Differences

This shows you the differences between two versions of the page.

--- noresm:runmodel:advancednoresm2 [2014-03-05 13:36:14]
alfg [Creating a compset]
+++ noresm:runmodel:advancednoresm2 [2022-05-31 09:29:32]
@@ Line 1: / Line 1: @@
-====== Advanced configuration of NorESM2 ======
-===== Creating a new compset =====
-The essential file to edit is
-<file>
-~/noresm/scripts/ccsm_utils/Case.template/config_compsets.xml
-</file>
-This examples shows how to simply add a to the "F_AMIP_CAM5" compset:
-Under "<!-- F compsets -->", add
-<file>
-<COMPSET sname="F_AMIP_CAM5-OSLO"     alias="FAMIPOSLO"  >AMIP_CAM5%OSLO_CLM40%SP_CICE%PRES_DOCN%DOM_RTM_SGLC_SWAV</COMPSET>
-</file>
-The "CAM5%OSLO" options have to be defined, so a line like this is needed:
-<file>
-<CAM_CONFIG_OPTS compset="_CAM5%OSLO"     >-phys cam5 -cam_oslo aerlife</CAM_CONFIG_OPTS>
-</file>
-The compset needs a description, we also need the line
-<file>
-<desc compset="_CAM5%OSLO">cam 5 physcs and oslo aerosols</desc>
-</file>
-We could also define a specific use-case (namelist) for our compset. This would need a line like:
-<file>
- <CAM_NML_USE_CASE compset="_CAM5%OSLO"        >my_namelist</CAM_NML_USE_CASE>
-</file>
-This would only work if the file my_namelist.xml exists as
-<file>
-noresm/models/atm/cam/bld/namelist_files/use_cases/my_namelist.xml
-</file>
-===== Setting up a case with the new compset and building the model =====
-It should now be possible to create a new case directory, which we here name FAMIPOSLOtst
-and configure with 1 degree horizontal atmospheric resolution;
-<file>
-./create_newcase -case ../cases/FAMIPOSLOtst -compset FAMIPOSLO -mach hexagon -res f09_f09
-</file>
-and finally set up and compile the model:
-<file>
-cd ../cases/FAMIPOSLOtst
-</file>
-<file>
-./cesm_setup
-</file>
-<file>
-./FAMIPOSLOtst.build
-</file>
-===== Why does it work to change config_compsets.xml ?   =====
-In NorESM there are 3 new config-options for CAM:
-  * -cam-oslo aerlife (turns on transport of oslo tracers)
-  * -cam-oslo dirind  (turns on interaction with radiation)
-  * -cam-oslo warmclouds (turns on interaction with warm clouds)
-They change number of tracers and turn on different preprocessor flags in in a perl script called "configure", see:
-<file>
-models/atm/cam/bld/configure
-</file>
-To understand the implementation do:
-<file>
-svn diff -r 202 models/atm/cam/bld/configure
-</file>
-The new oslo-options also need to be defined, see
-<file>
-models/atm/cam/bld/config_files/definition.xml
-</file>
-To see how these new options were added, do:
-<file>
-svn diff -r 202 models/atm/cam/bld/config_files/definition.xml
-</file>