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2017WP/SpecificActions – NEMO
wiki:2017WP/SpecificActions

Version 1 (modified by nicolasmartin, 8 years ago) (diff)

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Specific actions

  1. CMCC-NEMO
  2. CNRS-INSU-NEMO
  3. INGV-NEMO
  4. Mercator-Océan-NEMO
  5. Met Office-NEMO
  6. NOC-NEMO

List here the actions not listed in ExtractUrl(../Shared_Actions)?

CMCC-NEMO

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Wiki page "2017WP/CMCC" does not exist

CNRS-INSU-NEMO

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CNRS 2017

Last edition: Wikinfo(changed_ts)? by Wikinfo(changed_by)?

Link: ExtractUrl(.)?

Additional NEMO ST members involved

Name Institution % Position
Martin Vancoppenolle CNRS LOCEAN-IPSL, Paris 10 CNRS
Laurent Debreu IMAG, Grenoble 0 INRIA, AGRIF Working Group Leader
Marie-Alice Foujols IPSL, Paris 0 CNRS
Rachid Benshila LEGOS, Toulouse 0 CNRS

Summaries from Actions forms

List of pages: CNRS-14_Merino-ICB, CNRS-1_Martin-LIM3PTRA

Action CNRS-1_Martin-LIM3PTRA Add generic passive tracer to LIM3
PI(S) Martin Vancoppenolle

Digest

In order to prepare a Biogeochemical compartment in sea ice, a generic passive tracer interface will be added in LIM3

Dependencies Depends on ...
Target Priority or deadline
Trac Ticket #XXXX
SVN branch [source:/branches/2017WP/dev_r{REV}_{WG or INSTITUTE}-{NUM}_{PIS}-{KEYWORDS}]
Previewer(s) Names
Reviewer(s) Names
Status Pending/In progress/Postponed/Ready
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Action CNRS-14_Merino ICB
PI(S) Nacho Merino

Digest

Improve NEMO-ICM (icebergs) ocean column properties.

Proposed modifications consists in considering the ocean column properties in the dynamics and thermodynamics parametrizations of the NEMO-ICB module: 1- In the computation of the ocean drag term for the iceberg dynamics equation we propose the use of the depth-integrated ocean velocity as described in equation 2.1 of Merino et al 2016, instead of considering the ocean surface velocity. In the situation where the submerged part of an iceberg is greater than the ocean bathymetry, the integrated velocity considers zero velocity for the part of the iceberg which is deeper than the ocean bathymetry. This parametrization has the effect of reducing the iceberg velocity when icebergs transit through shallow regions of the ocean. We have chosen not to stop or stuck icebergs in such situation since this has a strong impact in the iceberg distribution and it would require a representation of subgrid bathymetry. 2- For the computation of the basal turbulence melt rate term, we propose to consider the ocean temperature at the iceberg depth (equation 2.2 in Merino et al 2016) instead of the sea surface temperature. In cases where the submerged part of the iceberg is greater than the ocean bathymetry we propose to consider the ocean temperature at the ocean bathymetry depth. 3- For the buoyant convection term, we propose to integrate this term along the submerged part of the iceberg (equation 2.3 of Merino et al 2016), instead of only consider the ocean surface temperature. In cases where the submerged part of the iceberg is greater than the ocean bathymetry, the ocean temperature considered in the integral for the part of the iceberg which is found deeper than the ocean bathymetry (no temperature is defined deeper than the ocean bathymetry) is the temperature of the ocean at the bathymetry depth.

Dependencies Depends on nothing
Target Priority or deadline
Trac Ticket #1900
SVN branch No need of specific branch: the code exist and has been tested and its use published
Previewer(s) Tim Graham or Pierre Mathiot
Reviewer(s) Tim Graham or Pierre Mathiot
Status Ready & succesful : Incorporated in dev_merge_2017 in early January 2018
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INGV-NEMO

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INGV 2017

Last edition: Wikinfo(changed_ts)? by Wikinfo(changed_by)?

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Additional NEMO ST members involved

Name Institution % Position
Gelsomina Mattia INGV 10 ...

Summaries from Actions forms

List of pages: INGV-1_Mattia_Test_Mediterranean

Action INGV-1_Mattia Test Mediterranean
PI(S) Gelsomina Mattia ; Emanuela Clementi

Digest

Test the wave-current interaction processes in the Mediterranean Sea coupled with WW3. Evaluate single process impact on the hydrodynamic fields. Propose possible modifications and enhancements. This action doesn’t require a development and a branch to be created, it is an activity supporting WAVE couling development

Dependencies Depends on WAVE-1 and WAVE-2
Target Deadline: December 2017
Trac Ticket #XXXX
SVN branch branches/$YEAR/dev_r{REV}_{WGorINSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
Previewer(s) Names
Reviewer(s) Names
Status Postponed
Link ExtractUrl(.)?

..

