|Title||A system of conservative regridding for ice–atmosphere coupling in a General Circulation Model (GCM)|
|Publication Type||Journal Article|
|Year of Publication||2014|
|Authors||Fischer, R, Nowicki, S, Kelley, M, Schmidt, GA|
|Journal||Geoscientific Model Development|
The method of elevation classes, in which the ice surface model is run at multiple elevations within each grid cell, has proven to be a useful way for a low-resolution atmosphere inside a general circulation model (GCM) to produce high-resolution downscaled surface mass balance ﬁelds for use in one-way studies coupling atmospheres and ice ﬂow models. Past uses of elevation classes have failed to conserve mass and energy because the transformation used to regrid to the atmosphere was inconsistent with the transformation used to downscale to the ice model. This would cause problems for two-way coupling.