Dear All<div><br></div><div>I am using CDO for calculating daily and monthly files for RegCM4.2 outputs i.e. ATM, RAD and SRF files.</div><div>After the postprocessing, the monthly files suppose to be of <b>1 time step</b> but the .ctl files shows <b>2 time step </b>and both the time steps shows different values.</div>
<div>I am totally confuse which time step to use whether 1st or 2nd. Please suggest me what to do.</div><div><br></div><div>I am using the following command for monthly average</div><div><br></div><div>cdo monavg <a href="http://India_ATM.2002010100_pressure.nc">India_ATM.2002010100_pressure.nc</a> <a href="http://India_ATM.200207.nc">India_ATM.200207.nc</a></div>
<div><br></div><div>The following is the corresponding .ctl file</div><div><br></div><div><div>dset ^<a href="http://India_ATM.200207.nc">India_ATM.200207.nc</a></div><div>dtype netcdf</div><div>undef -1e+34_FillValue</div>
<div>title ICTP Regional Climatic model V4 ATM output</div><div>pdef  118  99 bilin sequential binary-big ^India.coord</div><div>xdef   258 linear   49.47   0.24</div><div>ydef   197 linear   -5.11   0.24</div><div>zdef   11 levels  1000.0  925.0  850.0  700.0  500.0  400.0  300.0  250.0  200.0  150.0  100.0</div>
<div>tdef        2 linear 18Z31jul2002    6hr</div><div>vectorpairs u,v s01u10m,s01v10m</div><div>vars   14</div><div>xlon=&gt;xlon 0 y,x Longitude at cross points (degrees_east)</div><div>xlat=&gt;xlat 0 y,x Latitude at cross points (degrees_north)</div>
<div>topo=&gt;topo 0 y,x Domain surface elevation (m)</div><div>mask=&gt;mask 0 y,x Domain land/ocean mask (1)</div><div>ps=&gt;ps 0 t,y,x Surface pressure (hPa)</div><div>u=&gt;u   11 t,z,y,x U component (westerly) of wind (m s-1)</div>
<div>v=&gt;v   11 t,z,y,x V component (southerly) of wind (m s-1)</div><div>omega=&gt;omega   11 t,z,y,x Pressure velocity (hPa s-1)</div><div>t=&gt;t   11 t,z,y,x Temperature (K)</div><div>qv=&gt;qv   11 t,z,y,x Water vapor mixing ratio (kg kg-1)</div>
<div>qc=&gt;qc   11 t,z,y,x Cloud water mixing ratio (kg kg-1)</div><div>tpr=&gt;tpr 0 t,y,x Total daily precipitation rate (kg m-2 day-1)</div><div>tgb=&gt;tgb 0 t,y,x Lower groud temperature (K)</div><div>swt=&gt;swt 0 t,y,x Total soil water (kg m-2)</div>
<div>endvars</div></div><div><br></div><div><br></div><div>Thanks in advance</div><div><div><br></div><div><br></div>-- <br>Kanhu Charan Pattnayak (Research Scholar)<br>Room No.331, Block - VI<br>Centre for Atmospheric Sciences<br>
IIT Delhi, Hauz Khas<br>New Delhi - 110 016<br>India<br>
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