# Global **URL:** https://nemo-ocean.discourse.group/c/configurations/global/18.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 Global category](https://nemo-ocean.discourse.group/t/about-the-global-category/271)
**Author:** [@nemo-ocean](https://nemo-ocean.discourse.group/u/nemo-ocean)\ **Replies:** 0
--- ## [\[v5.0.x\] bug in the execution of iom\_init in ORCA2\_ICE\_PISCES and X3\_ORCA2\_ICE\_PISCES](https://nemo-ocean.discourse.group/t/v5-0-x-bug-in-the-execution-of-iom-init-in-orca2-ice-pisces-and-x3-orca2-ice-pisces/1047)
**Author:** [@vsciortino](https://nemo-ocean.discourse.group/u/vsciortino)\ **Replies:** 0\ **Last updated:** [17 September 2026 09:18 UTC](https://nemo-ocean.discourse.group/t/v5-0-x-bug-in-the-execution-of-iom-init-in-orca2-ice-pisces-and-x3-orca2-ice-pisces/1047 "2026-09-17T09:18:36Z")
I compiled ORCA2\_ICE\_PISCES using the Intel OneAPI compilers 2024.1.0 on Leonardo CINECA, and in particular “mpiifx”; I used these flags in the cpp\_ORCA2\_ICE\_PISCES.fcm bld::tool::fppkeys key\_si3 key\_top key\_xios key\_… --- ## [How to get XIOS2 and XIOS3 Library](https://nemo-ocean.discourse.group/t/how-to-get-xios2-and-xios3-library/1029)
**Author:** [@subrat](https://nemo-ocean.discourse.group/u/subrat)\ **Replies:** 4\ **Last updated:** [18 June 2026 17:45 UTC](https://nemo-ocean.discourse.group/t/how-to-get-xios2-and-xios3-library/1029 "2026-06-18T17:45:31Z")
Hi everyone, I am working on a project, an ocean analysis system, for which I need to build NEMO5. On the NEMO official site, it states that XIOS2 and XIOS3 can be downloaded via Subversion (SVN), but SVN no longer exi… --- ## [Diamlr output for AGRIF configurations](https://nemo-ocean.discourse.group/t/diamlr-output-for-agrif-configurations/1015)
**Author:** [@lmock](https://nemo-ocean.discourse.group/u/lmock)\ **Replies:** 1\ **Last updated:** [20 May 2026 13:42 UTC](https://nemo-ocean.discourse.group/t/diamlr-output-for-agrif-configurations/1015 "2026-05-20T13:42:21Z")
Hi! We’re running AGRIF-configurations with tidal constituents and want to write the analysis output diamlr. For an eORCA025 configuration this worked (like in the AMM12 example), but we can’t make it work for the AGRI… --- ## [Help to find grids ORCA025 and ORCA12](https://nemo-ocean.discourse.group/t/help-to-find-grids-orca025-and-orca12/536)
**Author:** [@elsy](https://nemo-ocean.discourse.group/u/elsy)\ **Replies:** 8\ **Last updated:** [17 April 2026 12:40 UTC](https://nemo-ocean.discourse.group/t/help-to-find-grids-orca025-and-orca12/536 "2026-04-17T12:40:37Z")
Dear all, I tried to download the ORCA025 and ORCA12 grids, but I couldn’t find them anywhere online. Could you please help me by telling me where I can find these files to download or whom I can ask for them? Thank you… --- ## [Looking for the exact ORCA025.L75 static/grid files consistent with ORAS5](https://nemo-ocean.discourse.group/t/looking-for-the-exact-orca025-l75-static-grid-files-consistent-with-oras5/1002)
**Author:** [@toto](https://nemo-ocean.discourse.group/u/toto)\ **Replies:** 1\ **Last updated:** [16 March 2026 10:21 UTC](https://nemo-ocean.discourse.group/t/looking-for-the-exact-orca025-l75-static-grid-files-consistent-with-oras5/1002 "2026-03-16T10:21:24Z")
Hi everyone! I am trying to compute AMOC-related diagnostics from ORAS5 on the native 0.25° grid, and I am currently stuck on identifying the correct static/grid files that should be used together with it. From the ECMW… --- ## [Get ORCA025 coordinate file](https://nemo-ocean.discourse.group/t/get-orca025-coordinate-file/932)
