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noresm:runmodel:advancednoresm2 [2014-08-06 14:55:23] alfg |
noresm:runmodel:advancednoresm2 [2022-05-31 09:29:32] |
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| - | ====== Advanced configuration of NorESM2 ====== | ||
| - | ===== Creating a new compset ===== | ||
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| - | The essential file to edit is | ||
| - | < | ||
| - | ~/ | ||
| - | </ | ||
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| - | This examples shows how to simply add a to the " | ||
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| - | Under "< | ||
| - | |||
| - | < | ||
| - | <COMPSET sname=" | ||
| - | </ | ||
| - | |||
| - | The " | ||
| - | |||
| - | < | ||
| - | < | ||
| - | </ | ||
| - | |||
| - | The compset needs a description, | ||
| - | < | ||
| - | <desc compset=" | ||
| - | </ | ||
| - | |||
| - | We could also define a specific use-case (namelist) for our compset. This would need a line like: | ||
| - | < | ||
| - | < | ||
| - | </ | ||
| - | |||
| - | This would only work if the file my_namelist.xml exists as | ||
| - | < | ||
| - | noresm/ | ||
| - | </ | ||
| - | |||
| - | |||
| - | ===== Setting up a case with the new compset and building the model ===== | ||
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| - | It should now be possible to create a new case directory, which we here name FAMIPOSLOtst | ||
| - | and configure with 1 degree horizontal atmospheric resolution; | ||
| - | |||
| - | < | ||
| - | ./ | ||
| - | </ | ||
| - | |||
| - | and finally set up and compile the model: | ||
| - | < | ||
| - | cd ../ | ||
| - | </ | ||
| - | |||
| - | < | ||
| - | ./ | ||
| - | </ | ||
| - | |||
| - | < | ||
| - | ./ | ||
| - | </ | ||
| - | |||
| - | ===== Why does it work to change config_compsets.xml ? ===== | ||
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| - | In NorESM there are 3 new config-options for CAM: | ||
| - | * -cam-oslo aerlife (turns on transport of oslo tracers) | ||
| - | * -cam-oslo dirind | ||
| - | * -cam-oslo warmclouds (also turns on interaction with warm clouds) | ||
| - | |||
| - | They change number of tracers and turn on different preprocessor flags in in a perl script called " | ||
| - | < | ||
| - | models/ | ||
| - | </ | ||
| - | |||
| - | To understand the implementation do: | ||
| - | < | ||
| - | svn diff -r 202 models/ | ||
| - | </ | ||
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| - | The new oslo-options also need to be defined, see | ||
| - | < | ||
| - | models/ | ||
| - | </ | ||
| - | |||
| - | To see how these new options were added, do: | ||
| - | < | ||
| - | svn diff -r 202 models/ | ||
| - | </ | ||
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| - | |||
| - | ===== Configure nudging ===== | ||
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| - | ==== Create the met-data ==== | ||
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| - | First run the model to produce 6 hourly data. The following namelists are needed: | ||
| - | |||
| - | < | ||
| - | user_nl_cam | ||
| - | &camexp | ||
| - | mfilt = 1, 4, | ||
| - | nhtfrq | ||
| - | avgflag_pertape =' | ||
| - | fincl2 | ||
| - | </ | ||
| - | |||
| - | < | ||
| - | user_nl_clm | ||
| - | &clmexp | ||
| - | hist_mfilt | ||
| - | hist_nhtfrq | ||
| - | hist_avgflag_pertape | ||
| - | hist_fincl2 | ||
| - | </ | ||
| - | |||
| - | ==== Use the met-data in another run ==== | ||
| - | |||
| - | First create a compset which has the configure-option " | ||
| - | |||
| - | Then use this compset to create a case. You need the following user-input (for example in your user_nl_cam) | ||
| - | |||
| - | < | ||
| - | & | ||
| - | met_data_file='/ | ||
| - | met_filenames_list = '/ | ||
| - | </ | ||
| - | |||
| - | where met_data_file is the first met-data file to read, and met_filenames_list is a list of the following met-data. The first lines of the file should look something like this (guess what the rest of the file should look like? 8-o: ) | ||
| - | < | ||
| - | / | ||
| - | / | ||
| - | / | ||
| - | </ | ||
| - | |||
| - | This file can be created at the place where you put the metdata with this command: | ||
| - | < | ||
| - | alfgr@hexagon-4:/ | ||
| - | </ | ||