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does the simulation depend on run_startdate using compset F2010climo

Bing

Bing
New Member
Dear All,

I use CESM2.2. I created my cases using the compset F2010climo. Because the initial condition is fixed (cami-mam3_0000-01-01_0.9x1.25_L32_c141031.nc) and the boundary conditions (SST and SIC) and external forcings are climatology. I assume that the simulation is independent of the run_startdate, i.e. two independent integrations of the same duration should be exactly the same regardless of their run start dates.

For example, I run two cases, 2 years each, but one starts on 1998-01-01 and the other on 2017-01-01. I think these two cases should produce the same results even though they have different time stamps.

However, the results are not what I expected. There are significant differences between the two simulations.

Can anyone tell me what part I was not aware of?

Thank you!

Best,
Bing
 
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