Project:

  Add data cycling to the data ocean model (docn) and thermodynamic
  ice model (csim)

Mission:

  Have the ability to cycle through specified sea surface temperature
  datasets in CCSM runs with consistent ice cover.

Goals:

  Perform software engineering to add data cycling capability to docn
  and csim in a consistent way.

  Have code accepted by the model developers and users so that it can
  be added to the repository resulting in a new capability for CCSM.

Motivation:

  Have the capability of performing very long biogeochemical CCSM3
  simulations using limited sea surface temperature datasets and
  consistent thermodynamic ice cover globally.  This capability is
  required for carbon and nitrogen cycle spin up of models for C4MIP
  experiments.

Authority:

  Mariana Vertenstein and John Drake

Project Lead(s):

  Forrest Hoffman, Julie Shramm, and Brian Kauffman

Implementation Plan:

    I. Obtain latest thermodynamic ice (csim) code and modify it to cycle
       through a netCDF ice dataset.

   II. Modify the data ocean model (docn) in a consistent way to cycle
       through a netCDF SST dataset.

  III. Verify correct operation by running models separately then together
       through the flux coupler.

   IV. Get code modifications reviewed, and make suggested changes for
       acceptance into head model branches.

    V. Check in new codes to the CVS repository.

Resources:

             I   II  III   IV    V
          ========================
  Forrest   40   40   80   40    8  ~hours
    Julie   10        10   10
    Brian        10   10   10
           ---  ---  ---  ---  ---
    Total   50   50  100   60    8

    Total man months:  1.83

Timeline:

    I. October 1 - October 25
   II. October 1 - October 25
  III. October 25 - November 1
   IV. October 25 - November 1