Changes between Version 74 and Version 75 of doc/app/runtime_parameters

Timestamp:

Sep 14, 2010 11:13:15 AM (15 years ago)

Author:

weinreis

Comment:

--

doc/app/runtime_parameters

@@ -287 +287 @@
 |----------------
 {{{#!td style="vertical-align:top"
+[=#dt '''dt''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+variable
+}}}
+{{{#!td
+Time step to be used by the 3d-model (in s).\\\\
+This parameter is described in detail with the initialization parameters (see [[../inipar#dt|dt]]). 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 '''dt''' = ''-1.0.''
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#dt_averaging_input '''dt_averaging_input''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+0.0
+}}}
+{{{#!td
+Temporal interval of data which are subject to temporal averaging (in s).\\\\
+By default, data from each timestep within the interval defined by [#averaging_interval averaging_interval] are used for calculating the temporal average. By choosing '''dt_averaging_input''' > ''dt'', the number of time levels entering the average can be minimized. This reduces the CPU-time of a run but may worsen the quality of the average's statistics.\\\\
+With variable time step (see [#dt dt]), the number of time levels entering the average can vary from one averaging interval to the next (for a more detailed explanation see [#averaging_interval averaging_interval]). It is approximately given by the quotient of '''averaging_interval''' / MAX(''' dt_averaging_input''', '''dt''') (which gives a more or less exact value if a fixed timestep is used and if this is an integral divisor of '''dt_averaging_input''').\\\\
+'''Example:'''
+  With an averaging interval of 100.0 s and '''dt_averaging_input''' = ''10.0,'' the time levels entering the average have a (minimum) distance of 10.0 s (their distance may
+  of course be larger if the current timestep is larger than 10.0 s), so the average is calculated from the data of (maximum) 10 time levels.
+It is allowed to change '''dt_averaging_input''' during a job chain. If the last averaging interval of the run previous to the change could not be completed (i.e. has to be finished in the current run), the individual profiles and/or spectra entering the averaging are not uniformly distributed over the averaging interval.\\\\
+Parameter [#dt_averaging_input_pr dt_averaging_input_pr] can be used to define a different temporal interval for vertical profile data and spectra.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#dummy '''dummy''']
+}}}
+{{{#!td style="vertical-align:top"
+dummy
+}}}
+{{{#!td style="vertical-align:top"
+dummy
+}}}
+{{{#!td
+dummy
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#dummy '''dummy''']
+}}}
+{{{#!td style="vertical-align:top"
+dummy
+}}}
+{{{#!td style="vertical-align:top"
+dummy
+}}}
+{{{#!td
+dummy
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
 [=#dummy '''dummy''']
 }}}