;</tt></td><td>   verbose flag for debugging (optional). <br>&nbsp;&nbsp;&nbsp;<span class="type">[logical]</span></td>
</tr>
</table>
</dd>
<br>
<dt>
<b>INPUT/OUTPUT</b>
</dt>
<dd>
<table border="0">
<tr>
<td valign="top" align="left"><tt>data&nbsp;&nbsp;&nbsp;</tt></td><td>   global or local data array <br>&nbsp;&nbsp;&nbsp;<span class="type">[real, dimension(:,:),(:,:,:)]</span></td>
</tr>
</table>
</dd>
<br>
</dl>
</li>
<li>
<a name="get_external_field_size"></a>
<h4>get_external_field_size</h4>
<dl>
<d