Changeset 240 for palm/trunk/DOC/app/chapter_4.2.html

Timestamp:

Feb 18, 2009 5:50:38 PM (15 years ago)

Author:

letzel

Message:

• External pressure gradient (check_parameters, init_3d_model, header, modules, parin, prognostic_equations)
• New topography case 'single_street_canyon'

File:

• palm/trunk/DOC/app/chapter_4.2.html (modified) (12 diffs)

palm/trunk/DOC/app/chapter_4.2.html

@@ -3398 +3398 @@
 
 
-      <td style="vertical-align: top;"> 
+      <td style="vertical-align: top; font-family: Helvetica,Arial,sans-serif;"> 
       
       
@@ -3411 +3411 @@
       
       
-      <p><span lang="en-GB"><font face="Thorndale, serif">The parameter </font></span><a href="#create_disturbances"><span lang="en-GB"><font face="Thorndale, serif">create_disturbances</font></span></a><font face="Thorndale, serif"><span lang="en-GB">
+      <p><span lang="en-GB">The parameter </span><a href="#create_disturbances"><span lang="en-GB">create_disturbances</span></a><span lang="en-GB">
 describes how to impose
 random perturbations to the horizontal velocity field. The perturbation
@@ -3420 +3420 @@
 velocities are imposed no more. The value of this parameter usually
 must be determined by trial and error (it depends e.g. on the total
-number of grid points).</span> </font> </p>
+number of grid points).</span>  </p>
 
 
@@ -3457 +3457 @@
 
 
-      <td style="vertical-align: top;"> 
-      
-      
-      <p lang="en-GB"><font face="Thorndale, serif"><font size="3">Lower
+      <td style="vertical-align: top; font-family: Helvetica,Arial,sans-serif;"> 
+      
+      
+      <p lang="en-GB"><font size="3">Lower
 limit of the vertical range for which random perturbations are to be
-imposed on the horizontal wind field (</font></font>in <font face="Thorndale, serif"><font size="3">m).&nbsp;
-      </font></font> </p>
-
-
- 
-      
-      
-      <p><span lang="en-GB"><font face="Thorndale, serif">This
+imposed on the horizontal wind field (</font>in <font size="3">m).&nbsp;
+      </font> </p>
+
+
+ 
+      
+      
+      <p><span lang="en-GB">This
 parameter must hold the condition zu(3) &lt;= <b>disturbance_level_b</b>
-&lt;= zu(</font></span><a href="chapter_4.1.html#nz"><span lang="en-GB"><font face="Thorndale, serif">nz-2</font></span></a><span lang="en-GB"><font face="Thorndale, serif">)</font></span><span lang="en-GB"><font face="Thorndale, serif">. Additionally, <b>disturbance_level_b</b>
-&lt;= </font></span><a href="#disturbance_level_t"><span lang="en-GB"><font face="Thorndale, serif">disturbance_level_t</font></span></a>
-      <span lang="en-GB"><font face="Thorndale, serif">must
-also hold.</font></span></p>
-
-
-      
-      
-      <p><span lang="en-GB"><font face="Thorndale, serif">In case of ocean runs (see <a href="chapter_4.1.html#ocean">ocean</a>) </font></span><span lang="en-GB"><span style="font-family: Thorndale,serif;">the default value is <span style="font-weight: bold;">disturbance_level_b</span> = <span style="font-style: italic;">zu(nz * 2 / 3) </span>(negative).</span></span><a href="chapter_4.1.html#nz"><span lang="en-GB"></span></a><span lang="en-GB"></span><span lang="en-GB"></span></p>
-
-
- 
-      
-      
-      <p><span lang="en-GB"><font face="Thorndale, serif">The
-parameter </font></span><a href="#create_disturbances"><span lang="en-GB"><font face="Thorndale, serif">create_disturbances</font></span></a><font face="Thorndale, serif"><span lang="en-GB">
+&lt;= zu(</span><a href="chapter_4.1.html#nz"><span lang="en-GB">nz-2</span></a><span lang="en-GB">)</span><span lang="en-GB">. Additionally, <b>disturbance_level_b</b>
+&lt;= </span><a href="#disturbance_level_t"><span lang="en-GB">disturbance_level_t</span></a>
+      <span lang="en-GB">must
+also hold.</span></p>
+
+
+      
+      
+      <p><span lang="en-GB">In case of ocean runs (see <a href="chapter_4.1.html#ocean">ocean</a>) </span><span lang="en-GB">the default value is <span style="font-weight: bold;">disturbance_level_b</span> = <span style="font-style: italic;">zu(nz * 2 / 3) </span>(negative).</span><a href="chapter_4.1.html#nz"><span lang="en-GB"></span></a><span lang="en-GB"></span><span lang="en-GB"></span></p>
+
+
+ 
+      
+      
+      <p><span lang="en-GB">The
+parameter </span><a href="#create_disturbances"><span lang="en-GB">create_disturbances</span></a><span lang="en-GB">
 describes how to impose
-random perturbations to the horizontal velocity field</span></font><font face="Thorndale, serif"><span lang="en-GB">.</span>
+random perturbations to the horizontal velocity field</span><span lang="en-GB">.</span>
+       </p>
+
+
+ </td>
+
+
+ </tr>
+
+
+ <tr>
+
+
+ <td style="vertical-align: top;"> 
+      
+      
+      <p><a name="disturbance_level_t"></a><b>disturbance_level_t</b></p>
+
+
+
+      </td>
+
+
+ <td style="vertical-align: top;">R</td>
+
+
+
+      <td style="vertical-align: top;"><i>zu(nz/3) or<br>
+
+
+zu(nzt-3)<br>
+
+
+see right</i></td>
+
+
+
+      <td style="vertical-align: top; font-family: Helvetica,Arial,sans-serif;"> 
+      
+      
+      <p lang="en-GB"><font size="3">Upper
+limit of the vertical range for which random perturbations are to be
+imposed on the horizontal wind field (</font>in <font size="3">m).&nbsp;
       </font> </p>
 
