatological implications for the formation and persistence of liquid water pools in the current climate and possible past climates.  Funding to initiate this project will be sought through NASA grant competitions in 2013.
Research has also begun to design a multi-disciplinary project that will combine terrestrial empirical data, theoretical models, field analyses, and spectral analyses in an attempt to develop a method for distinguishing between low- and high-temperature phyllosilicates (e.g., clays) from measurements that could be conducted by landed instruments on Mars.  Such determinations of low- or high-temperature aqueous environments from landed instruments would be particularly important for assessing the past and present habitability on Mars.  Funding to initiate this project will be sought through NASA or NSF grant competitions in 2013.
Service to the Science Community (e.g., advisory panels, society offices)
1. External Evaluator, 2012 NASA Mars Data Analysis Program
Research Year: 
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