polaris.ocean.vertical.diagnostics.depth_from_thickness
- polaris.ocean.vertical.diagnostics.depth_from_thickness(ds)[source]
Compute the depth of the midpoint of each layer from layerThickness. It is assumed that the layerThickness of invalid levels is 0. If ssh is present in the dataset, depths will be offset by ssh. If bottomDepth is present in the dataset, the location of the bottom of the bottommost vertical level will be compared with bottomDepth.
- Parameters:
ds (xarray.Dataset) – An ocean dataset containing layerThickness and optionally ssh and bottomDepth
- Returns:
z_mid (xarray.DataArray) – The location in meters from the sea surface of the midpoint of each layer (level), positive upward