d"degrees_E". <a name="rev2_issue12" id="rev2_issue12"></a>The unit "degrees_west"(westward positive) is not recommended because it implies a negative conversion factor from degrees_east.</p>
<p>Longitudes may be represented modulo 360. Thus, for example, -180,180, and 540 are all valid representations of the International Dateline and 0 and 360 are both valid representations of the Prime Meridian. Note, however, that the sequence of numerical longitude values stored in the netCDF file must be monotonic in 