is STFLUX and BTFLUX necessary?

[wuhe]

hi, i am a beginner to ROMS, and i was try to modify some cpp file included in src, for example,"#define btflux " to "#undef btflux",and then some error happened "
READ_PHYPAR - could not find input file: ocean_frc.nc

Elapsed CPU time (seconds):

Thread # 0 CPU: 0.125
Total: 0.125

Nonlinear model elapsed time profile:

Total: 0.000 0.0000

All percentages are with respect to total time = 0.125

ROMS/TOMS - Output NetCDF summary for Grid 01:

ROMS/TOMS - I/O error ............... exit_flag: 4


ERROR: I/O related problem.
is BTFLUX and STFLUX necessary
is the variable T(temperature) necessary?

[kate]

If you have a tracer in the model, you will need to provide surface and bottom fluxes for it. Tracers could be temperature, salinity, passive tracers, etc. Most are assumed to have zero flux at the bottom, perhaps also at the surface. Usual practice is to have at least one active tracer which enters into the equations of state for computing density. I don't know if ROMS can be run without any active tracers - except with SOLVE3D turned off. What are you trying to do?

[linzhenhua]

I have had the same problem for idealized simulations.

In ROMS, even you do not need surface heat or momentum flux, you have to explicitly define it and set it's value to zero.