2019 Workplan

The NEMO development is planned on a yearly basis relying on the NEMO Development Strategy document, which designs the long term evolution (5 to 10 years) in both scientific and engineering aspects.

Shared actions

The 2019 workplan is made up of shared actions which are the development priorities for all consortium's institutions.

(dynamical core)




(tracers and biogeochemistry)


Air-Sea interactions

(nesting tools and zooms)







2019 WP


Ticket Summary Owner Progress Review MP ready?
#2022 AGRIF-01_cbricaud-EWandNorthBC(2017WP) cbricaud this task will be develop by INRIA in a cmems contract failed no
#2199 AGRIF-01_jchanut_small_jpi_jpj jchanut Request for preview submitted on May 15 failed no
#2129 AGRIF-02_CMEMS_improve_global rblod Unspecified failed no
#2111 CMCC-01_sciliberti_BDYModel sciliberti Action is still under development - in particular, devs on 4.0 need to be setup, actually partially implemented for 3.6. failed no
#2193 CMCC-03_Clementi_Add Wave Diag emanuelaclementi In progress. Part of this action was included in in previous WP2018 actions (VALID-08_Drudi_Wave_ORCA2, VALID-09_Lovato_TestWave_MedSea) To be finalized by end 2019. failed no
#2052 ENHANCE-01(2018WP)_Romain-massfluxconvection rbourdal first implementation ok; C1D case under evaluation; 3D case to be done pending no
#2142 ENHANCE-02_Pierre Mathiot_ISF mathiot Status 08/2019: Work started on 2 branches: one for domcfg (inclusion of the new geometry computation) and one on NEMO itself (cleaning, new method to couple with an ice sheet model, ... see wiki for details). Testing: - test on ISOMIP successful. Still to do: - add the WED025 configuration (bdy, sea ice, ice shelf, tides) configuration. - add an updated ISOMIP test (static geometry and moving geometry). - test it with our prototype GO8 on eORCA025. - review. Will be ready for the merge. failed no
#2143 ENHANCE-03_PierreMathiot_DomcfgTools mathiot - Change in domcfg to define the closed sea and its river mouth using a lat/lon seed is done. - Change in NEMO to manage multiple closed sea with the same river mouth. - tested in a very idealised case. Still to do: - test it with eORCA025, eORCA1, ORCA2 (to see if the same namelist block works for various configuration with different lakes activated). Will be ready for the merge party. failed no
#2167 ENHANCE-04_AndrewC-reporting acc Most of the basic functionality has been implemented post-merge (2018) and is already in both the trunk and release. See: wiki:2019WP/ENHANCE-04_AndrewC-reporting for details. There is more that can be done to improve and enhance options and the task is likely to be revisited before the next merge (2019). The key further development planned is to implement single-core read and broadcast for common, small-volume inputs (e.g: EMPave.dat, namelists etc.). failed no
#2175 ENHANCE-05_SimonM-Harmonic_Analysis smueller Implementation in progress pending no
#2176 ENHANCE-07_JamesH-sigma_under_ISF jamesharle Unspecified failed no
#2045 ENHANCE-08(2018WP)_Gurvan-Implicit_Drags gm Require the RK3 environment. Two steps: (1) proper implicit top & bottom drag. (2) implicit ice-ocean drag. Step (1) expected for WP2009 Step (2) is unscheduled: it requires significant changes in the SI3 architecture failed no
#1959 ENHANCE-09_Jerome_freesurface(2017WP) jchanut Tasks 1) and 3) are already completed and available in NEMO 4.0, hence only task 2) (pressure gradient gradient correction) is remaining. Implementation plan is in progress. failed no
#2315 ENHANCE-11_CEthe_Shaconemo_diags cetlod Ongoing, planned for the merge 2019 failed no
#2194 ENHANCE-12_SimonM-Tides smueller Implementation in progress pending no
#2217 HPC-01_Mike Bell_OpenMP mikebell Unspecified failed no
#2011 HPC-04(2018WP)_Mocavero_mpi3 mocavero Some tests on a significative kernel have been executed (using a mini-app approach). The integration of the neighbourhood collective communications in the trunk is ongoing. The branch will be ready for merge party end 2019 failed no
#2166 HPC-06_SimonM-extendedhaloes smueller On hold failed no
#2195 HPC-08_XXX_fldread_with_XIOS andmirek I have implemented use of XIOS to read weights file and initial conditions. Next step is to use it to read forcing files. There are few issues related to the way XIOS handles reading which may make implementation difficult. First XIOS can't read data from files split in time (it writes data without any problems) and this is what happens in MetOffice configuration. In addition XIOS can't jump between time records - it can read only next time record. As a result replicating full functionality currently in NEMO will be difficult. Inability of XIOS to jump between records makes reading forcing difficult if there is time interpolation involved and forcing for different parts have different frequencies. failed no
#2198 HPC-10_Mike_Tiling mikebell Unspecified failed no
#2040 HPC-13_Mixed_precision_study-13.2_Implementation mcastril Implementation will start this year, now that the methodology is ready and it is technically possible to do the automatic analysis in a short time. pending no
#2202 PUBS-01_ODea_WAD deazer Paper is complete and being readied for submission failed no
#2191 PUBS-03_NDS_CHAPTER vancop The SIWG International workshop is taking place over Sep 23-26, in Laugarvatn, Iceland, funded mostly by IS-ENES3. >30 experts will come and discuss on perspectives on sea ice modelling. Based on that, a workshop summary will be written, from which the NDS is to be updated. failed no
#2023 PUBS-04_cbricaud_CRS cbricaud Unspecified failed no
#2189 PUBS-05_SI3_documentation vancop This task will be ongoing over the duration of IS-ENES3, until 2022. It must be spread among the sea ice working group members during our next meeting in 2020. failed no
#2218 PUBS-06_Z_coordinates_comparison techene Unspecified failed no
#2029 SI3-01(2018WP)_topographic_meltponds vancop Topographic melt ponds to be branched and tested in the framework of SI3 evaluation failed no
#2033 SI3-02_crousset_validation_rheology clem this action will be postponed for next year failed no
#2034 SI3-03_crousset_validation_landfast clem this action will be postponed for next year failed no
#2035 SI3-04_crousset_evaluation_UM5vsPRATHER clem maybe...but it will probably not be finished this year failed no
#2188 SI3-07_tsamados_drags vancop No progress until now. Postponed to 2020. failed no
#2207 TOP-01_cethe_PISCES_LBC cetlod Ongoing, planned for the merge 2019 failed no
#2038 VALID-01(2018WP_cont)_clevy_AGRIF clevy Postponed 2020 failed no
#2170 VALID-02_GeorgeN-evalOSMOSIS agn At 23 May 2019: The OSMOSIS code has been implemented in the v4.0 release of NEMO (presently based on r10833, April 3rd 2019). Work has begun on a range of approaches to reduce the too-deep winter mixed layers. a. Reduction in the effectiveness of the Langmuir mixing in cases where the ratio of the Stokes penetration depth to the boundary layer depth is small. and b. Reduction in effectiveness of shear-turbulent, Langmuir and convective deepening when the respective eddy turnover timescales (hbl/u* etc.) approach the inertial timescale 1/f. failed no
#2059 VALID-03_smasson_regional_agrif smasson this action has not started. No developments are expected from this action. It is a testing action to potentially find bugs failed no
#2208 VALID-04_cetlod_TOP_offline cetlod Will started after the merge 2019 failed no

