# ``longitude``
## Properties
:dimensions: N_PROF
:dtype: float64
## Default Attributes
| Attribute | Value |
|-----|-----|
|``whp_name`` | ``LONGITUDE`` |
|``standard_name`` | ``longitude`` |
|``units`` | ``degree_east`` |
|``C_format`` | ``%9.4f`` |
|``C_format_source`` | ``database`` |
## Description
The longitude as a signed decimal number. By convention, is positive in the eastern hemisphere and negative in the western hemisphere. Positive values do not include a ``+`` character (U+002B), negative values are prefixed with a ``-`` character (U+002D).
:::{warning}
Since this parameter has no units, the positive in the eastern hemisphere and negative in the western hemisphere convention MUST be strictly adhered to.

The geographic coordinate system is not currently reported.
:::