Met Office-NEMO team - 2012 actions

Last edited Timestamp?

members

Rachel Furner	Met-Office, Exeter	20 NEMO System Team Officer
Christopher Harris	Met-Office, Exeter	20
Richard Hill	Met-Office, Exeter	20
Enda O’Dea	Met-Office, Exeter	20
Dave Storkey	Met-Office, Exeter	20

total weeks :
56

Summary:

Action	Brief description	Status	Branch name	Trac ticket n°	Wiki page name	Reviewer(s)	Review status	Review ticket/wiki page	Nb of weeks	Ready for merge
UKMET-1	AMM + Coastal shelf modelling	Some small bug fixes were added as required, and users were helped with picking up this new config.
UKMET-2	GODAE metrics	Updates to flow through transects code complete, now in 3.5 beta branch. Additional diagnostics to be added next year				Clement Bricaud
UKMET-3	Include radiation conditions in BDY	Work is ongoing, nothing submitted back for 2012	​http://forge.ipsl.jussieu.fr/nemo/browser/branches/2012/dev_r3365_UKMO_3_4_BDY	#959	https://forge.ipsl.jussieu.fr/nemo/wiki/2011WP/2011Stream2/OpenBoundaryProgress2011	Jerome Chanut / Rachid
UKMET-4	Develop a capability to allow OBC users to use BDY	Work is ongoing, nothing submitted back for 2012	​http://forge.ipsl.jussieu.fr/nemo/browser/branches/2012/dev_r3365_UKMO_3_4_BDY	#959
UKMET-5	Validation toolkit rewriting (in collaboration with LOCEAN)	Work is ongoing, nothing submitted back for 2012	UTF in Met Office UM system, SETTE: ??	#752	​http://forge.ipsl.jussieu.fr/nemo/ticket/752
UKMET-6	OBS and ASM improvements	Ongoing, nothing to be submitted for 2012
UKMET-7	A new vertical coordinate scheme for shelf waters	Complete, now in 3.5 beta branch	https://forge.ipsl.jussieu.fr/nemo/browser/branches/2012/dev_r3435_UKMO7_SCOORDS	#985	https://forge.ipsl.jussieu.fr/nemo/wiki/ticket/985	George Nurser	In progress
UKMET-8	CICE improvements	Complete, now in 3.5 beta branch	https://forge.ipsl.jussieu.fr/nemo/browser/branches/2012/dev_3352_UKMO8_CICE (now merged into https://forge.ipsl.jussieu.fr/nemo/browser/branches/2012/dev_r3385_NOCS04_HAMF)	#953		Andrew / Yevgeny (reciprocal to NOCS-4/5)
UKMET-9	Reinstating of nn_stocklist	postponed to next year
UKMET-10	Add a kara mixed layer diagnostic	postponed to next year
UKMET-11	Add a CFL diagnostic	postponed to next year

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Possible additional work

Optimisations for NEMO (some are currently implemented at the Met Office, these could be tidies up and added for general use --- given the role of INGV in this probably not

Given the choas in OASIS we should to see if OASIS4 is really going to happen before we start the below task

OASIS4 Interface

Motivation: Implement an OASIS4 interface, specifically to enable assessment of OAISS4 functionality and scalability when using "user defined weights" files to be investigated in the context of HadGEM3 coupled models.
Status : Ongoing relative to NEMO vn3.2
Main tasks : Implement interface to OASIS4 in NEMO (most recent OASIS4 versions available which as of Nov 2011 is changing on a weekly basis). Assess OASIS4 for correct functionality. Assess OASIS4 for viable MPP scalability. If OASIS4 is seen as a viable option, upgrade interface code to latest NEMO version (vn3.4?)
Science Reviewer: ??
System Reviewer: Suggest Sebastien Masson, if we decide that it is worth including the OASIS4 interfacing in the NEMO trunk.
Deadline: September 2012 for decision on whether to include in NEMO vn3.5
Priority: Medium
Principal Investigator: Richard Hill (richard.hill@…)

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UKMO.1 — AMM + Coastal shelf modelling

Motivation: To maintain AMM configuration, ensuring compatibility with new coastal functionality
Status : Standard configuration exists
Main tasks :

1. Create wiki page on NEMO web site with standard test case.
2. Provide test case with external open boundary data for T+S.
3. Update science as appropriate.
4. Support users.

Science Reviewer: N/A
System Reviewer: Rachid?
Deadline: September 2012
Priority: Medium
Principal Investigator: Enda O'Dea (enda.odea@…)

UKMO.2 — GODAE metrics

Motivation:To improve GODAE metrics (computation of meridional heat transport,meridional stream functions and transport through sections)
Status :Not started
Main tasks :To consider Mercators implementation of calculation of flow through sections and adapt existing Met Office code to fit in with this. Also, to improve the code to deal with both irregular grids and rotated grids
Science Reviewer:Clement Bricaud?
System Reviewer:
Deadline: September 2012
Priority: Medium
Principal Investigator: Rachel Furner (rachel.furner@…)

