CKO



Users Guide for CLIO

Parameters
Before running the model you can change the default paramter settings by editing the file run.param. Here in the input, output paramter tables the listed parameters are mostly used. They form only a subset of the total set of paramters in the file run.param.


The input parameters of the clio model.
Input Parameter Description Default Value
dts Time step for scalars 86400
dtu Time step for baroclinic mode 10800
dtb Time step for barotropic mode 300
nitrun Number of main iterations of the model 36000
kinput 0/2 restart from binary fiele. 1/3 restart from netCDF file 0
koutpu 0/2 output to binary fiele. 1/3 output to netCDF file 0
kstart 0 ocean at rest, no sea-ice. 1 follow up a run. 3 ocean not at rest, sea-ice prescribed 1




The output control parameters of the clio model.
Output Parameter Description Default Value
nsav Write restart file every nsav iterations 360
ninfo Write information in evolu every ninfo iteration 30
ntmoy Average over ninfo iterations (1 or 2) or not (0) 1
nwjl Frequency of output local daily values (year) 1
nwm Frequency of output monthly means (year) 1
nwa Frequency of output annual means (year) 1
nwtom Output monthly mean U,V,T,S fields on all levels (1) or not (0) 0
nwtoa Output yearly mean U,V,T,S fields on all levels (1) or not (0) 0
nwtest 0: write output in years:nw(..), 2*nw(..), ... 1: write output in years:1, nw(..)+1, 2*nw(..)+1, ... 0
nwtal Write whole period monthly means (1) or not (0) 1


Input Files
The input files that are required to run the clio model are listed in the table below.


The input files of the clio model.
Input File Description
run.param Set input, output parameters
output.param Set paramter for output
dynami.param Set ice dynamic paramters
thermo.param Set ice thermodynamic parameters
rest.om Restart file for clio
cpointj.dat Asci file contains points for ice local daily output

Output files
The program creates the several output files in which it stores the results of the simulation. These files are listed in the following table.


The output files created by the clio model. * need to change sources code to make selection
Output File Contents
cresum.dat Monthly mean outputs(variable selected in output.param)
cresua.dat Yearly mean outputs (variable selected in output.param)
cresal.dat Whole period monthly mean outputs (variable selected in output.param)
cresujg.dat Ice global daily outputs
cresujl.dat Ice local daily outputs
crestm.dat Monthly mean U,V,T,S global fields on all levels
cresta.dat Yearly mean U,V,T,S global fields on all levels
diagoc0.dat Monthly or yearly mean T,S in 9 basins. Sea-ice area, volume etc.*
diagoc0.ctl Grads control file for diagoc0.dat
evolu Diagnostic variables from ocean and sea-ice
heatsaltflux.dat Monthly or yearly mean meridional heat and salt fluxes in 4 basins*
heatsaltflux.ctl Grads control file for heatsaltflux.dat
stream.dat Monthly or yearly mean meridional overturning stream functions in 4 basins*
stream.ctl Grads control file for stream.dat
correcw.dat Correction for fresh water flux. This file serves as an input for the next follow up run
mouchard ASCI file contains parameter settings and run time information


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