Research

SPACECRAFT OBSERVATIONS AND RADAR REMOTE SENSING

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  • Radar characterization of a possible ice sheet the size of California and Texas combined just underneath the surface of Mars that goes as deep as a 13-story building [Bramson et al. 2015]
  • Discovery of scarps that expose the stratigraphy of mid-latitude ice sheets on Mars [Dundas et al. 2018]
  • Radar detections (or lack thereof) of mid-latitude ice-rich deposits in and around Hellas Planitia, in the Southern Hemisphere of Mars [Cook et al. 2020]
  • The SWIM (Subsurface Water Ice Mapping) on Mars project: Click here to learn more about the SWIM Project!
  • Radar response of buried lava flows on the Moon
  • Arecibo radar-based model of the shape and surface properties of Itokawa (collaboration with Mike Nolan, Ellen Howell, Patrick Taylor, and Chris Magri)

 

ICY PROCESSES IN OUR SOLAR SYSTEM

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  • Conditions for basal melting of water at the south pole of Mars [Sori and Bramson 2019]
  • Modeling of ice stability in the mid-latitudes of Mars [Bramson et al. 2017
  • A phenomenological model for spiral trough migration which reproduces observations based on possible sublimation and accumulation conditions [Bramson et al. 2019]
  • Temperature-dependent modification of possible cryovolcanic features on Ceres -- viscous flow rates are slow enough at the location of Ahuna Mons that it would remain identifiable as a cryovolcanic feature today, given the expected young age of the dome [Sori et al. 2017a] and can be used to constrain the cryovolcanic rates on Ceres throughout time [Sori et al. 2018]
  • Carbon dioxide ice transport and stability on the Uranian moons -- prediction that the bright spot observed by Voyager 2 inside the crater Wunda is a deposit of CO2 ice [Sori et al. 2017b]
  • Origin of geologically recent flow units in Hrad Vallis, Mars and evidence that pāhoehoe‐like lava flows could have interacted with ground ice in the region to generate meltwater and steam [Hamilton et al. 2018]
  • iSALE modeling of terraced craters in Arcadia Planitia, Mars to constrain possible ice layer properties [Martellato et al. 2020

 

ANALOG STUDIES

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  • Modeling and laboratory experiments of ice sintering processes in non-terrestrial environments (project led by Jamie Molaro)
  • Ground-penetrating radar (GPR) and ice-coring of the Langjökull Glacier in Iceland (project led by Lynn Carter and colleagues)
  • Mapping lava flow margins with differential GPS at Holuhraun, Iceland (led by Christopher Hamilton) [EOS Report]
  • Fractal dimension of lava flow margins at Craters of the Moon (project led by Ethan Schaefer, with field campaign run by NASA's FINESSE program)

 

SPACECRAFT MISSION DEVELOPMENT 

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  • Co-I on COMPASS (Climate Orbiter for Mars Polar Atmospheric and Subsurface Science), a Discovery-class mission concept [Byrne et al. 2020 abstract]
  • Team member on MORIE (Mars Orbiter for Resources, Ice, and Environments), a NASA funded Planetary Mission Concept Study for the 2023 decadal survey [MEPAG presentation]
  • Project Manager for our NASA JPL Planetary Science Summer School team in which we developed a mission concept for a Uranian orbiter featuring a low-cost instrument suite [Elder et al. 2018]
  • Involved in synthesis teams to summarize scientific advancements and priorities for future investigations within the Mars Polar science community [Diniega, Smith, and Bramson 2019Smith et al. 2018]