III.A /JEFF/ccm2/O9AMIPc2
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III.A Prototype-CCM3 T42 15-Year (79-93) AMIP-SST Simulation: /JEFF/ccm2/O9AMIPc2


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/O9AMIPc2 is a 15-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 the Standard AMIP T42 climatological SST values from Dec 78 to Dec 88 and COADS data for Jan 89 to Sep 93.

/JEFF/ccm2/O9AMIPc2 covers the period from 17 December of year 78 to 1 September of year 93. This is a branch run from 16 Dec of year 00 of a 4.5 month spinup run ( 01 Sep to 16 Dec of year 00) /JEFF/ccm2/O9AMIPc0, which 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/O9AMIPc2 are:

      BNDTI  = '/ccm2/T42/tibds',
      BNDTVS = '/JET/amip/datasets/Dec78-Sep93.global.sst',
      BNDTVO = '/ccm2/T42/ozn',
      fsurdat = '/crestone/u1/bonan/lsm/datasets/som/surfdat'
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/O9AMIPc2 covers the period from 17 December of year 78 to 1 September of year 93. 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/O9AMIPc2/hist/mm-yy 
where mm is a two digit month (mm = 01, 02, ..., 12) and yy is a two digit year (yy = 79, 80, ..., 93).

The MSS pathnames for the Primary (monthly-averaged) output data from this case are:
     /JEFF/ccm2/O9AMIPc2/hist/hannnn 
where nnnn = 0001, 0002, ..., 0179

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.


Detailed Information
Listing of all post-processed MSS datasets.
More details about the monthly-averaging analysis of CCM3 data.
Return to Table of Contents for this Case.

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