Summary of Key CO9 Experiments

We summarise Key CO9 Experiments here. There are a great number of experiments and we will highlight the most important of these here where to find them on MASS etc. Broadly they are split into two sets P0.x (NEMO versions, Forcings, GLS) and P1.x (Bathy,WAD,Vertical Coord)

May 2023: CO9p2.0_AMM15 used to be called CO9p1.5c_AMM15. But to avoid confusion we don't ever use the old name

The P0.x Set

This is the original set of Experiments start at P0.0 which is a repeat of Jenny's CO7 run but with 4.0.4 code base.

For longer details see:

https://github.com/JMMP-Group/CO_AMM15/wiki/Co9-Trial-AMM15-Rose-suite-summary

Experiment	What is it	Rose Id	Mass Location	Mass Ownership
P0.0	CO7 but in 404	u-cb676	:/crum/xu-cb676	david.storkey
P0.1b	FES Tides	u-ce198	:/crum/xu-ce198	david.storkey
P0.2	Baltic SSH	u-cc161	:/crum/xu-cc161	david.storkey
P0.3	Baltic SSH Off	u-cc447	:/crum/xu-cc447	david.storkey
P0.4	Change of EOS, only ran part of period	u-cc321	:/crum/xu-cc321	david.storkey
P0.5c	Atlantic 3D UV specified,Tra FRS, LN_FULL_TRUE	u-cd223	:/crum/xu-cd223	david.storkey
P0.6	update GLS options	u-cc776	:/crum/xu-cc776	david.storkey
P0.7	ERA5 SBC, ln_ECMWF	u-cc945	:/crum/xu-cc945	david.storkey
P0.7b	ERA5 SBC, ln_NCAR	u-cd708	:/crum/xu-cd708	david.storkey
P0.8	GLS+ERA5(ln_ECMWF)	u-cd400	:/crum/xu-cd400	david.storkey
P0.9b	GLS+ERA5+3DUV ATL +FES	u-cd513	:/crum/xu-cd513	david.storkey

Out of the above the most important Experiments are:

• Tides: P0.0 Vs P0.1b
• GLS Effect : P0.0 Vs P0.6
• ERA5 EFFECT: P0.0 Vs P0.7
• Combined GLS/ERA5 : P0.0 Vs P0.8

P1.x Experiments, culminating in final P2.0

Here we move onto New Bathymetry, W&D and New ME coordinates.

For the Bathy there was a whole host of experiments with tides and different combinations of Gebco and Emodnet.

We settled on a combination of Gebco in the deep, EMODNET in the mid and GEBCO in the very shallow, this of course can be iterated on in the future.

[Add link to notes on that here]

Here we cut these down to a small set of experiments which we probably want to collapse down further

experiment	mass location	Effect
P1.0	:/crum/xu-cr504	Effect of base code change (Compare with P0.0)
P1.1	:/crum/xu-cr503	Effect of WAD with old bathy
P1.2	:/crum/xu-cp812	Effect of New Bathy G-E-G
P1.3	:/crum/xu-cp815	Effect of FES with new Bathy
P1.4	:/crum/xu-cr934	Effect of new Coordinate
P1.5	:/crum/xu-cs114	Effect of new Coordinate + ERA5+GLS
P1.5b	:/crum/xu-cs317	OLD Coordinate + ERA5+GLS
P2.0	:/crum/xu-ct872	As 1.5b but correctly ordered baltic boundary coordinate (originally labelled p1.5c). Enda's version, location at risk. May'23
P2.0	suite name: u-cu674	Diego's more recent, reproducible and widely shared, suite name. Would produce the above Enda output if run. June'23

Ownership of above currently endas, will hand over to Diego, Added James read access to the above

• For Tides we may collapse the effect of WAD and BAthy into one e.g. P1.3
• Could Compare that with P0.0 all at once instead of intermediate FES comparison P0.1b
• Effect of ME P1.4

Further experiments P1.5, P1.5b are adding in effect of ERA5/GLS with new bathy etc.

P1.5b (revert to SF vertical coords) is in case P1.5 (w/ ME coords) does not meet previous standards.

NB The ME coords in P1.5 can be further refined. Therefore we revert to SF coords (P1.5b) while refinement is in progress. In the process a bug was introduced in the implementation of the Baltic Boundary. This is fixed with the final version, P2.0. (P1.5b is saved incase the error can teach us something.)

CO9p2.0_AMM15 is locked down for operational implementation - this vesion has been updated to use TEOS10 as default. Similar to P0.4, the restarts and lateral forcing have not been updated to reflect this. Users must update forcing to conservative temperature and absolute salinity for full consistency.