Ticket Summary Owner Progress Review MP ready?
#2018 AGRIF-04(2018WP)_jchanut-TSTEPPING jchanut A new split-explicit free surface integration compliant with AGRIF needs has been designed. The task is however postponed until the new time stepping environment is available. failed no
#2222 AGRIF-05_jchanut_vert_coord_interp jamesharle Development plan for this task is ready. Completion of task AGRIF-01_jchanut_small_jpi_jpj is needed first. failed no
#2131 ASINTER-01_Guillaume_ABL1D gsamson model implementation ok; ORCA025 tests ok; abl tools ok; SETTE to be done failed no
#2155 ASINTER-02_Clementi_wave-mixing emanuelaclementi Ongoing. Follwong IMMERSE WP, a branch will be created by end 2019 gathering recent works on enhanced ocean mixing due to breaking waves. The implementation then will be finalized (by mid 2020) failed no
#2156 ASINTER-03_Masson_CurrentFeedback smasson related paper in review. Coding existing in an old version. Easy to add in the trunk. Will be done for the merge party failed no
#2157 ASINTER-04_Madec_waves gm Unspecified failed no
#2158 ASINTER-06_Brodeau_Wave_Bulk laurent not started (working on ticket #2159 ASINTER-05_Brodeau_Advanced_Bulk which needs to be finished to start this one...) failed no
#2112 CMCC-02_sciliberti_BDYTool sciliberti Unspecified failed no
#2126 ENHANCE-10(2017WP)_jchanut-ZTILDE2 jchanut Work has been done but in a 1 year old NEMO version. Review and transfer to the most recent code have to be done. Note that testing of the revised ztilde coordinate is underway in a global 1/4° configuration (Alex Megann). failed no
#2153 HPC-03_HPDAonlineDiag epico Unspecified failed no
#2160 HPC-04_MCastrillo_HPDAonlineDiagGPU mcastril The expected outcome for 2019 is to have a small demonstrator of a small set of NEMO diagnostics running on GPUs. This objective has been fulfilled. Currently we are improving the solution for this first set in order to increase its efficiency by applying techniques allowing to mitigate the overhead of the data offload. Also we are porting the model to Power9 architecture to run the full model in MareNostrum4 Power9 cluster. The whole task will be continued in the following years. pending no
#2196 HPC-07_XXX_agrif_HPC_review Unspecified failed no
#2258 KERNEL-02_Storkey_Coward_IMMERSE_first_steps davestorkey * State variables to be renamed with an extra time dimension and time level swapping achieved by swapping time level indices. [done] * Prognostic fields to be passed to tendency routines from stp as arguments. [done] * Introduction of DO loop macros in preparation for the implementation of tiling [not started and is unlikely to be ready this year] failed no
#2285 Optimization of the communications in BDY girrmann Unspecified pending no
#2308 Optimization of the communications in DYN girrmann Unspecified pending no
#2209 PUBS-02_Nicolas-DemoCases_Implementation (WP2 - MS2.1) nicolasmartin Procedure for adding a test case expected to be published soon pending yes
#2323 read/write SI3 restart with XIOS andmirek Unspecified failed no
#2186 SI3-05_VP_rheology vancop No progress until now. Hopefully some progress by the end of the year, but too late to get that into the merge party 2019. failed no
#2187 SI3-08_lagrangian_drifters vancop No progress until now. Hopefully some progress by the end of the year, but too late to get that into the merge party 2019. failed no
#2150 TOP-02_emalod_OASIS_interface_between_TOP_and_NEMO emalod Unspecified failed no