UKMO.3 — Include radiation conditions in BDY

Motivation: As part of the merge of OBC and BDY, the OBC radiation condition needs to be implemented in BDY
Status : Preparatory work done
Main tasks : Implement implicit version of Orlanski radiation condition.
Science Reviewer: Jerome Chanut
System Reviewer: Rachid Benshila?
Deadline: September 2012
Priority: Medium
Principal Investigator: Dave Storkey (dave.storkey@…)

UKMO.4 — Develop a capability to allow OBC users to use BDY

Motivation: It is planned to suppress OBC in the long term and use BDY for open boundary conditions. We need to develop tools or code to make it easy for OBC-style boundary data files to be used with BDY.
Status :
Main tasks : Provide tools for generation of open boundary coordinates files and external data files.
Science Reviewer: Guillaume Reffray (and Paolo?)
System Reviewer: Rachid Benshila?
Deadline: September 2012
Priority: Medium
Principal Investigator: Dave Storkey (dave.storkey@…)

UKMO.5 — Validation toolkit rewriting (in collaboration with LOCEAN)

Motivation: NVTK is to be replaced with something more generally flexible, adaptable, maintainable and portable
Status: Commencing investigation into possible "off-the-shelf" solutions
Main tasks:

1. Investigate possibility of using the Met Office User Test Framework (UTF) system - RH (1 week)
2. Assess UTF viability once basic NEMO functionality installed - RH (1 Week)
3. SV develop basic SETTE system while awaiting outcome of UTF development/tests

Science Reviewer: Simona Flavoni
System Reviewer: Rachid Benshila
Deadline: TBA
Priority: Medium/High?
Principal Investigator: Richard Hill (richard.hill@…) - consultancy role

UKMO.6 — OBS and ASM improvements

Motivation: Maintain and improve the data assimilation interface code
Status: Code is in vn3.4 but requires maintenance and upgrades
Main tasks:

1. Maintain the OBS and ASM code. (No changes required)
2. Implement and test any upgrades to the OBS and ASM code.
3. Develop the test environment so that it includes tests for the OBS and ASM functionality.

Science Reviewer: To be reviewed by NEMOVAR partners and CMCC representative
System Reviewer: Rachid Benshila
Deadline: September 2012
Priority: Medium
Principal Investigator: Daniel Lea (daniel.lea@…)

UKMO.7 — A new vertical coordinate scheme for shelf waters

Motivation: The current stretched sigma coordinate options mean the size of the surface box varies greatly, leading to inconsistent flux inputs. We would like to develop a terrain following coordinate system which still provides a constant surface box height.
Status : A proposed coordinate system has been scoped
Main tasks :

1. Finalise the theory of the vertical coordinate system
2. Implement this within domzgr and test the effects

Science Reviewer: George Nurser, NOCS
System Reviewer:
Deadline:
Priority: High
Principal Investigator: Rachel Furner (rachel.furner@…)

UKMO.8 — CICE improvements

Motivation: Maintain and improve the interface code to CICE
Status: Code is in vn3.4 but requires maintenance and upgrades
Main tasks:

1. Fix any bugs
2. Consider enhancements to calculation of freezing / melting potential and interpolation of vectors around coasts
3. Tidy /modify code to be most helpful to current known users
4. Make NEMO-CICE functionality available in more configurations and with other improvements planned for next release.

Science Reviewer: This code will be reviewed by Andrew / Yevgeny at NOCS, but at the same time Chris Harris will review NOCS-4/5 which will interact with some of the changes covered by this ticket.
System Reviewer:
Deadline: 30 September 2012
Priority: Medium
Principal Investigator: Chris Harris (christopher.harris@…)

UKMO.9 — Reinstating of nn_stocklist

Motivation: The option to specify a list of times for which to output restart files, instead of a frequency was removed at vn3.0, and needs to be re-added
Status: code exists at Met Office
Main tasks: Update Met Office code to latest version.

Science Reviewer: n/a
System Reviewer: ??
Deadline:
Priority: Low
Principal Investigator: Dave Storkey (dave.storkey@…)

UKMO.10 — Add a kara mixed layer diagnostic

Motivation: The Met Office uses the Kara et al mixed-layer depth diagnostic as our standard MLD diagnostic.
Status:
Main tasks: Implement Kara scheme as alternative to existing MLD diagnostics.
Science Reviewer:
System Reviewer:
Deadline:
Priority: Low
Principal Investigator: Dave Storkey (dave.storkey@…)

UKMO.11 — Add a CFL diagnostic

Motivation: This is an option to output the maximum CFL parameter during a model run. Output in ocean.output file.
Status:
Main tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority: Low
Principal Investigator: Ed Blockley (ed.blockley@…)

UKMO.12 — Stream Tube parameterisation

Motivation: Work on overflow parametrisations (streamtube), such as those that have been implemented within CCSM.
Status: Not begun
Main tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority: Low
Principal Investigator: Chris Harris (christopher.harris@…)

UKMO.13 — Ice cavities

Motivation: Improvements on dynamics of flows in ice cavities
Status: Not begun
Main tasks:
Science Reviewer:
System Reviewer:
Deadline:
Priority: Low
Principal Investigator: Chris Harris (christopher.harris@…)