Mercator-Océan-NEMO

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Wiki page "2017WP/Mercator-Ocean" does not exist

Met Office-NEMO

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Met Office 2017

Last edition: Wikinfo(changed_ts)? by Wikinfo(changed_by)?

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Additional NEMO ST members involved

Name Institution % Position
Matt Martin Met Office 20 ...
Miroslaw (Mirek) Andrejczuk Met Office 50 ...

Summaries from Actions forms

List of pages: Met_Office-1_MattMartin_avgoperator, Met_Office-1_Mirek_XIOSread

Action Met_Office-1_MattMartin_avgoperator
PI(S) Matt Martin

Digest

Add an averaging operator to OBS operator for use with satellite observations, include SSS data type, change the way QC flags are set, and deal with boundaries in limited area models.

Dependencies
Target NEMO 4.0 merge party
Trac Ticket #XXXX
SVN branch branches/2017/dev_r8657_UKMO_OBSoper
Previewer(s) Arthur Vidard
Reviewer(s) Arthur Vidard
Status In progress
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Action Met_Office-Mirek_XIOSread
PI(S) Miroslaw Andrejczuk (Mirek)

Digest

As the number of cores in NEMO increases parallel reading of single netcdf files (e.g. restarts, forcing, observations) is becoming increasingly slow.
This action will test the use of XIOS for reading these input files. This ticket will document development related to reading restart file only.

Dependencies XIOS development. Currently the number of NEMO CPUs which can be used when reading data via XIOS is limited to 3700
Target Major
Trac Ticket #1953 and #1962
SVN branch [source:/branches/2017/dev_r8600_xios_read_write_v2
Previewer(s) Names
Reviewer(s) Names
Status Postponed
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NOC-NEMO

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NERC-NOC 2017

Last edition: Wikinfo(changed_ts)? by Wikinfo(changed_by)?

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Additional NEMO ST members involved

Name Institution % Position
George Nurser noC 10% System team
James Harle noC 10% System team
Gurvan Madec noC/CNRS 5% NEMO Lead

Summaries from Actions forms

List of pages: NOC-1_Nurser-OSMOSIS, NOC-2_JamesH-SCO_ISF

Action NOC-1_Nurser-OSMOSIS
PI(S) George Nurser

Digest

Implement mixed layer parameterisation arising from the OSMOSIS project.
This is a new parameterisation (publication under review), derived from first principles that takes full account of the mixing induced by Langmuir circulations

Dependencies Depends on ...
Target Priority or deadline
Trac Ticket #XXXX
SVN branch branches/2017/dev_CNRS_2017
Previewer(s) Gurvan
Reviewer(s) Gurvan
Status Successful by Dec 2017
Link ExtractUrl(.)?

Action ENHANCE-8_AndrewC-Wetting_and_drying
PI(S) Andrew Coward

Digest

A basic wetting and drying functionality was introduced in 2016 in the form of simple test cases implemented via the new user configuration interface.
The 2017 work will extend and test the implementation in realistic domains with large tidal ranges.

Dependencies https://forge.ipsl.jussieu.fr/nemo/wiki/2017WP/MetOffice-3_Enda_WAD
Target Switched to MetO contribution for 2017
Trac Ticket #1992
SVN branch branches/$YEAR/dev_r{REV}_{WGorINSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
Previewer(s) Mike Bell
Reviewer(s) Andrew Coward
Status Successful by Dec 2017
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Action ROBUST-8_AndrewC-MPP_no_ghost
PI(S) Andrew Coward

Digest

With the move to full dynamic allocation there is no need to retain a uniform jpi and jpj across all processing regions.
Allowing these to vary will permit simplification by removing the possibility of 'ghost' rows or columns and therefore remove the need for the confusing number of start and end markers such as nldi and nlci.
This work should also simplify the introduction of wider haloes.

Dependencies Depends on ...
Target Priority or deadline
Trac Ticket #1915
SVN branch branches/2017/dev_r8126_ROBUST08_no_ghost
Previewer(s) Gurvan
Reviewer(s) Gurvan
Status Successful by Dec 2017
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Action NOC-2_JamesH-SCO_ISF
PI(S) James Harle

Digest

The simulation of dense water cascading from the shelf has been shown to benefit from the use of S-coordinate and mixed S-coordinate/partial step vertical grids in Arctic simulations.
To gain maximum benefit in Antarctic simulations will require the under Ice-ShelF component to be adapted to work with the alternative vertical coordinates.
This work will address this issue and will fully test solutions in a 'PERIANT' type model of the Southern Ocean being developed under the UK 'ORCHESTRA' project.

Dependencies Depends on ...
Target Priority or deadline
Trac Ticket #1955
SVN branch branches/$YEAR/dev_r{REV}_{WGorINSTITUTE}-{NUM}_{PIS}-{KEYWORDS}
Previewer(s) Names
Reviewer(s) Names
Status Postponed due to other commitments
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