# \#SBC **URL:** https://nemo-ocean.discourse.group/tag/sbc/99.md [Latest](https://nemo-ocean.discourse.group/latest.md) · [Categories](https://nemo-ocean.discourse.group/categories.md) · [Tags](https://nemo-ocean.discourse.group/tags.md) --- ## [When should I use freshwater budget option (fwb)?](https://nemo-ocean.discourse.group/t/when-should-i-use-freshwater-budget-option-fwb/860)
**Author:** [@db9608](https://nemo-ocean.discourse.group/u/db9608)\ **Replies:** 1\ **Last updated:** [24 March 2025 18:36 UTC](https://nemo-ocean.discourse.group/t/when-should-i-use-freshwater-budget-option-fwb/860 "2025-03-24T18:36:42Z")
I want to run the model for a long time(about 50 years). The model was stuck with a high sea surface height. So, I would like to use the fwb=1 option for this, but in what situations is this option typically used? I was… --- ## [NEMO\<-\>wave coupling: modified surface stress with ln\_taw and ln\_tauoc](https://nemo-ocean.discourse.group/t/nemo-wave-coupling-modified-surface-stress-with-ln-taw-and-ln-tauoc/788)
**Author:** [@r-hartmann](https://nemo-ocean.discourse.group/u/r-hartmann)\ **Replies:** 2\ **Last updated:** [2 December 2024 10:20 UTC](https://nemo-ocean.discourse.group/t/nemo-wave-coupling-modified-surface-stress-with-ln-taw-and-ln-tauoc/788 "2024-12-02T10:20:48Z")
Hi everyone, I have a question regarding the coupling of wave stress in NEMO. As I understand there are two options to do so: (i) component-wise with ln\_taw for u and v stress (on u- and v-grids). (ii) as fraction bas… --- ## [Restart inconsistencies when coupling water level (sea surface height analogon) to wave model](https://nemo-ocean.discourse.group/t/restart-inconsistencies-when-coupling-water-level-sea-surface-height-analogon-to-wave-model/774)
**Author:** [@r-hartmann](https://nemo-ocean.discourse.group/u/r-hartmann)\ **Replies:** 0\ **Last updated:** [25 October 2024 10:28 UTC](https://nemo-ocean.discourse.group/t/restart-inconsistencies-when-coupling-water-level-sea-surface-height-analogon-to-wave-model/774 "2024-10-25T10:28:27Z")
Hi everyone, I recognized some restart inconsistencies in the results external wave model when coupling the sea surface height / water level from NEMO to it via OASIS, if ln\_apr\_dyn=.true.. (which also will feedback to … --- ## [Help with fldread.F90 for surface boundary conditions](https://nemo-ocean.discourse.group/t/help-with-fldread-f90-for-surface-boundary-conditions/692)
**Author:** [@David](https://nemo-ocean.discourse.group/u/David)\ **Replies:** 2\ **Last updated:** [6 May 2024 09:21 UTC](https://nemo-ocean.discourse.group/t/help-with-fldread-f90-for-surface-boundary-conditions/692 "2024-05-06T09:21:12Z")
Hi all, I used to force my configuration with yearly climatological emp fields at daily frequency, which worked fine. Now I’m trying to go to fields at monthly frequency, making use of the time-interpolation implemente… --- ## [NEMO forced by WW3 outputs](https://nemo-ocean.discourse.group/t/nemo-forced-by-ww3-outputs/528)
**Author:** [@buffy](https://nemo-ocean.discourse.group/u/buffy)\ **Replies:** 0\ **Last updated:** [27 June 2023 05:10 UTC](https://nemo-ocean.discourse.group/t/nemo-forced-by-ww3-outputs/528 "2023-06-27T05:10:24Z")
Hello, Currently, I’m trying to insert wavewatch3 (ww3 v.6.07) outputs into 2-dimensional surge model based on NEMO v3.6. For this, I have to fill namsbc\_wave, but I’m wondering which ww3 outputs match to sn\_cdg (drag\_… --- ## [Surface boundary conditions](https://nemo-ocean.discourse.group/t/surface-boundary-conditions/462)
