Changes between Version 25 and Version 26 of 2018WP/SharedActions/Status_dev_merge_2017_branch

Timestamp:

2018-02-21T15:03:45+01:00 (6 years ago)

Author:

davestorkey

Comment:

--

2018WP/SharedActions/Status_dev_merge_2017_branch

@@ -14 +14 @@
 ''For each new subject, please follow format as below (== for title level 2) in order to have them listed at top of page, and add SOLVED in the title when it is done.
 
-== 16 February 2018 : METO: eORCA1 and eORCA025 occasional failures with NaNs
+== 16 February 2018 : METO: eORCA1 and eORCA025 occasional failures with NaNs 
 
 I'm getting occasional failures with a segmentation fault in icb_ground in eORCA1 and eORCA025 built from the latest dev_merge_2017 branch (after several months of integration). I think icb_ground is acting as an error trap for NaN values produced in ice_dyn_rhg_evp. I will try to trace it back further next week. (Dave Storkey).
 
+'''Update 21 Feb:''' This looks like some kind of instability which doesn't get picked up by the checks in stp_ctl. There is very thick ice (~100m) at a single point which I think results in a divide-by-zero in sbc_isf_div. It looks different to the instability in the the 300 timestep ORCA2LIM3PIS_ST run in SETTE, which doesn't show any abnormally thick ice. 
 == 12 February 2018 : ORCA2_LIM3_PISCES with icebergs is not reproducible