Simulation Grid Choices for OpenGGCM Model

OpenGGCM uses stretch-cartesian grid: an orthogonal grid with variable spacing in each of the coordinate directions. CCMC is currently offering four grids for OpengGGCM runs:

1. Grid with 3,150,000 cells:
   
   • Simulation box size:
     -350 R_E < x < 24 R_E
     |z|, |y| < 48
     
   • (NX=315, NY=100, NZ=100)
     
   • You can examine this grid in more detail by viewing the results of request CCMC_CCMC_041008_1 and choosing the "Show simulation grid" option.

2. Overview grid, ~ 6,5 mln. cells:
   
   • Simulation box size:
     -350 R_E < x < 24 R_E
     |z|, |y| < 48
     
   • (NX=455, NY=120, NZ=120)
     
   • You can examine this grid in more detail by viewing the results of request CCMC_CCMC_050808_1 and choosing the "Show simulation grid" option.

3. Grid with emphasis on dayside magnetopause, ~ 6,5 mln. cells
   
   • Simulation box size:
     -350 R_E < x < 24 R_E
     |z|, |y| < 48
     
   • (NX=455, NY=120, NZ=120)
     
   • You can examine this grid in more detail by viewing the results of request CCMC_CCMC_050808_2 and choosing the "Show simulation grid" option.

4. Grid with emphasis on near- and mid-tail, ~ 9 mln. cells:
   
   • Simulation box size:
     -350 R_E < x < 24 R_E
     |z|, |y| < 48
     
   • (NX=426, NY=144, NZ=144)
     
   • You can examine this grid in more detail by viewing the results of request CCMC_CCMC_050808_3 and choosing the "Show simulation grid" option.

Please note that if you require a special grid, please specify so in the "Special Request" box at the end of run submission and/or contact the CCMC staff.

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Updated: Feb. 4, 2020 by Lutz Rastätter