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This page is a reduction of the/wiki/spaces/OCNICE/pages/30442728.

Each section (ocean, sea-ice, land-ice, coastal, coupler) get 15 minutes.

Goal of each 15 minute segment is:

  1. to ID the most important v2 feature(s)
  2. ID who is willing take the lead in pulling together a design document for feature(s)

ocean (Mark Petersen)

  • performance
    • Change number of layers to 64 or 128 for vector performance
    • Always loop vertically to nVertLevels, or multiples of 8, with a mask ("Strip-mining")
    • reduce excessive diagnostics computations, other items, see: /wiki/spaces/OCNICE/pages/82673686
  • analysis
    • Continued work on analysis members and MPAS Analysis
    • smooth automated implementation in ACME, working at high resolution.
  • non-Boussinseq / TEOS-10
    • needed for steric SLR
    • expected for next generation ocean models
  • wetting-drying / massless layers
    • needed for ocean / land-ice coupling, moving grounding line
    • needed for coastal inundation
  • high-order pressure gradient
    • mitigates errors associated with strongly sloped layer interfaces
  • quasi-Lagrangian vertical coordinate (regridding/remapping, hybrid vertical coordinates)
    • exploits a capability built into MPAS-Ocean
    • should improve representation / preservation of water masses
  • super-cycling of tracer transport
    • needed to make BGC more computationally tractable
  • Mesoscale eddy closure
    • funded by SciDAC3, in code base, needed to be validated in global configurations
  • thin-wall approach for bottom bathymetry
    • a great idea that we never have time to implement
  • improved vertical turbulence scheme
    • needed to get beyond KPP
  • prognostic SW penetration model
    • needed to improve ocean boundary layer representation

sea-ice (Adrian Turner)

  • Improved snow model
  • Icebergs
  • Unified ridging and form drag
  • Improved radiation extinction in snow (SNCR)
  • MPAS-seaIce buoy simulator
  • Improve salinity coupling btw ocean and sea ice
  • Remaining sea ice metrics for coupled simulations (2/9 completed)
  • Performance enhancements?
    • concurrent halo exchanges
    • equatorial grid culling in coupler

land-ice (Stephen Price)

  • Improved calving
  • spin up initialization
  • Sub-glacial hydrology and basal processes
  • Spatially-temporally varying sea-level forcing at land ice front

coupler (Jeremy Fyke (Unlicensed))

  • Couple icebergs from land ice to sea ice via coupler
  • time-variable footprint of land / ocean / sea-ice
  • Self-attraction for regional SLR

coastal ocean / coastal BGC (Phillip Wolfram (Unlicensed))

  • Tides
    • needed for estuary modeling project
  • variable time step
    • would allow two-way coupling of open to coastal system models
  • Surface wave model
    • needed for inundation modeling
    • needed for improved ocean boundary layer modeling
  • Coastal BGC - Coupled river-estuary-coastal ocean reaction eqs.
    • includes inorganic carbon chemistry
    • extending BGC into the coastal ocean system
  • Sediment transport
    • needed for the evolution of the coastline and BGC processes



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