**Author:** [@laetis](https://nemo-ocean.discourse.group/u/laetis)\ **Replies:** 2\ **Last updated:** [6 March 2026 16:22 UTC](https://nemo-ocean.discourse.group/t/get-orca025-coordinate-file/932 "2026-03-06T16:22:14Z")
Hi, I am looking for the coordinate file for ORCA025 configuration. Following the recommendation I found on this forum, I tried both on https://gws-access.ceda.ac.uk/public/nemo/runs/ and https://ige-meom-opendap.univ-… --- ## [Agrif setup with eOrca 1 configuration](https://nemo-ocean.discourse.group/t/agrif-setup-with-eorca-1-configuration/996)
**Author:** [@francesco.tuccia](https://nemo-ocean.discourse.group/u/francesco.tuccia)\ **Replies:** 1\ **Last updated:** [6 March 2026 14:23 UTC](https://nemo-ocean.discourse.group/t/agrif-setup-with-eorca-1-configuration/996 "2026-03-06T14:23:49Z")
Good afternoon everyone, I am trying to set up an AGRIF zoom in the eORCA1 configuration that I usually run, but I am facing several problems. I am following the Nemo AGRIF User-guide. In case you want to try to reprodu… --- ## [Information regarding the ORCA 2 degree grid](https://nemo-ocean.discourse.group/t/information-regarding-the-orca-2-degree-grid/638)
**Author:** [@whuiskamp](https://nemo-ocean.discourse.group/u/whuiskamp)\ **Replies:** 2\ **Last updated:** [7 March 2024 15:03 UTC](https://nemo-ocean.discourse.group/t/information-regarding-the-orca-2-degree-grid/638 "2024-03-07T15:03:31Z")
Hi everyone, I am currently working with the people at NCAR to develop new grid configurations for MOM6 (bear with me), however their preferred grid generation workflow is to use ORCA tools. On that note, does anyone ha… --- ## [Duplicated north cells with jperio == 4](https://nemo-ocean.discourse.group/t/duplicated-north-cells-with-jperio-4/504)
**Author:** [@cpelletier](https://nemo-ocean.discourse.group/u/cpelletier)\ **Replies:** 4\ **Last updated:** [12 May 2023 12:37 UTC](https://nemo-ocean.discourse.group/t/duplicated-north-cells-with-jperio-4/504 "2023-05-12T12:37:04Z")
Hi, On our eORCA025 config, NEMO v4.0.1 with jperio == 4. The first two and last two columns (x dims) are the same due to east-west cyclicity. Then, my understanding is that each wet cell on the j == jpjglo row has exa… --- ## [QG Leith viscosity implementation](https://nemo-ocean.discourse.group/t/qg-leith-viscosity-implementation/377)
**Author:** [@tmwilder](https://nemo-ocean.discourse.group/u/tmwilder)\ **Replies:** 7\ **Last updated:** [9 January 2023 14:28 UTC](https://nemo-ocean.discourse.group/t/qg-leith-viscosity-implementation/377 "2023-01-09T14:28:30Z")
Hi all, I am currently attempting to implement the QG Leith viscous coefficient in nemo v4.0.4. The choice of v4.0.4 is because there is an ORCA025 setup ready to go, which is not yet the case for v4.2. I am also new to… --- ## [ORCA partial vertical grid](https://nemo-ocean.discourse.group/t/orca-partial-vertical-grid/389)
**Author:** [@dramauh](https://nemo-ocean.discourse.group/u/dramauh)\ **Replies:** 0\ **Last updated:** [8 November 2022 03:40 UTC](https://nemo-ocean.discourse.group/t/orca-partial-vertical-grid/389 "2022-11-08T03:40:37Z")
Dear Community, I am closing the Arctic volume budget with the transports and the surface freshwater input (precipitation, runoff, melting, evaporation) from CMIP6 EC-Earth3 (NEMO3.6) model data. I used the variables um… --- ## [Rotate u and v model grid to regular lat lon grid](https://nemo-ocean.discourse.group/t/rotate-u-and-v-model-grid-to-regular-lat-lon-grid/384)
