Integrated Numerical Simulation of the SolarTerrestrial Environment LWS

Integrated Numerical Simulation of the Solar-Terrestrial Environment LWS Grant NAG 5 -12652 C. Goodrich, Principal Investigator Goal: To develop and test a general software framework that is capable of linking into a coherent whole the wide range of simulation codes that will be required for the success of the LWS program 1

Example - Geospace Coupling Global Magnetosphere Inner Magnetosphere – Ring Current Ionosphere/Thermosphere 2

Geospace Codes with Network and parameters passed B, P, r Inner Magnetosphere Coupler VB, fv fv Global Magnetosphere-LFM P, r Jll Electrostatic Potential Coupler Jll, np, Tp Ring Current-RCM (SH+SP) = Jll+Jwinds F Jll, ni, Ti Magnetosphere Ionosphere Coupler Fe , E 0 F Conductivities: Sp, Sh, Jwinds ITM–TI*CGM Comm Channels (Inter. Comm) Data Interpolation and manipulation (Overture) 3

Integrated Numerical Simulation of the Solar-Terrestrial Environment • We show here the geospace coupling of our project, which is the most complex • Three core codes which are strongly coupled together - LFM, RCM, TI*CGM • Communication channels via the Inter. Comm package (http: //www. cs. umd. edu/projects/hpsl/chaos/Research. Areas/ic/) • Data interpolation and manipulation Coupling processes using the capabilities of the Overture package (http: //www. llnl. gov/CASC/Overture/) • Current Status of project • Separate (two-way) coupling between the LFM and TING (one of the TI*CGM family) codes and the LFM and RCM codes using Inter. Comm • Initial implementation of the Electrostatic Potential Coupler for LFM-TING (interpolation, grid rotation, …) in Overture • Initial design for extension EP Coupler to low latitude • Future Focus • Implement Inner Magnetosphere Coupler in Overture • Create Inter. Comm linkage and Overture coupler for coronal and heliosphere codes • Test optimize combined Inter. Comm/Overture framework • Develop and field test user documentation 4