Status of the Next-Generation OpenGGCM Model

Kai Germaschewski1, Joachim Raeder2, Amitava Bhattacharjee3, Liwei Lin4, Kristofor-Ryan M Maynard4 and Liang Wang5, (1)University of New Hampshire, Durham, NH, United States, (2)University of New Hampshire, Department of Physics & Astronomy, and Space Science Center, Durham, United States, (3)Princeton University, Princeton Plasma Physics Laboratory, Princeton, NJ, United States, (4)University of New Hampshire Main Campus, Durham, NH, United States, (5)Princeton University, Princeton, United States
Abstract:
OpenGGCM is a global coupled magnetosphere – ionosphere – thermosphere model that has been in use for more than two decades, and which has since 2001 been available as a community model at the Community Coordinated Modeling Center (ccmc.gsfc.nasa.gov) for model runs on demand. As new versions of the OpenGGCM are periodically released, here we will give an update on the features of the next generation, modularized, OpenGGCM model.

New features of the model include: (1) more options for the MHD solver, including a modern van-Leer constrained-transport solver, (2) a Generalized Ohm's Law including the Hall term, (3) new physics models, in particular a 5-moment and 10-moment multi-fluid plasma description, (4) block-structured adaptive mesh refinement with support for staggered electric and magnetic fields for the constrained transport method, and (5) computational enhancements like command-line selectable modules and sub-models, parallel I/O, and checkpointing.

Back to: Physics of the Diffusion Region in Collisionless Magnetic Reconnection II Posters