[NorESM-users] release-noresm2.0.2 of NorESM2

[Dirk Jan Leo Olivie]

Dear all,

we are happy to announce the release of an updated version of NorESM2 :
*release-noresm2.0.2*.  You can find more information on
https://github.com/NorESMhub/NorESM/releases/tag/release-noresm2.0.2.

(The release was actually made available on July 19th - so possibly you
were already aware of this release by an automatic generated message from
NorESMhub.)

This version builds on the former two releases (it continues to use the
distributed repository structure for the different model components), and
can be used to reproduce the CMIP6 simulations of NorESM2.

It is also aimed to be the base version for the planned KeyCLIM simulations
for which it contains extra usermods_dir.

*This release contains several improvements such as*


   - updated documentation
   - bug fixes such that model runs without intermittent crashes on certain
   machines (nebula, tetralith)
   - automatic download of NorESM-specific inputdata from
   noresm.org/inputdata
   - indication of which grids are supported for individual compsets
   - modification in the inputdata structure of BLOM
   - extra usermods_dir for keyCLIM simulations and extra compsets for
   covid simulations

*Additional features*


   - restart files for some compsets can now be found on noresm.org/restart

*How to obtain this version*

   - type : "git clone https://github.com/NorESMhub/NorESM.git"
      - type : "cd NorESM"
      - type : "git tag --list" (this should give you a list of the
      existing tags or releases)
      - type : "git checkout release-noresm2.0.2"
      - type : "./manage_externals/checkout_externals"

*Notice*


   1. automatic download of inputdata from noresm.org to certain machines
   (e.g. nebula) might not work completely as expected. This can partially be
   solved by or :
   (a) change the listed order of servers in
   cime/config/cesm/config_inputdata.xml : move the cesm-inputdata server
   before the noresm.orgserver; or
   (b) run ./check_inputdata twice; or
   (c) submit the job twice (./case_submit).
   2. reproducing CMIP6 results
   (a) on vilje and fram for atmosphere-only compsets (like NF1850norbc,
   NFHISTnorpibc, ...) : this can be obtained by commenting out in
   cam/src/chemistry/mozart/chemistry.F90 line 1310 : ncldwtr(:,:) = 0._r8
   (b) on vilje and fram for fully-coupled simulations (like N1850,
   NSSP245frc2, ...) : we have kept the -init=zero,arrays compiler settings
   for CAM on fram and vilje
   (c) one should use the same number of processor as in the original
   simulation
   3. it is possible that some NorESM-specific inputdata is missing on
   noresm.org/inputdata. If that happens, please make an issue, and we will
   try to upload the missing data.

In case of questions or problems, don't hesitate to contact us, or raise an
issue on github.com/NorESMhub/NorESM.

Best regards,
The NorESM team

-- 
-- 
##################################
Dr. D.J.L. Olivié
Norwegian Meteorological Institute,
Research and Development.

P.O. Box 43, Blindern,
N-0313 Oslo, Norway

Phone:
Mobile: +47 90576952
e-mail: dirk.olivie at met.no
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