Add a development action

Append your action(s) to the list by initiating resources to track and archive the development work.

In 2019, be careful with the milestone you choose for your ticket! Should be set either to 2019 WP or IMMERSE 2019

1 - Define action
Number Incremental, check free nb above
Identify PI(s) and field(s), no space
2 - Create resources

Guidelines & Record

Monitoring & Discussion

See the instructions page for the workflow to implement a development in NEMO.


Name Institution % Position
Pierre Mathiot UKMO 25 Officer
Dave Storkey UKMO 25
Mike Bell UKMO 25
Mireck Andrejczuk UKMO 25
Dorotea Iovino CMCC 40 Officer
Stefania Ciliberti CMCC 20
Emanuela Clementi CMCC 20
Massimiliano Drudi CMCC 20
Italo Epicoco CMCC 40
Tomas Lovato CMCC 20
Francesca Mele CMCC 20
Andrew Coward NOC 40 Officer
Simon Müller NOC 60
George Nurser NOC 10
James Harle NOC 10
Nico Bruneau NOC 20
Claire Lévy CNRS 100 Project manager
Sebastien Masson CNRS 50 Officer
Clement Rousset CNRS 50
Gurvan Madec CNRS 50
Christian Ethé CNRS 50
Nicolas Martin CNRS 50
Martin Vancoppenolle CNRS 30
Sibylle Techene CNRS 10
Guillaume Samson MOI 30 Officer
Chanut Jerome MOI 70
Romain Bourdalle Badie MOI 10
Clement Bricaud MOI 10

Specific actions

For information, some specific actions are listed as other planned developments coming with additional resources.






            Last modified 3 months ago Last modified on 2019-09-04T15:51:52+02:00