Issues regarding PIPS 3.0 (Maslowski)

Computer resources at FNMOC

  • Architecture
  • Partitions
Model configuration
  • Limited domain vs. global
  • Resolution (horz. and vert.)
  • Operational forecasts
  • Importance of having a "good ocean"
Model improvements
  • Ice mechanics/rheology
  • Ice thermodynamics
  • Coupling/drag coefficients
  • Bathymetry
  • Forcing fields / development vs. operational phase
    • High frequency
    • Horizontal resolution
    • Interannual vs. annual means (runoff, P-E)
    • Restoring vs. no restoring
Model verification
  • Distributed effort (leading to further model improvements)
  • Availablity of data
  • Data assimilation
Issue of communication/personnel involvements, development of parameterizations ready for testing and implementation in PIPS 3.0
 

Suggested Aspects of PIPS 3.0 (Semtner)

Initial Setup
 
 

  • Pan-Arctic Ice Model
  • Parallel Ocean Program with 9 km, 42 level grid
  • Efficient viscous-plastic ice model
  • Better bathymetry and ocean data
  • Better near-surface fluxes
  • Optimization for DSM architectures

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To Be Added
 
 
  • Anisotropic ice rheology
  • Multiple ice categories
  • Better ice thermodymanics
  • Improved ocean parameterization
  • Effects of fracture mechanics
  • Connections to acoustic models
  • Data assimilation methods

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Data Needs
 
 
  • ECMWF, etc. reanalysis
  • NOGAPS forcing fields
  • Precipitation / runoff / lateral b.c.'s
  • SSM/I and SAR ice concentration / velocity
  • Oceanic datasets: satellite / in-situ

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Activities and Collaborations
 
 
  • Advanced development
  • Model component integration
  • Hindcasting / evaluation
  • Comparison testing
  • Assimilation / initialization
  • Forcing strategies
  • Interactions with NOGAPS / COAMPS