# ``sm_depth``
## Properties
:dimensions: N_PROF, N_LEVELS
:dtype: float64
## Default Attributes
| Attribute | Value |
|-----|-----|
|``whp_name`` | ``SMDEPTH`` |
|``whp_unit`` | ``METERS`` |
|``units`` | ``meters`` |
|``C_format`` | ``%9.1f`` |
|``C_format_source`` | ``database`` |
## Description
Depth calculated from pressure using the Saunders-Mantyla method. 

In the ODF software this is cited as follows:

Saunders, P. M., 1981. Practical Conversion of Pressure to Depth. Journal of Physical Oceanography 11, 573-574.
Mantyla, A. W., 1982-1983. Private correspondence.