New URL for NEMO forge!   http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.
#2081 (time splitting and isf: bugs) – NEMO

Opened 4 years ago

Closed 4 years ago

Last modified 8 months ago

#2081 closed Bug (fixed)

time splitting and isf: bugs

Reported by: mathiot Owned by: mathiot
Priority: low Milestone: 2018 release-4.0
Component: OCE Version: trunk
Severity: minor Keywords: EEN ISF OPA time-splitting v4.0
Cc:

Description (last modified by nicolasmartin)

Context

In the trunk, 3 bugs were found recently with time splitting and ice shelf:

  • bug1: the mask used to compute the average ht_n was wrong (0 under ice shelf). It affects run done with isf+time-splitting+een. Tests with ISOMIP show a negligeable impact (difference of ~1e-7 in ssh_max after 30 years). Corrected in dev_merge_2017 r9546 (gm)
  • bug2 :the mask used to compute the new depth at velocity point was wrong (0 under ice shelf). It affects run done with isf+time-splitting+flux-form. Test with ISOMIP show a 10% decrease of moc and stream function below the ice shelf when the bug is corrected (see attachment). Corrected in dev_merge_2017 r9554
  • bug3 :the mask used to mask ubaro is wrong (0 below an ice shelf). It only affect the output. Corrected in dev_merge_2017 r9554

In version 3.6_stable, the use of time-splitting with ice shelf is not possible (protected by a stop).

Commit History (0)

(No commits)

Change History (3)

comment:1 Changed 4 years ago by mathiot

  • Resolution set to fixed
  • Status changed from new to closed

comment:2 Changed 4 years ago by nicolasmartin

  • Description modified (diff)

comment:3 Changed 8 months ago by nemo

  • Keywords OPA v4.0 added
Note: See TracTickets for help on using tickets.