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Hej Weiwen Ji, PISM generally uses rectangular (orthogonal) grids, meaning a global simulation would have to utilize such a grid. This is hard to achieve, considering the global sphere. In addition, some processes, such as those related to Glacial Isostatic Adjustment (GIA), require for the viscous part, an extended grid, which may inhibit a simple global spherical grid. Also, some parameterizations related to the calving processes, require even squared grids. Therefore, I guess it is nothing other than trivial to run PISM globally while expecting that all processes could be used. At least a so-called lon-lat grid is not supported to my knowledge. Best, Christian |
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@crodehacke Got it, thanks! |
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Hej Weiwen Ji, |
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Hi,
I am wondering if PISM can do a global simulation?
it seems that most works using PISM are focusing on specific ice sheets under rectangular regions.
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