missing east and north bmask in obcini

[dupontf]

This must be very minor, but I have noticed that bmask definitions for east and north boundaries have disappeared from the new NEMO3.2 obcini.F90 (no tag). Is it because they are no longer necessary?

Fred.

[molines]

Hi Fred,

bmask was used only for rigid lid configurations. This option has been removed in nemo_3.2 and thus bmask is not used anymore (anywhere in the code).

Jean-Marc

[molines]

Replying to molines:

Hi Fred,

bmask was used only for rigid lid configurations. This option has been removed in nemo_3.2 and thus bmask is not used anymore (anywhere in the code).

Jean-Marc

Sorry ! I did a mistake. bmask is still used, in the elliptic solver. The missing bmask correction for North and East boundary is clearly a mistake that should be corrected.

Jean-Marc

[molines]

obcini.F90 with bug fix for bmask and nbobc

[molines]

I attached to this ticket a corrected version for obcini.F90. It fixes :

• bmask correction for East and North boundaries (mentioned by Fred up there). This in fact was a severe bug that was blowing up the model at the very first step in case of eastern or northern OBC's.
• in 3.2, nbobc is initialized to nn_nbobc (which is supposed to be a namelist parameter, but which in fact is not ! ) nbobc is just a counter of Open Boundaries, computed within obcini and just used for diagnostic. No reason for nn_nbobc.

Jean-Marc