**Author:** [@isabella](https://nemo-ocean.discourse.group/u/isabella)\ **Replies:** 2\ **Last updated:** [14 April 2023 08:55 UTC](https://nemo-ocean.discourse.group/t/surface-boundary-conditions/462 "2023-04-14T08:55:33Z")
Hi, I have been working on getting NEMO4.2 running using ORCA025 configuration. Going from NEMO 4.0.4 to 4.2 there have been extensive changes to the sbcblk.F90 module. Have people seen much impact from the change to th… --- ## [\[v4.2.x\] Crash in reading namelist \`namsbc\_blk\`](https://nemo-ocean.discourse.group/t/v4-2-x-crash-in-reading-namelist-namsbc-blk/379)
**Author:** [@robinson](https://nemo-ocean.discourse.group/u/robinson)\ **Replies:** 4\ **Last updated:** [28 October 2022 10:02 UTC](https://nemo-ocean.discourse.group/t/v4-2-x-crash-in-reading-namelist-namsbc-blk/379 "2022-10-28T10:02:46Z")
Hei alla, I get this crash for unknown reasons when launching Nemo 4.2: misspelled variable in namelist namsbc\_blk in configuration namelist iostat = 19 Although I did not change anything to the namelists… Any id… --- ## [\[v4.2.x\] Computation errors for Lupkes parameterization in \*sbcblk\_algo\_ice\_cdn.F90\*](https://nemo-ocean.discourse.group/t/v4-2-x-computation-errors-for-lupkes-parameterization-in-sbcblk-algo-ice-cdn-f90/298)
**Author:** [@vguemas](https://nemo-ocean.discourse.group/u/vguemas)\ **Replies:** 2\ **Last updated:** [13 May 2022 14:38 UTC](https://nemo-ocean.discourse.group/t/v4-2-x-computation-errors-for-lupkes-parameterization-in-sbcblk-algo-ice-cdn-f90/298 "2022-05-13T14:38:27Z")
Hi, In routine sbcblk\_algo\_ice\_cdn.F90, l. 86 computes equation (31) of Lupkes et al (2012) which gives Sc\*Sc rather than not Sc. Hence, when the result is used in l.106, zSc should be used instead of zSc\*zSc. The same … --- ## [\[v4.2.x\]\[v4.0.x\] Wrong calculation of \`zcoef\` in \*sbcssm.f90\*](https://nemo-ocean.discourse.group/t/v4-2-x-v4-0-x-wrong-calculation-of-zcoef-in-sbcssm-f90/252)
**Author:** [@vguemas](https://nemo-ocean.discourse.group/u/vguemas)\ **Replies:** 2\ **Last updated:** [30 March 2022 07:24 UTC](https://nemo-ocean.discourse.group/t/v4-2-x-v4-0-x-wrong-calculation-of-zcoef-in-sbcssm-f90/252 "2022-03-30T07:24:07Z")
I have noticed a very minor bug in sbcssm.F90 L.225 : zcoef = REAL( nn\_fsbc - 1, wp ) / zf\_sbc should be : zcoef = REAL( nn\_fsbc - 1, wp ) / ( zf\_sbc - 1) Changing the frequency of call to SI³ is very rare and the e… --- ## [\[NEC\] Wrong time indexing while using \`ln\_apr\_dyn\` with monthly forcing](https://nemo-ocean.discourse.group/t/nec-wrong-time-indexing-while-using-ln-apr-dyn-with-monthly-forcing/96)
**Author:** [@janna](https://nemo-ocean.discourse.group/u/janna)\ **Replies:** 6\ **Last updated:** [2 July 2021 08:10 UTC](https://nemo-ocean.discourse.group/t/nec-wrong-time-indexing-while-using-ln-apr-dyn-with-monthly-forcing/96 "2021-07-02T08:10:31Z")
Dear all, I’m using NEMO r4.0.2 as a stand alone model forced by monthly atmospheric files with time frequency of 1h. The input files have different length, for example with number of records = 672 in February and 744 i…