Last change
on this file since 2613 was
987,
checked in by jleconte, 12 years ago
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11/06/2013 == JL+EM
- User manual (+ sources) added in DOC.
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File size:
1.4 KB
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1 | \chapter{Water Cycle Simulation} |
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2 | |
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3 | \label{sc:water} |
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4 | |
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5 | To simulate the water cycle with the LMD Generic Model: |
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6 | |
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7 | \begin{itemize} |
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8 | \item In {\tt callphys.def}, set tracer to true: {\tt tracer=.true.}. In the radiative |
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9 | transfer sub-section, chose an appropriate correlated-k database that includes the effect |
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10 | of water vapour (e.g. {\tt corrkdir=CO2H2Ovar}), and set {\tt varactive=.true.}, {\tt varfixed=.false.}. |
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11 | In the water cycle sub-section you can chose various parameters - see below for a standard example. |
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12 | |
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13 | \input{input/h2o_list.tex} |
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14 | |
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15 | \item You need to compile with at least 2 tracers. If you don't have CO2 clouds, |
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16 | dust or other tracers, compilation is done with the command lines: |
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17 | \begin{verbatim} |
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18 | makegcm -d 64x48x20 -t 2 -p std -b 32x36 newstart |
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19 | \end{verbatim} |
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20 | \begin{verbatim} |
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21 | makegcm -d 64x48x20 -t 2 -p std -b 32x36 gcm |
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22 | \end{verbatim} |
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23 | |
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24 | Of course, you will also need an appropriate {\tt traceur.def} file |
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25 | indicating you will use tracers {\tt h2o\_vap} and {\tt h2o\_ice}; |
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26 | if you only run with 2 tracers, then the contents of the {\tt traceur.def} |
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27 | file should be: |
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28 | \begin{verbatim} |
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29 | 2 |
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30 | h2o_ice |
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31 | h2o_vap |
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32 | \end{verbatim} |
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33 | Note that the order in which tracers are set in the {\tt traceur.def} file |
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34 | is not important. |
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35 | |
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36 | \item {\bf Run} \\ \\ |
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37 | Same as usual. Just make sure that your start files contains |
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38 | the initial states for water, with an initial state for water vapour / ice |
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39 | in the atmosphere and ice / liquid on the surface. |
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40 | |
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41 | \end {itemize} |
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