 
+ 
+      
+      
+      <p><span lang="en-GB">This
+parameter must hold the condition <b>disturbance_level_t</b>
+&lt;= zu<i>(</i></span><i><a href="chapter_4.1.html#nz"><span lang="en-GB">nz-2</span></a><span lang="en-GB">)</span></i><span lang="en-GB">.
+Additionally, </span><a href="#disturbance_level_b"><span lang="en-GB">disturbance_level_b</span></a>
+      <span lang="en-GB">&lt;=
+      <b>disturbance_level_t</b>
+must also hold.</span></p>
+
+
+      <span lang="en-GB">In case of ocean runs (see <a href="chapter_4.1.html#ocean">ocean</a>) </span><span lang="en-GB">the default value is <span style="font-weight: bold;">disturbance_level_t</span> = <span style="font-style: italic;">zu(nzt - 3</span>)</span><span lang="en-GB"><span style="font-style: italic;"> </span>(negative)</span><span lang="en-GB">.</span>
+      
+      
+      <p><span lang="en-GB">The
+parameter </span><a href="#create_disturbances"><span lang="en-GB">create_disturbances</span></a><span lang="en-GB">
+describes how to impose
+random perturbations to the horizontal velocity field</span><span lang="en-GB">.</span>
+       </p>
+
+
  </td>
 
@@ -3504 +3568 @@
       
       
-      <p><a name="disturbance_level_t"></a><b>disturbance_level_t</b></p>
-
-
-
-      </td>
-
-
- <td style="vertical-align: top;">R</td>
-
-
-
-      <td style="vertical-align: top;"><i>zu(nz/3) or<br>
-
-
-zu(nzt-3)<br>
-
-
-see right</i></td>
-
-
-
-      <td style="vertical-align: top;"> 
-      
-      
-      <p lang="en-GB"><font face="Thorndale, serif"><font size="3">Upper
-limit of the vertical range for which random perturbations are to be
-imposed on the horizontal wind field (</font></font>in <font face="Thorndale, serif"><font size="3">m).&nbsp;
-      </font></font> </p>
-
-
- 
-      
-      
-      <p><span lang="en-GB"><font face="Thorndale, serif">This
-parameter must hold the condition <b>disturbance_level_t</b>
-&lt;= zu<i>(</i></font></span><i><a href="chapter_4.1.html#nz"><span lang="en-GB"><font face="Thorndale, serif">nz-2</font></span></a><span lang="en-GB"><font face="Thorndale, serif">)</font></span></i><span lang="en-GB"><font face="Thorndale, serif">.
-Additionally, </font></span><a href="#disturbance_level_b"><span lang="en-GB"><font face="Thorndale, serif">disturbance_level_b</font></span></a>
-      <span lang="en-GB"><font face="Thorndale, serif">&lt;=
-      <b>disturbance_level_t</b>
-must also hold.</font></span></p>
-
-
-      <span lang="en-GB"><font face="Thorndale, serif">In case of ocean runs (see <a href="chapter_4.1.html#ocean">ocean</a>) </font></span><span lang="en-GB"><span style="font-family: Thorndale,serif;">the default value is <span style="font-weight: bold;">disturbance_level_t</span> = <span style="font-style: italic;">zu(nzt - 3</span>)</span></span><span lang="en-GB"><span style="font-family: Thorndale,serif;"><span style="font-style: italic;"> </span>(negative)</span></span><span lang="en-GB"><span style="font-family: Thorndale,serif;">.</span></span>
-      
-      
-      <p><span lang="en-GB"><font face="Thorndale, serif">The
-parameter </font></span><a href="#create_disturbances"><span lang="en-GB"><font face="Thorndale, serif">create_disturbances</font></span></a><font face="Thorndale, serif"><span lang="en-GB">
-describes how to impose
-random perturbations to the horizontal velocity field</span></font><font face="Thorndale, serif"><span lang="en-GB">.</span>
-      </font> </p>
-
-
- </td>
-
-
- </tr>
-
-
- <tr>
-
-
- <td style="vertical-align: top;"> 
-      
-      
       <p><a name="do2d_at_begin"></a><b>do2d_at_begin</b></p>
 
