III.D /JEFF/ccm2/O9nmc02
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III.D Prototype-CCM3 T42 45-Year (49-95) NMC-SST Simulation: /JEFF/ccm2/O9nmc02

Table of Contents for this Case:

 A. Case Description.
B. Boundary Datasets.
1. Complete namelist input.
C. Output history Datasets.
1. Listing of Primary (monthly-averaged) header and available fields.
2. Listing of Primary (monthly-averaged) MSS datasets.
3. Listing of Auxiliary (daily-averaged) header and available fields.
4. Listing of Auxiliary (daily-averaged) MSS datasets.

A. Case Description.

/JEFF/ccm2/O9nmc02 is a 45-year T42 seasonal simulation, using analyzed monthly averaged SSTs, run with Prototype-CCM3 (built with the mv library). This run in NOT bit-for-bit equivalent to the standard CCM3 model. The SST data set is a 45 year analyzed dataset from NMC.

/JEFF/ccm2/O9nmc02 covers the period from 18 December of year 49 to 02 May of year 95. This is a branch run from 18 Dec of year 00 of a 4.5 month spinup run ( 01 Sep to 18 Dec of year 00) /JEFF/ccm2/O9nmc00, which was started from /JET/datasets/T42/CCM3SEP1 and default land surface model values.

Note: The MSS pathnames of datasets output from the Prototype-CCM3 model is not the default CCM3 form. Rather it is the default CCM2 form with "ccm3" replacing "ccm2" in the second level of the pathname.

B. Boundary Datasets.

The boundary datasets used in Case /JEFF/ccm2/O9nmc02 are: 

      BNDTI  = '/ccm2/T42/tibds',
      BNDTVS = '/JEFF/sst-monthly/ccm3/nmc/T42.Dec1949-May1995',
      BNDTVO = '/ccm2/T42/ozn',
and resolution parameters: 
      HRES  T42              PCNST   1 
      PLEV   18              PTRM   42 
      PLON  128              PTRN   42 
      PLAT   64              PTRK   42

Detailed Information
Complete namelist input.
Return to Table of Contents for this Case.

C. Output History Datasets.

/JEFF/ccm2/O9nmc02 covers the period from 18 December of year 49 to 1 May of year 95. Two different output datasets were written, a Primary history tape and Auxiliary history tape.

The Primary history tapes contain the standard set of CCM3 history fields, output as monthly averages for each month of the run. Each monthly average is valid for the current month and current year of the date encoded into the MSS filename. The date in the history tape header will be the first timestep of the first day of the next month (i.e. the monthy-average tape named .../01-79 contains model data averaged over the month of January 79. The averaging period extends from the first timestep of the first day of January of year 79 through the first timestep of the first day of February of year 79. The date in the history tape header will be 00Z 1 February 79).

The Auxiliary history tapes contain a number of history fields output as 24-hour averages for each day of the run. Each daily average is valid for the previous 24 hours (i.e. the daily-average written at 00Z Jan 15 is the average for all timesteps during the time period of the 1st time-step after 00Z Jan 14 through 00Z Jan 15).

Both the Primary and Auxiliary data are packed 4-to-1. All output data from this run was written in CCM2 history tape format.

The MSS pathnames for the Primary (monthly-averaged) output data from this case are: 
     /JEFF/ccm2/O9nmc02/hist/mm-yy
where mm is a two digit month (mm = 01, 02, ..., 12) and yy is a two digit year (yy = 49, 80, ..., 95).

The MSS pathnames for the Auxiliary (daily-averaged) output data from this case are: 
     /JEFF/ccm2/O9nmc02/hist/hannnn
where nnnn = 0001, 0002, ..., 0552

Detailed Information
Listing of Primary (monthly-averaged) header and available fields.
Listing of Primary (monthly-averaged) MSS datasets.
Listing of Auxiliary (daily-averaged) header and available fields.
Listing of Auxiliary (daily-averaged) MSS datasets.
Return to Table of Contents for this Case.
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