Left: Resolution vertical grid spacing in different model configurations (88L, 110L, 70L, 32L and WRF), note 56L is the same as 88L in the lower levels, Right: Same as left, but zoomed into the lowest levels.

Same as image above, with additional model grids (88L, 110L, 32L, 58L and 93L)

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Read about model layer history and our decision to regrid MERRA reanalysis to the CAM or WACCM vertical grid: History of model layers: 56 versus 32