@@ -3582 +3582 @@
 
 
-      <td style="vertical-align: top;">.F.<br>
+      <td style="vertical-align: top; font-style: italic;">.F.<br>
 
 
@@ -3637 +3637 @@
 
 
-      <td style="vertical-align: top;">.F.<br>
+      <td style="vertical-align: top; font-style: italic;">.F.<br>
 
 
@@ -3685 +3685 @@
 
 
-      <td style="vertical-align: top;">.F.<br>
+      <td style="vertical-align: top; font-style: italic;">.F.<br>
 
 
@@ -3762 +3762 @@
 
 
- <td style="vertical-align: top;">see
+ <td style="vertical-align: top; font-style: italic;">see
 right<br>
 
@@ -3828 +3828 @@
 
 
-    <tr>
+ <tr>
 
 
@@ -3852 +3852 @@
       
       
-      <p lang="en-GB"><font face="Thorndale, serif"><font size="3">Time
-step to be used by the 3d-model (</font></font>in <font face="Thorndale, serif"><font size="3">s).&nbsp;
-      </font></font> </p>
-
-
- 
-      
-      
-      <p><span lang="en-GB"><font face="Thorndale, serif">This parameter</font></span>
-      <font face="Thorndale, serif"><span lang="en-GB">is
+      <font style="font-family: Helvetica,Arial,sans-serif;" face="Thorndale, serif"><font size="3">Time
+step to be used by the 3d-model (</font></font><span style="font-family: Helvetica,Arial,sans-serif;">in </span><font style="font-family: Helvetica,Arial,sans-serif;" face="Thorndale, serif"><font size="3">s).&nbsp;
+      </font></font> 
+
+
+ 
+      
+      
+      <p style="font-family: Helvetica,Arial,sans-serif;"><span lang="en-GB">This parameter</span>
+      <span lang="en-GB">is
 described in
-detail with the initialization parameters (see</span></font><span lang="en-GB"><font face="Thorndale, serif"> </font></span><a href="chapter_4.1.html#dt"><span lang="en-GB"><font face="Thorndale, serif">dt</font></span></a><font face="Thorndale, serif"><span lang="en-GB">).
+detail with the initialization parameters (see</span><span lang="en-GB"> </span><a href="chapter_4.1.html#dt"><span lang="en-GB">dt</span></a><span lang="en-GB">).
 Additionally, it may be
 used as a run parameter and then applies to all restart runs (until it
 is changed again). A switch from a constant time step to a variable
-time step can be achieved with <b>dt</b> = <i>-1.0</i>.</span>
-      </font> </p>
+time step can be achieved with <b>dt</b> = <i>-1.0</i>.</span></p><font face="Thorndale, serif">
+      </font> 
 
 
@@ -3917 +3917 @@
 
 
-      <br>
-
-
-      <font face="Thorndale, serif"><span lang="en-GB">With
+      <br style="font-family: Helvetica,Arial,sans-serif;">
+
+
+      <font style="font-family: Helvetica,Arial,sans-serif;" face="Thorndale, serif"><span lang="en-GB">With
 variable time step (see <span style="font-weight: bold;">dt</span>),
 the number of time levels entering the average can vary from one
-averaging interval to the next (for a more detailed explanation see </span></font><font><a href="#averaging_interval"><span lang="en-GB"><font face="Thorndale, serif">averaging_interval</font></span></a>)</font><font face="Thorndale, serif"><span lang="en-GB">. It
+averaging interval to the next (for a more detailed explanation see </span></font><font style="font-family: Helvetica,Arial,sans-serif;"><a href="#averaging_interval"><span lang="en-GB">averaging_interval</span></a>)</font><font style="font-family: Helvetica,Arial,sans-serif;" face="Thorndale, serif"><span lang="en-GB">. It
 is approximately given by the quotient of <span style="font-weight: bold;">averaging_interval</span> /
 MAX(<span style="font-weight: bold;"> dt_averaging_input</span>,
       <span style="font-weight: bold;">dt</span>) (which
 gives a more or less exact value if a fixed timestep is used and if
-this is an integral divisor of <span style="font-weight: bold;">dt_averaging_input</span>).</span></font>&nbsp;
-      <br>
+this is an integral divisor of <span style="font-weight: bold;">dt_averaging_input</span>).</span></font><span style="font-family: Helvetica,Arial,sans-serif;">&nbsp;
+      </span><br style="font-family: Helvetica,Arial,sans-serif;">