**Author:** [@dramauh](https://nemo-ocean.discourse.group/u/dramauh)\ **Replies:** 2\ **Last updated:** [29 October 2022 06:02 UTC](https://nemo-ocean.discourse.group/t/rotate-u-and-v-model-grid-to-regular-lat-lon-grid/384 "2022-10-29T06:02:29Z")
Dear Community, I would like to rotate the velocity components to the regular lat lon grid. I think I need to use this expression u\_{latlon} = u\_{rot} \\cos \\alpha - v\_{rot} \\sin \\alpha \\\\ v\_{latlon} = u\_{rot} \\sin \\a… --- ## [Hourly output when running ORCA025](https://nemo-ocean.discourse.group/t/hourly-output-when-running-orca025/348)
**Author:** [@fcocetta](https://nemo-ocean.discourse.group/u/fcocetta)\ **Replies:** 3\ **Last updated:** [25 August 2022 14:19 UTC](https://nemo-ocean.discourse.group/t/hourly-output-when-running-orca025/348 "2022-08-25T14:19:49Z")
Dear all, I run experiments with ORCA025 configuration and I have recently faced problems when setting “1h” as output frequency (both with instantaneous and average output values). The simulation is OK and no problems … --- ## [Coupling two hemispheric SI³ with ocean via OASIS](https://nemo-ocean.discourse.group/t/coupling-two-hemispheric-si-with-ocean-via-oasis/247)
**Author:** [@emalod](https://nemo-ocean.discourse.group/u/emalod)\ **Replies:** 1\ **Last updated:** [25 March 2022 10:59 UTC](https://nemo-ocean.discourse.group/t/coupling-two-hemispheric-si-with-ocean-via-oasis/247 "2022-03-25T10:59:29Z")
The NEMO-SI³ configuration can already be split into two separated executables and coupled via OASIS. The resulting modularity helps to enhance computing performance. In this new configuration, SI³ - in Stand Alone Surf… --- ## [ORCA12 configurations](https://nemo-ocean.discourse.group/t/orca12-configurations/216)
**Author:** [@fmasson](https://nemo-ocean.discourse.group/u/fmasson)\ **Replies:** 5\ **Last updated:** [27 February 2022 19:52 UTC](https://nemo-ocean.discourse.group/t/orca12-configurations/216 "2022-02-27T19:52:32Z")
Dear all, At UCLouvain we are aiming at producing a stand-alone (ERA5-forced or similar) ocean-sea ice simulation covering the satellite era (1979-now) by the end of this year. Currently, we have NEMO4.0.7 configuration… --- ## [How to spin-up ORCA2\_ICE\_PISCES from restart files, even with icebergs](https://nemo-ocean.discourse.group/t/how-to-spin-up-orca2-ice-pisces-from-restart-files-even-with-icebergs/213)
**Author:** [@Jin](https://nemo-ocean.discourse.group/u/Jin)\ **Replies:** 4\ **Last updated:** [17 February 2022 02:46 UTC](https://nemo-ocean.discourse.group/t/how-to-spin-up-orca2-ice-pisces-from-restart-files-even-with-icebergs/213 "2022-02-17T02:46:18Z")
Dear all, Hello, I am a beginner. I’m trying to spin-up ORCA2\_ICE\_PISCES from restart files(during about 150-200 years). I have some question. Question on restart files After NEMO has run for 1 year, a series of res… --- ## [ORCA2 simulation produces noisy tracer fields](https://nemo-ocean.discourse.group/t/orca2-simulation-produces-noisy-tracer-fields/111)
**Author:** [@Andrea](https://nemo-ocean.discourse.group/u/Andrea)\ **Replies:** 2\ **Last updated:** [6 September 2021 14:13 UTC](https://nemo-ocean.discourse.group/t/orca2-simulation-produces-noisy-tracer-fields/111 "2021-09-06T14:13:36Z")
Hello, running some technical tests with ORCA2 and NEMO 4.0.6 we realized that after a few months tracer output fields become unrealistically noisy in the Tropics west off South America (see figure attached for 5-daily …