  <td>optional</td>
  
  <td>dimension(:,:)</td><td>::</td>
  <td><strong>dx</strong></td><td><p>Grid spacing in x-direction [m]</p></td>
  
</tr>

  
  
  
  
<tr>
  
  <td><span class="anchor" ></span>real(kind=realkind),</td>
  <td>intent(in),</td>
  <td>optional</td>
  
  <td>dimension(:,:)</td><td>::</td>
  <td><strong>dy</strong></td><td><p>Grid spacing in y-direction [m]</p></td>
  
</tr>

  
  
  
  
<tr>
  
  <td><span class="anchor" ></span>real(kind=realkind),</td>
  <td>intent(in),</td>
  <td>op