# \#post-processing

**URL:** https://forum.croco-ocean.org/tag/post-processing/12.md

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## [A diagnostic-output bug and a verified fix for CROCO v.2.1.3 (released April 2026)](https://forum.croco-ocean.org/t/a-diagnostic-output-bug-and-a-verified-fix-for-croco-v-2-1-3-released-april-2026/7691)

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**Author:** [@rahulpai](https://forum.croco-ocean.org/u/rahulpai)\
**Replies:** 1\
**Last updated:** [September 18, 2026, 7:44am UTC](https://forum.croco-ocean.org/t/a-diagnostic-output-bug-and-a-verified-fix-for-croco-v-2-1-3-released-april-2026/7691 "2026-09-18T07:44:49Z")

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Hi everyone, I would like to report a diagnostic-output bug and a verified fix for CROCO v.2.1.3 (released April 2026), which we encountered while running a regional configuration of the Arabian Gulf using the BULK\_FLUX…

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## [Extracting time series using xcroco/xgcm from multiple CROCO NetCDF files](https://forum.croco-ocean.org/t/extracting-time-series-using-xcroco-xgcm-from-multiple-croco-netcdf-files/7658)

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**Author:** [@Jellyfish](https://forum.croco-ocean.org/u/Jellyfish)\
**Replies:** 15\
**Last updated:** [June 4, 2026, 5:19am UTC](https://forum.croco-ocean.org/t/extracting-time-series-using-xcroco-xgcm-from-multiple-croco-netcdf-files/7658 "2026-06-04T05:19:44Z")

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Hello, I am working with CROCO outputs and using the xcroco/xgcm workflow to extract time series for comparison with buoy observations. My goal is to extract time series of variables such as temperature, salinity, and …

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## [Xcroco question](https://forum.croco-ocean.org/t/xcroco-question/7517)

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**Author:** [@Jellyfish](https://forum.croco-ocean.org/u/Jellyfish)\
**Replies:** 8\
**Last updated:** [January 6, 2026, 1:17pm UTC](https://forum.croco-ocean.org/t/xcroco-question/7517 "2026-01-06T13:17:03Z")

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Hi, I am currently trying to use Xcroco from croco\_pytools-v2.0.1 and I encountered an issue regarding a missing variable. Since I am using the default outputs from CROCO, I selected croco\_native as the model in xcroco…

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## [SST in NetCDF output vs post-processing](https://forum.croco-ocean.org/t/sst-in-netcdf-output-vs-post-processing/7501)

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**Author:** [@cmazoyer](https://forum.croco-ocean.org/u/cmazoyer)\
**Replies:** 2\
**Last updated:** [November 24, 2025, 1:25pm UTC](https://forum.croco-ocean.org/t/sst-in-netcdf-output-vs-post-processing/7501 "2025-11-24T13:25:28Z")

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Hi, How do you extract the SST from your simulation? Is there a way to write it directly into the NetCDF outputs (I didn’t find it), or do you compute it afterwards: using croco\_tools / pytools? If so, how do you proc…

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## [Roms-1d error](https://forum.croco-ocean.org/t/roms-1d-error/280)

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**Author:** [@Hitesh](https://forum.croco-ocean.org/u/Hitesh)\
**Replies:** 0\
**Last updated:** [March 24, 2021, 11:51am UTC](https://forum.croco-ocean.org/t/roms-1d-error/280 "2021-03-24T11:51:28Z")

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While running $make command I am getting an error. Details are provided here - $ make cpp -traditional -DLinux -P -I/usr/local/include main.F \> main\_.i main.F:21:19: warning: extra tokens at end of #ifdef directive …

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## [Problem to use Visualization\_tools](https://forum.croco-ocean.org/t/problem-to-use-visualization-tools/302)

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**Author:** [@javadi](https://forum.croco-ocean.org/u/javadi)\
**Replies:** 0\
**Last updated:** [July 28, 2021, 1:35pm UTC](https://forum.croco-ocean.org/t/problem-to-use-visualization-tools/302 "2021-07-28T13:35:21Z")

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Dear users I ran the model and I try to see the outputs. I use croco tools to deal with this. In my history file, there are some variables u,v,ubar,vbar,u east and north. Here I have two questions: 1)How can I plot cu…

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## [Problem with usinig animation in croco tools](https://forum.croco-ocean.org/t/problem-with-usinig-animation-in-croco-tools/354)

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**Author:** [@javadi](https://forum.croco-ocean.org/u/javadi)\
**Replies:** 0\
**Last updated:** [May 12, 2022, 9:14am UTC](https://forum.croco-ocean.org/t/problem-with-usinig-animation-in-croco-tools/354 "2022-05-12T09:14:35Z")

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Hi I have used Croco tools for plotting but my animation and time series do not work and most of the time I have faced this error. Is there someone to use this? Does it work now? or it was for the past! Warning no time…

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## [What are Vort , Ke and pot\_vort in Roms tools?](https://forum.croco-ocean.org/t/what-are-vort-ke-and-pot-vort-in-roms-tools/425)

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**Author:** [@javadi](https://forum.croco-ocean.org/u/javadi)\
**Replies:** 0\
**Last updated:** [December 22, 2022, 11:49am UTC](https://forum.croco-ocean.org/t/what-are-vort-ke-and-pot-vort-in-roms-tools/425 "2022-12-22T11:49:40Z")

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Hi There are some variables in the croco tools Vort , Ke and pot\_vort. I think that they extracted from outputs. What are their accurate names of them? Best,

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## [Calculation of water volume](https://forum.croco-ocean.org/t/calculation-of-water-volume/431)

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**Author:** [@javadi](https://forum.croco-ocean.org/u/javadi)\
**Replies:** 0\
**Last updated:** [February 2, 2023, 3:45pm UTC](https://forum.croco-ocean.org/t/calculation-of-water-volume/431 "2023-02-02T15:45:28Z")

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Hi I have to calculate the water volume that enters my domain from transection. I do not know how to calculate it. everyone can know how to calculate it? In croco tools, we have a transport function. What is this?

