Characterize and simulate multiple chains of physical processes that link the Sun-Earth system, to advance space science and enable Naval/Marine Corps and wider DoD operations to better account for, adapt to, and exploit operational impacts of the space environment due to electrons, ions, and neutrals.


  1. Climatology, weather resulting from cycles: solar, seasonal, etc
  2. Disturbances following solar-driven geomagnetic storms
  3. Data products utilized in current DoD environmental sensing
  4. Effects on space environment applications due to the non-uniform ionosphere and plasmasphere

Conduct data analyses, model simulations and validation in these conceptual time frames:

  • Intervals of days-to-weeks: Whole Heliosphere Interval 2008
  • Comparative solar minima epochs: 2008 vs 1996
  • Episodes of geomagnetic disturbances: e.g. 3-5 April 2010
  • Solar Cycle 23: 1996-2010

In each case:

  • Comprehensive specification of Sun and heliosphere from surface magnetic fields to source surface, with heliospheric propagation to L1 and magnetopause (boundary of geospace)
  • Multiple geospace simulations with different scenarios for EUV irradiance, heliospheric inputs, thermospheric density, winds, electrodynamic coupling, lower boundary conditions
  • Detailed comparisons with observations, e.g. TEC, ionosondes, IRI, UV-remote sensing, GAIM, drag-derived neutral densities
  • Simulations made with forecast inputs

An in-house, first-principles, validated DoD HPC simulation model and suite of specification runs to….

  • Provide new knowledge of geophysical “targets” (SAO, winds, electrodynamics, storms, solar rotation, and solar cycle)
  • Quantify limitations in current operational capabilities
  • Investigate future emerging science and DoD space weather issues
  • Improve platforms to assimilate observations for ops and forecasting
  • Specify requirements for future DoD space weather instruments