USAP-DC

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Orbital Spectral Mapping of Surface Compositions in the Antarctic Dry Valleys: Regional Distributions of Secondary Mineral-Phases as Climate Indicators Description/Abstract Abstract This project uses Aster and Hyperion remote sensing data combined with field observations and laboratory analysis to map soils in the McMurdo Dry Valleys of Antarctica. The goal is to use mineral abundances, compositions, and spatial heterogeneities to investigate the connections between microclimate and surface characteristics. The valleys are one of the most unique landscapes on earth. The outcomes will be relevant to understanding their geologic, biologic, and climactic history, and offer insight into the Martian landscape. The main broader impacts are graduate education and curriculum development involving K12 teachers. Personnel Person Role Wyatt, Michael Investigator Funding Antarctic Earth Sciences Award # 0739702 AMD - DIF Record(s) NSF-ANT07-39702 Data Management Plan None in the Database Product Level: Not provided Publications Gough, R. V., Wong, J., Dickson, J. L., Levy, J. S., Head, J. W., Marchant, D. R., & Tolbert, M. A. (2017). Brine formation via deliquescence by salts found near Don Juan Pond, Antarctica: Laboratory experiments and field observational results. Earth and Planetary Science Letters, 476, 189–198. (doi:10.1016/j.epsl.2017.08.003) Salvatore, M. R., Mustard, J. F., Head, J. W., Rogers, A. D., & Cooper, R. F. (2014). The dominance of cold and dry alteration processes on recent Mars, as revealed through pan-spectral orbital analyses. Earth and Planetary Science Letters, 404, 261–272. (doi:10.1016/j.epsl.2014.08.006) Platforms and Instruments