In this chapter we describe how to run some special cases that take more than one step to do. The straightforward cases have compsets and/or build-namelist use-cases setup for them or require simple editing of a single-case. All of the cases here require you to do at least two simulations with different configurations, or require more complex editing of the case (changing the streams files).
The nine cases we will describe are:
Running with the prognostic crop model on
Running with the irrigation model on
Spinning up the Satellite Phenology Model (CLMSP spinup)
Spinning up the biogeochemistry Carbon-Nitrogen Model (CN spinup)
Spinning up the Carbon-Nitrogen Dynamic Global Vegetation Model (CNDV spinup)
Running with MOAR data as atmospheric forcing to spinup the model
Running with your own previous simulation as atmospheric forcing to spinup the model
Doing perturbation error growth tests
Running stand-alone CLM with transient historical CO2 concentration
The cases in this chapter are more sophisticated and require more technical knowledge and skill than cases in previous chapters. The user should be very familiar with doing simple cases before moving onto the cases described here.
In CLM4 in CESM1.0.3 a prognostic crop model was added to CLM4. The prognostic crop
model is setup to work with CN for present day conditions and we have surface
and initial condition datasets at f19 resolution. In order to use the initial condition
file, we need to set the
RUN_TYPE to startup rather
than hybrid since the compset for f19 sets up to use an initial
condition file without crop active. To activate the crop model we simply add "-crop on"
Example 4-1. Example Crop Simulation
> cd scripts > ./create_newcase -case CROP -res f19_g16 -compset ICN -mach yellowstone_intel > cd CROP # Append "-crop on" to