# \#scm-configuration-and-namelist

**URL:** https://forum.ecmwf.int/tag/scm-configuration-and-namelist/134.md

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## [Scm with fixed solar radiation](https://forum.ecmwf.int/t/scm-with-fixed-solar-radiation/12157)

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**Author:** [@Miriam\_Saraceni](https://forum.ecmwf.int/u/Miriam_Saraceni)\
**Replies:** 2\
**Last updated:** [10 February 2020 13:22 UTC](https://forum.ecmwf.int/t/scm-with-fixed-solar-radiation/12157 "2020-02-10T13:22:53Z")

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Hi all, I would like to change the Single column model source code in order to run the model with constant and fixed radiation from the sun, avoiding diurnal cycle. By looking at the source code for the radiation i…

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## [Namelist...list](https://forum.ecmwf.int/t/namelist-list/12114)

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**Author:** [@Jareth\_Holt](https://forum.ecmwf.int/u/Jareth_Holt)\
**Replies:** 5\
**Last updated:** [4 April 2019 13:56 UTC](https://forum.ecmwf.int/t/namelist-list/12114 "2019-04-04T13:56:13Z")

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Hi everyone, I'm new to OpenIFS and I'm trying to get to grips with it. I just started a project using EC-Earth (for which IFS is the atmospheric component), in particular the coupled single-column model (which uses Ope…

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## [Resolution of SCM](https://forum.ecmwf.int/t/resolution-of-scm/12159)

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**Author:** [@Victoria\_Sinclair](https://forum.ecmwf.int/u/Victoria_Sinclair)\
**Replies:** 3\
**Last updated:** [23 March 2017 16:41 UTC](https://forum.ecmwf.int/t/resolution-of-scm/12159 "2017-03-23T16:41:46Z")

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In the namelist which comes with the test case for the SCM, the variable NSMAX (the maximum truncation) is set to 159. Does this some-how reflect the horizontal resolution (size) of the SCM? Also is it a good idea to …

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## [Name of input and output files for SCM](https://forum.ecmwf.int/t/name-of-input-and-output-files-for-scm/12104)

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**Author:** [@Victoria\_Sinclair](https://forum.ecmwf.int/u/Victoria_Sinclair)\
**Replies:** 1\
**Last updated:** [8 March 2017 17:01 UTC](https://forum.ecmwf.int/t/name-of-input-and-output-files-for-scm/12104 "2017-03-08T17:01:18Z")

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By default, I think the input file name must be scm\_in.nc. Is this correct? Is there any namelist option to change this? Or anyway to have the input data in a different directory to where you run the model? Also is the …