# Regional **URL:** https://nemo-ocean.discourse.group/c/configurations/regional/19.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) --- ## [About the Regional category](https://nemo-ocean.discourse.group/t/about-the-regional-category/272)
**Author:** [@nemo-ocean](https://nemo-ocean.discourse.group/u/nemo-ocean)\ **Replies:** 0
--- ## [Structure of open boundaries](https://nemo-ocean.discourse.group/t/structure-of-open-boundaries/72)
**Author:** [@marilianemo](https://nemo-ocean.discourse.group/u/marilianemo)\ **Replies:** 29\ **Last updated:** [21 September 2026 08:57 UTC](https://nemo-ocean.discourse.group/t/structure-of-open-boundaries/72 "2026-09-21T08:57:06Z")
Dear all, I’m trying to run NEMOv4.0\_PISCES-v2 in an offline mode for a regional configuration. I have two open boundaries (W,E) and set then in namelist\_cfg as &nambdy\_index ! structured open boundaries definition … --- ## [Support for orthogonal curvilinear grid?](https://nemo-ocean.discourse.group/t/support-for-orthogonal-curvilinear-grid/742)
**Author:** [@milicak](https://nemo-ocean.discourse.group/u/milicak)\ **Replies:** 5\ **Last updated:** [12 December 2024 11:50 UTC](https://nemo-ocean.discourse.group/t/support-for-orthogonal-curvilinear-grid/742 "2024-12-12T11:50:02Z")
Hi, I don’t think, I’ve seen a setup yet for NEMO which is using orthongal conformal horizontal grid (see attached figure). Does NEMO support if I created a conformal grid and its domain\_cfg file manually. I’ve seen t… --- ## [SSS damping (nn\_sssr=1 or 2) when using the non-linear free surface?](https://nemo-ocean.discourse.group/t/sss-damping-nn-sssr-1-or-2-when-using-the-non-linear-free-surface/726)
**Author:** [@Claude](https://nemo-ocean.discourse.group/u/Claude)\ **Replies:** 6\ **Last updated:** [5 August 2024 07:59 UTC](https://nemo-ocean.discourse.group/t/sss-damping-nn-sssr-1-or-2-when-using-the-non-linear-free-surface/726 "2024-08-05T07:59:25Z")
Hi, Until recently I was applying a SSS damping using the option nn\_sssr=2 combined to the linear free surface. I’m using a regional configuration in which ocean and sea-ice components are coupled. Now I’ve switched to… --- ## [Wrong coordinates values over some areas](https://nemo-ocean.discourse.group/t/wrong-coordinates-values-over-some-areas/129)
**Author:** [@Bijoy](https://nemo-ocean.discourse.group/u/Bijoy)\ **Replies:** 10\ **Last updated:** [12 October 2021 04:34 UTC](https://nemo-ocean.discourse.group/t/wrong-coordinates-values-over-some-areas/129 "2021-10-12T04:34:38Z")
Hi list, I am using NEMO4 r4.0.6 with XIOS 2.5 to build a regional model. While checking the model output, seems that the nav\_lon and nav\_lat coordinates has weird values over some areas (figs attached). The coordinate … --- ## [URL for SIREN demo input files?](https://nemo-ocean.discourse.group/t/url-for-siren-demo-input-files/225)
**Author:** [@Leo](https://nemo-ocean.discourse.group/u/Leo)\ **Replies:** 4\ **Last updated:** [25 August 2022 10:07 UTC](https://nemo-ocean.discourse.group/t/url-for-siren-demo-input-files/225 "2022-08-25T10:07:46Z")
Dear all, I am trying to set up regional configuration with NEMO using SIREN.I found that refman.pdf in SIREN show how to use it. But the question is the link to download input files of examples are out of date. I have … --- ## [How to make AMM12 compliant with AGRIF](https://nemo-ocean.discourse.group/t/how-to-make-amm12-compliant-with-agrif/334)
**Author:** [@m-n-o](https://nemo-ocean.discourse.group/u/m-n-o)\ **Replies:** 2\ **Last updated:** [25 July 2022 12:58 UTC](https://nemo-ocean.discourse.group/t/how-to-make-amm12-compliant-with-agrif/334 "2022-07-25T12:58:48Z")
Hi. I’m trying to compile configuration, referenced to AMM12 with AGRIF via command $ ./makenemo -m 'gfortran\_test' -r 'AMM12' -n 'Nesting\_test' add\_key 'key\_agrif' Configuration building process is failed with an err… --- ## [New regional configuration setup: open boundaries](https://nemo-ocean.discourse.group/t/new-regional-configuration-setup-open-boundaries/37)
**Author:** [@Franziska](https://nemo-ocean.discourse.group/u/Franziska)\ **Replies:** 24\ **Last updated:** [21 October 2021 10:37 UTC](https://nemo-ocean.discourse.group/t/new-regional-configuration-setup-open-boundaries/37 "2021-10-21T10:37:29Z")
Dear all, I’m trying to set up a new regional configuration with open boundaries, using release 4.0.5. (Probably switching to 4.2\_RC as soon as available.) After quite some testing there are remaining questions, for wh… --- ## [XIOS warning: \`domain grid\_T does not have overlapped regions between processes\`](https://nemo-ocean.discourse.group/t/xios-warning-domain-grid-t-does-not-have-overlapped-regions-between-processes/135)
**Author:** [@marilianemo](https://nemo-ocean.discourse.group/u/marilianemo)\ **Replies:** 4\ **Last updated:** [25 October 2021 12:38 UTC](https://nemo-ocean.discourse.group/t/xios-warning-domain-grid-t-does-not-have-overlapped-regions-between-processes/135 "2021-10-25T12:38:11Z")
Dear all, I run PISCES using v4.0.6 with XIOS 2.5. The configuration has 797 procs (jpni x jpnj = 32 x 52) and the output fields look correct. However, I get the following message in the out.log file: info : If domain … --- ## [Open boundary tracer: TEOS10 cons. temperature, abs. salinity and conversion function to prac. salinity](https://nemo-ocean.discourse.group/t/open-boundary-tracer-teos10-cons-temperature-abs-salinity-and-conversion-function-to-prac-salinity/80)
**Author:** [@Bijoy](https://nemo-ocean.discourse.group/u/Bijoy)\ **Replies:** 3\ **Last updated:** [24 June 2021 14:29 UTC](https://nemo-ocean.discourse.group/t/open-boundary-tracer-teos10-cons-temperature-abs-salinity-and-conversion-function-to-prac-salinity/80 "2021-06-24T14:29:59Z")
Hi all, I am using the TEOS-10 in a regional configuration of NEMO4.0.6. It is clear that the model should be initialised with the conservative temperature and absolute salinity. If we use TEOS-10, does the tracer field…