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Slab ocean with WACCM

Hello I want to run a simulation using CESM 1.0.4 which combines the WACCM atmospheric model, the land active land CL and a slab ocean. Does anyone know what changes must I make in the source code to achieve this? Also does anyone know what resolutions should the datasets have so that they can run together? Thank you in advance for the help,Beth
 

dbailey

CSEG and Liaisons
Staff member
I would highly recommend that you read the FAQ on the SOM. I will also cross-post this to the WACCM forum in case others have done this.https://bb.cgd.ucar.edu/faq-data-ocean-slab-mode-docn-somDave
 

dbailey

CSEG and Liaisons
Staff member
I would highly recommend that you read the FAQ on the SOM. I will also cross-post this to the WACCM forum in case others have done this.https://bb.cgd.ucar.edu/faq-data-ocean-slab-mode-docn-somDave
 
Thank you very much for the information Dave, and for cross-posting it in the WACCM forum.I read the link that you posted, however it does not entirely answer my question. In the link that you posted it is mentioned that:8. What compsets is the DOCN-SOM used in?"The E compset with fully active atmosphere, land, and sea ice components uses the DOCN-SOM component as does the active ice only compset (D)."Does that meant that it is not at all possible to combine WACCM and SOM? I read somewhere that it is possible to create you own compset, so theoreticall it should be possible since CESM is a "plug and play" software where you can activate/deactivate different components. I would of course need to run the model until it reached an equilibrium before I could make any changes to it for my research. For my simulation I need to the ocean to reach an equilibrium relatively fast, therefore using an active ocean is not an option. It is a tidally locked Earth stratosphere simulation and I need a slab ocean for the model to be self-consistent.
 
Thank you very much for the information Dave, and for cross-posting it in the WACCM forum.I read the link that you posted, however it does not entirely answer my question. In the link that you posted it is mentioned that:8. What compsets is the DOCN-SOM used in?"The E compset with fully active atmosphere, land, and sea ice components uses the DOCN-SOM component as does the active ice only compset (D)."Does that meant that it is not at all possible to combine WACCM and SOM? I read somewhere that it is possible to create you own compset, so theoreticall it should be possible since CESM is a "plug and play" software where you can activate/deactivate different components. I would of course need to run the model until it reached an equilibrium before I could make any changes to it for my research. For my simulation I need to the ocean to reach an equilibrium relatively fast, therefore using an active ocean is not an option. It is a tidally locked Earth stratosphere simulation and I need a slab ocean for the model to be self-consistent.
 
I also intend to conduct the WACCm with a slab ocean, but I have no idea how to combine them together. Have you solved this preblem and can you give me some suggestions? thanks! 
 
I also intend to conduct the WACCm with a slab ocean, but I have no idea how to combine them together. Have you solved this preblem and can you give me some suggestions? thanks! 
 
I also intend to conduct the WACCm with a slab ocean, but I have no idea how to combine them together. Have you solved this preblem and can you give me some suggestions? thanks! 
 
I also intend to conduct the WACCm with a slab ocean, but I have no idea how to combine them together. Have you solved this preblem and can you give me some suggestions? thanks! 
 

andrew

Member
As discussed you will want to configure a comp set for SOM, and then modify the atmosphere model by using a change to the cam configure command to use a WACCM configuration, rather than a standard CAM configuration. This will give you a fully active atmosphere in the WACCM configuration with a SOM. I do not know whether this will work, as it is not a supported configuration, but it should work in principle. 
 

andrew

Member
As discussed you will want to configure a comp set for SOM, and then modify the atmosphere model by using a change to the cam configure command to use a WACCM configuration, rather than a standard CAM configuration. This will give you a fully active atmosphere in the WACCM configuration with a SOM. I do not know whether this will work, as it is not a supported configuration, but it should work in principle. 
 
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