Last change
on this file since 3555 was
1954,
checked in by emillour, 7 years ago
|
Mars GCM:
- Make a "doc" subdirectory to store the documentation source files with the code.
EM
|
File size:
1.3 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 | In order to simulate the water cycle with the LMD GCM: |
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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.}. |
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9 | |
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10 | \item It is best to run with a semi-interactive dust (in order to |
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11 | better represent the evolution available condensation nuclei) and thus set |
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12 | {\tt dustbin = 2}, and use corresponding additional tracers ({\tt dust\_mass} |
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13 | and {\tt dust\_number} which correspond to the first two moments of the dust |
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14 | distribution). |
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15 | |
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16 | \item Use the same options as given in the sample {\tt callphys.def.watercycle} |
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17 | file provided in {\tt LMDZ.MARS/deftank}. |
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18 | |
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19 | \item {\bf Settings} |
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20 | You need to run with at least 4 tracers (if you don't have dust |
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21 | ({\tt dustbin=0}) or other chemical species ({\tt photochem=F}), |
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22 | but 7 is recommended, and an appropriate {\tt traceur.def} for running with |
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23 | combined CO22, dust and water cycle should be: |
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24 | \begin{verbatim} |
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25 | 7 |
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26 | co2 |
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27 | dust_mass |
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28 | dust_number |
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29 | h2o_vap |
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30 | h2o_ice |
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31 | ccn_mass |
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32 | ccn_number |
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33 | \end{verbatim} |
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34 | Note that the order in which tracers are set in the {\tt tracer.def} file |
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35 | is not important. |
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36 | |
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37 | \item {\bf Run} \\ \\ |
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38 | Same as usual. Just make sure that your start files contains |
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39 | the initial states for all the tracers you use (or else compile |
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40 | and run {\bf newstart.e} to initialize them). |
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41 | |
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42 | \end {itemize} |
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