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## [Declaration of variables](https://forum.croco-ocean.org/t/declaration-of-variables/434)

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**Author:** [@fedevelaz](https://forum.croco-ocean.org/u/fedevelaz)\
**Replies:** 0\
**Last updated:** [February 22, 2023, 4:23pm UTC](https://forum.croco-ocean.org/t/declaration-of-variables/434 "2023-02-22T16:23:45Z")

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for running the forecast\_tools, in the routine download\_GFS, there are two variables named “gfs\_date” and “gfs\_date0” but I can’t find information about the value they may have and how they are related to the desired f…

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## [roms\_surface\_geostrophic\_velocity](https://forum.croco-ocean.org/t/roms-surface-geostrophic-velocity/483)

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**Author:** [@jsalcedo](https://forum.croco-ocean.org/u/jsalcedo)\
**Replies:** 0\
**Last updated:** [September 3, 2023, 1:07pm UTC](https://forum.croco-ocean.org/t/roms-surface-geostrophic-velocity/483 "2023-09-03T13:07:18Z")

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I found the function roms\_surface\_geostrophic\_velocity.m, created by John Wilkin to process ROMS (Rutgers). I wonder if you guys can give me an idea of how to do the same with CROCO outputs. I tried to adapt that script …

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## [Error when running with EBUS after compilation, 2nd nesting](https://forum.croco-ocean.org/t/error-when-running-with-ebus-after-compilation-2nd-nesting/478)

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**Author:** [@Gandy](https://forum.croco-ocean.org/u/Gandy)\
**Replies:** 9\
**Last updated:** [August 23, 2023, 3:14pm UTC](https://forum.croco-ocean.org/t/error-when-running-with-ebus-after-compilation-2nd-nesting/478 "2023-08-23T15:14:54Z")

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Im using the script below to run the model (second nesting), but Im getting this error: ERROR: keyword not found: diagbioFlux\_history\_fields ERROR: keyword not found: diagbioVSink\_history\_fields ERROR: keyword not fou…

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## [How calculate mass transport and salinity flux?](https://forum.croco-ocean.org/t/how-calculate-mass-transport-and-salinity-flux/424)

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**Author:** [@javadi](https://forum.croco-ocean.org/u/javadi)\
**Replies:** 1\
**Last updated:** [December 19, 2022, 3:13pm UTC](https://forum.croco-ocean.org/t/how-calculate-mass-transport-and-salinity-flux/424 "2022-12-19T15:13:57Z")

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Hi I have the outputs of the simulation. My question is that how can I calculate salinity flux or transport enters our domain on the strait? Is there any code in the Croco tools? Should we define it on the running time? …

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## [Edit bathymetry 2](https://forum.croco-ocean.org/t/edit-bathymetry-2/399)

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**Author:** [@alonso](https://forum.croco-ocean.org/u/alonso)\
**Replies:** 1\
**Last updated:** [October 7, 2022, 7:54pm UTC](https://forum.croco-ocean.org/t/edit-bathymetry-2/399 "2022-10-07T19:54:52Z")

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I’m processing tidal current, but I’m not sure how to transform from s\_rho (‘S-coordinate at RHO-points’) to meters , is there some tools in crocotools for that?

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## [From sigma to depth coordinates](https://forum.croco-ocean.org/t/from-sigma-to-depth-coordinates/320)

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**Author:** [@camila](https://forum.croco-ocean.org/u/camila)\
**Replies:** 1\
**Last updated:** [December 20, 2021, 8:45am UTC](https://forum.croco-ocean.org/t/from-sigma-to-depth-coordinates/320 "2021-12-20T08:45:14Z")

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Hi, I am trying to get depth coordinates from sigma coordinates and obtain my variables in 3 d (lat, lon and depth instead of sigma level). It is probably something really simple since the croco\_gui does it in the visua…

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## [Time series of kinetic energy, potential energy, total energy, and net volume](https://forum.croco-ocean.org/t/time-series-of-kinetic-energy-potential-energy-total-energy-and-net-volume/293)

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**Author:** [@Carlos\_Perea](https://forum.croco-ocean.org/u/Carlos_Perea)\
**Replies:** 4\
**Last updated:** [August 18, 2021, 6:37pm UTC](https://forum.croco-ocean.org/t/time-series-of-kinetic-energy-potential-energy-total-energy-and-net-volume/293 "2021-08-18T18:37:46Z")

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Hello every one i want to plot time series of kinetic energy, potential energy, total energy, and net volume contained within the out.txt (I attach my file) out12may\_.txt. With these time series I want to identify whe…
