polaris.tasks.ocean.horiz_press_grad.edge.edge_mean

polaris.tasks.ocean.horiz_press_grad.edge.edge_mean(field: DataArray) → DataArray

The two-column edge average 0.5 * (f_0 + f_1).

Parameters:

field (xarray.DataArray) – A field with an nCells dimension of size 2.

Returns:

mean (xarray.DataArray) – The average, with nCells contracted away.