Dear OpenIFS experts,
I am Abhishek and am very new to using the OpenIFS model, and have a question regarding the SST forcing we use to force the OPenIFS model (i.e., atmospheric components). So, I ran two simulations with the Tco95 OpenIFS configuration with different time steps, namely 1 hour and 30 minutes. Interestingly, when I compare the SST that is saved as a model output in both simulations (monthly only), there are some differences between them, which do not make any sense to me at all. I mean, why does the SST forcing change between these two simulations? According to my experience, SST should be the same between these two simulations because both simulations were forced with SST forcing. I am also attaching the figure in which you can see the changes are noisier and can mostly be seen in the Southern Ocean. I would really appreciate it if somebody could give some rationale behind it. Many thanks in advance.
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