Time | Discussion Leader | Topic |
---|---|---|
3:30-3:50 | Mat Maltrud | Status of CORE-II simulations
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3:50-4:10 | Milena Veneziani | Slides: milenaMPASAnalysis_Nov2016.pdf /wiki/spaces/OCNICE/pages/86442069
|
4:10-4:30 | Mark Petersen | Ocean circulation in ice shelf cavities
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4:30-4:50 | Todd Ringler | Status of science papers/wiki/spaces/OCNICE/pages/24478868
|
4:50-5:10 | Steve Price | /wiki/spaces/OCNICE/pages/30442728 |
30 minutes | we have at least 30 minutes for other discussion topics |
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View file name ocean-ice-papers.pdf height 250
- Expect to use last 30 min for discussions with Chris Golaz on how to best support coupled model with alpha9 / alpha10 / beta1 (discuss process)
- Mathew Maltrud discussed eddy closure 60to30 runs for low-res water cycle / BGC (/wiki/spaces/OCNICE/pages/102039847)
- ocean-ice core circulations having trouble to have robust meridional overturning circulation (MOC) without salinity restoring
- some improvement with salinity restoring, but additional strength of restoring may be required as demonstrated from RAPID array
- increase in piston velocity reduces drift in salinity
- note, no ocean model in world that doesn't require salinity restoring (e.g., precipitation independent of ocean model without feedback); debate continues over use of restoring timescale
- sea surface temperature drift is minimal, no restoring needed for sst
- minimal cost at higher resolution (1440 cores on eos, 6 SYD)
- BGC version only run for 1 yr, can couple 1 to 2 way with sea ice BGC to add 3-4 cost in individual components above physics-only configuration. Configurations current in testing by Shanlin Wang (Unlicensed) with Keith Moore et al
- MARBL SciDac project with NCAR with Matt Long for v2
- Hard to get anything higher resolution than 60to30 through queue at reasonable SYD because of queue times and node failures
- 16to5 and 18to6 have gone through a few times at 64k processors
- David C. Bader: "don't submit additional jobs on titan (beside Mathew Maltrud and Jon Wolfe)"
...
- Todd Ringler (Unlicensed): science papers
- papers compelling and ready to be written but they are awaiting simulation data (esp. high profile papers)
- model development papers already started
- many papers can be written with CORE-II G case
- goal is to move to coupled system dynamics, e.g., Julie McClean's Indian dipole paper requires high-res coupled model
- Are simulations producing data needed to write papers?
- Should be working on model development and writing papers concurrently
- papers compelling and ready to be written but they are awaiting simulation data (esp. high profile papers)
- v2/v3 Development /wiki/spaces/OCNICE/pages/30442728 (activities not necessarily staged, but needs to be done following aging of v1 activities)
- Ocean
- maintenance
- comp Phys
- vertical coord.
- mesoscale eddy closure
- improved transport scheme (LEAP- reasonably well but struggles with consistency and algorithmic issues for horizontal / vertical transport); performance still challenge but surmountable
- Land ice
- wetting / drying
- sea level change issues
- self attraction
- isostatic effects
- improved calving schemes (physics-based for advance / retreat of front)
- improved spin-ups / initialization techniques
- improve basal boundary condition with subglacial hydrology changing which parts of ice sheet discharge into ocean
- Coastal modeling
- 2 new university projects tied to MPAS-Coastal
- hope is to build out coastal modeling capability over 3-5 years (streams of funding outside ACME likely)
- ACME sea level rise impacts require MPAS-Coastal
- wave model interesting at higher resolution (e.g., storm surge needed)
- BGC
- Next gen arch.
- Sea ice
- snow model
- changes needed for advancing front for land ice / sea ice interaction (e.g., ice bergs)
- ice bergs / sea ice buoy simulator
- coupling
- salt transfer from ocean to sea ice to be improved
- wetting / drying needed for dynamic land ice / foot print of ice sheet to change and accommodate changing sea ice, ocean, atmospheric interactions
- Ocean