polaris.tasks.ocean.horiz_press_grad.reference.ReferenceColumn.layer_mean_hpga

ReferenceColumn.layer_mean_hpga(z_tilde_interfaces: ndarray) → ndarray

Layer-averaged HPGA in the edge-normal direction (m s⁻²).

Parameters:

z_tilde_interfaces (ndarray) – Shape (nLayers+1,) interface pseudo-heights, decreasing from surface (index 0) to seafloor (index -1).

Returns:

ndarray – Shape (nLayers,) Gauss-weighted layer-mean HPGA.