Tuesday August 30

Surface Compositions

Session chair - Hal Weaver (APL)

8:30Alan Stern (SwRI)
Welcome and introduction
  • Overview of the New Horizons Pluto system encounter
9:00Will Grundy (Lowell Obs.)
Surface Composition Overview
  • New Horizons compositional remote sensing capabilities
  • Review what is known about Pluto and Charon surface compositions
  • Summarize relevant current and upcoming observations
  • Identify processes we need to be thinking more about
9:35Jeff Kargel (U. Arizona)
Thermodynamic Behaviors of Surface Components
10:10Coffee break
10:25Reggie Hudson (NASA GSFC)
Radiolysis of Surface Components
11:00Robert Hodyss (JPL)
Photolysis of Surface Components
11:35Dale Cruikshank (NASA ARC)
12:10Lunch break
1:40Olivier Mousis (Obs. de Besançon)
Bulk Composition and Surface Inventories
  • Bulk compositional inventory
  • Mechanisms for trapping volatiles in the interior
  • Effects of clathration on volatile inventories

Volatile Transport

Session chair - Leslie Young (SwRI)

2:15John Spencer (SwRI)
Volatile Transport Overview
  • Basic physics
  • Local thermal segregation of water ice on the Galilean satellites
  • Global thermal segregation of water ice on Iapetus
  • Behavior of more volatile species, e.g. CO2
2:50Coffee break
3:05Tim Titus (USGS)
Icy Surfaces on Mars
3:40John Stansberry (U. Arizona)
Thermal Properties and Surface/Atmosphere interactions on Pluto and Triton
  • Observational constraints on thermal inertias, albedos, emissivities
  • Physics of ice/atmosphere interactions
  • The "isothermal frost" paradigm
  • Implications for GCMs
4:15Leslie Young (SwRI)
Volatile Migration Models for Pluto and Triton
  • Review volatile transport models and their implications for Pluto and other bodies
  • Observational constraints, especially using occultations
4:50Poster presentations