CF specifications for hycom datasets

[register]
name=hycom

    [[attrs]]
    nsigma = "[0-9]?"

[sglocator]
name_format="{root}_{loc}"
valid_locations=u,v

[vertical]
positive=down
type=dz

[data_vars]

    [[u]]
    loc=u
        [[[add_coords_loc]]]
        lon=True
        lat=True
        x=True
        y=True

    [[v]]
    loc=v
        [[[add_coords_loc]]]
        lon=True
        lat=True
        x=True
        y=True

    [[bathy]]
    name=bathymetry
    add_loc=True

    [[dz]]
    name=h

[coords]

    [[x]]
    name=X

    [[y]]
    name=Y

    [[z]]
    name=lev