ECCO2 Liens
===========

Action items:
=============

1. Separate callibration of sea-ice parameters (albedos, drags, ice strength,
   lead closing parameter, etc.) in Arctic and Weddell Domains.

2. Optimized values from above to be applied to global cube-sphere.

3. GM-Redi will be turned off from now on.

4. These forcing fields, initial conditions, and model parameters will be used
   to drive a higher-resolution (sub-10-km) global integration.  New grid is being
   prepared by Chris Hill.

5. Working with Baylor on implementing his parameterization of
   restratification.

6. Jean-Michel will implement downslope parameterization.

7. An is calibrating salt plume parameterization.

8. Michael is improving ice shelf representation.

9. Need to start testing Winton ice thermodynamics.

10. Need to plan on extending optimized solution to present.

11. Optimize 2002-2007
    for this purpose, one of the experiments should be QuikSCAT winds
    http://dss.ucar.edu/datasets/ds744.4/

12. Dushaw requested output interpolated on 1/6th-deg grid so as not to
    loose resolution and biweekly T and S for higher temporal resolution

13. SBO diagnostics for cube sphere; send time series to Richard Gross

14. tidal forcing as per Brian Arbic's message of 3/1/8 (Todo, ECCO2)

15. atmospheric pressure forcing

16. shortwave absorption forcing from SeaWIFS
    (see Manizza's 4/16/7 messages in Todo, ECCO2)

17. comparison to and constraints from INSTANT data
    http://www.marine.csiro.au/~cow074/instantdata.htm

18. AVISO altimetric maps are corrected for barotropic signals, which are
    included in ECCO2 solution.  It would be better to use along-track
    data as produced by Akiko.  See Victor's "May 15, 2008 6:53:35 PM" e-mail.

19. List of extra diagnostics: high-frequency mooring locations,
    advection/diffusion terms, etc. (Tong and Michael).

20. Winton thermodynamics callibration.

21. sea-ice age tracers

22. short term (seasonal) predictions of sea ice extent

23. understand why HEFF/AREA can give values up to 10^43 ?

24. Use ERS/QSCAT/ASCAT winds to drive the model

25. Get hold of new ECMWF reanalysis for driving the model


Follow through:
===============

1. Victor reported interpolation problems for bottom pressure.

2. Denis reported weird deep currents in Labrador Sea. The pattern becomes noisy at about    
   2200m. See figure /skylla/meeting/2008_04_01/Velocity_Canada_Greenland_cube78.tif

3. Martin reported large negative snow in pickup_seaice.0000000216.cube78
   around Antarctica.  As a quick temporary fix use initial conditions from cube76

4. Denis reported that the Zapiola Anticyclone, a quasi-permanent feature in the Argentine 
   Basin, is absent in cube78 while it is present in cube37. Eddy kinetic energy for cube37 
   is comparable with altimetry while EKE for cube78 is too low. Perhaps, the application of 
   GMRedi starting from cube66 is responsible for that. The anticyclone vanished in cube66 
   (GMRedi is ON) and reappeared in cube71 (GMRedi is OFF). The impact of the bottom 
   topography change is found insignificant.
   See PPT file: /skylla/data1/meeting/2008_04_01/dvolkov_ecco2_01apr2008.ppt
=> GMRedi will be turned off in future integrations.

5. Denis reported that the use of relative winds significantly reduces eddy kinetic energy.
 See /skylla/data1/meeting/2008_07_22/dvolkov_ecco2_22july2008.ppt


Criticality High:
=================

1. Callibration of air-ice-ocean drag and summer/winter ice/snow and water
   albedos

2. Greenland Sea deep mixed layers and lack of restratification
   Possible fix: Baylor and Raf's restratification parameterization

3. lack of downslope currents
   possible fix: Jean-Michel's downslope package

4. Arctic stratification
   possible fix: An's salt plume package

5. Southern Ocean water masses
   possible fix: relaxation at ice shelf cavity outlets

6. Mode water formation
   Possibly helped by Raf's submesoscale parameterization

7. Florida Strait transport too weak, 27 Sv in c78 vs 32 Sv observed with
   cables.  Phase of signal shifted relative to data.


Criticality Medium:
===================

1.Indonesian Throughflow, possibly too weak during El Nino
see slide 7 in
http://ecco2.jpl.nasa.gov/meetings/2008/OSM08/Lee.ppt
may be related to weak sea level rise in warm pool
see slide 2 in
http://ecco2.jpl.nasa.gov/data1/meeting/2008_03_18/hzhang_0318.pdf
possible causes: winds too weak or bulk-formula inappropriately calibrated for
this wind regime?

2. eddy variablity of Kuroshio too southward?
see slide 2 in
http://ecco2.jpl.nasa.gov/data1/meeting/2008_03_18/hzhang_0318.pdf

3. Aghula eddy variability too narrow to southwest of South Africa
probable cause: lack of resolution

3a. Denis also reports that Azores current is too narrow, also probably due to
lack of sufficient eddy variability.

4. Sea level trend too strong south of Greenland
see slide 2 in
http://ecco2.jpl.nasa.gov/data1/meeting/2008_03_18/hzhang_0318.pdf
and slide 2 in
http://ecco2.jpl.nasa.gov/data1/meeting/2008_03_18/volkov_ecco2_18march2008.ppt

5. lack of sensible heat storage in sea ice
   calibrate Winton thermodynamic package