">self</span> 
    <span class="c">!! Domain instance</span>
  <span class="kt">real</span><span class="p">(</span><span class="nb">kind</span><span class="o">=</span><span class="n">rk</span><span class="p">),</span><span class="k">dimension</span><span class="p">(:,:),</span><span class="k">allocatable</span> <span class="kd">::</span> <span class="n">depth</span> 
    <span class="c">!! Mean water depth [m]</span>
  <span class="n">depth</span> <span class="o">=</span> <span class="n">self</span> <span c