Issue with interpolation with interpcdo
Hi,
in the interpolation with earthdiagnostics we (my self and other collegues) are facing some problems. This problem may be due to the fact that the data on orca grid " have an extra column on the left and right side. These contain a replication of the second and second last column. This hides the cyclic interpolation over the edges. A similar problem concerns the first and last row. With selindexbox these columns and rows can be removed" (cit from cdo forum) and it is a known problem for some models: https://code.mpimet.mpg.de/boards/1/topics/8676.
But we never changed the orca grid, so how comes that in the past we did not have this problem?
We discussed about it with @rfernand and realized that it is probably due to the CDO version used on nord3.
On nord3 there is v1.9.8, while on the WSs the default cdo version is 1.6.3.
Here an exammple of interpolation done with earthdiagnostics:
and here an example of interpolated done offline on nord3 with CDO, with the trim of the extra orca band:
Note that these two plots are an example, they are from 2 different years and runs.
It is quite important we fix it.
thank you
FYI: @acarreri @portega @jacosta @vlapin @mgalitap @jllort @eexarchou
This issue is related to this: https://earth.bsc.es/gitlab/es/requests/-/issues/1563 and #139