NEMO release nemo_v_3_4
Table of contents
The new release of NEMO nemo_v3_4 is now available
Practical details for download and installation available here: http://www.nemo-ocean.eu/Using-NEMO/User-Guides/Basics/NEMO-Quick-Start-Guide
Note this is a major release and the documentation has been updated in consequence.
Major improvements
New physics and numerics
- new pressure gradient suitable for s-coordinate (namelist ln_hpg_djc)
- completion of Griffies iso-neutral diffusion (ln_traldf_grif)
- back to a semi-implicit bottom friction (bugfree) (namelist ln_bfrimp)
- add Pacanowski-Philander scheme for computation of Ekman depth in zdfri
- add a new bulk formulae (namelist ln_blk_mfs and namsbc_mfs)
- introduce a drag coefficient compute by wave model (new namelist &namsbc_wave)
- add tidal potential forcing (new &namelist nam_tide)
- Netpune effect parametrization
- point to point MPI communication for north fold (namelist ln_nnogather)
- allow sub timestepping for biogeochemistry models when using non-linear free surfac
- Improvement in PISCES (light limitation ; quota model for iron ; use Pa in gas exchange ; fldread for all data ; calcite dissolution & calcon salinity dependence )
Configurations, diagnostics and tools
- suppression of POMME configuration
- addition of a regional configuration AMM12 (key_amm_12km and input files http://dodsp.idris.fr/reee512/NEMO/amm12_inputs_v3_4.tar)
- improvement of format for lagrangian floats
- online computing of transport across sections
- tidal harmonic analysis (new namelist &nam_diaharm)
- tools to prepare input files for observation operator
- timing functionality (namelist ln_timing)
System simplification
- simplification of dynamic allocation
- end of merge TRA/TRA (no more separate 3d arrays for tracers, only 4d)
- suppression of obsolete hpg options
- more flexible definition of BDY input data
- simplification of interfaces toward biogeochemical models
- interface with CICE in coupled mode
- Use of fldread to read/interpolate data for passive tracers and dynamical input data for OFFLINE configurations
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