Good afternoon all

I have set up a coupled configuration with OpenIFS 43r3 + NEMO and run a first year. After using CDO to convert the grib output to netCDF I see a lot of "wiggles" in the surface pressure. I did not see any of this in 40r1. I'm using Tco95 (O96) for 43r3 and TL159 (N80) for 40r1.

Is this normal behaviour? I would expect some more wiggles due to the lower spectral resolution in Tco95, but it's quite a lot. Maybe it gets even worse due to the higher grid-point resolution?

I'm attaching two snapshots of my surface pressure fields and attach my post processing script.

Many thanks for any help

/Joakim