Hi Waheed,<div><br></div><div>Maybe you can try this in a Grads Script :</div><div><br></div><div><div>'set fwrite ^prep.grd'</div><div>'set gxout fwrite'</div></div><div><br></div><div><div>i=1951</div><div>
while(i<=2007)</div><div>'sdfopen ^**'i'**.nc'</div><div>……</div><div><br></div><div>You can take a yearly average here , and then there will be a file with 57 time steps.</div><div><br></div><div>Good luck!</div>
<div><br></div><div><br></div><br><div class="gmail_quote">2011/3/14 Waheed <span dir="ltr"><<a href="mailto:waheed.met@gmail.com">waheed.met@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div dir="ltr"><div>Dear all</div>
<div> </div>
<div> I have 57 nc files from 1951 to 2007 on monthly sum of precipitation for our region ( these files have one variable pptn). now i want to combine these files to get one file with 57 time steps such that t=1 shows the time 1957 and t=57 shows the time 2007 also i want to divide this sum in the final file with 57. how to do this any help.</div>
<div> </div>
<div>I have tried to combine these nc files through xconv software on RHL operating system it does not give any error while converting but when i go in and check the file it shows only one time step rather than 75 time steps. I have searched it on the Internet and got that CDO( climate data operator) can do it. but i am unable to install it and get it from net? how to do this? or is there any easy way to do this. because i have 57 files for each month ( i:e from January to December) .</div>
<div> </div>
<div>thanks to all in advance...</div>
<div> </div>
<div>Best regards<br clear="all"><br>-- <br></div>
<div>Waheed Iqbal</div>
<div>Meteorologist</div>
<div>Pakistan Meteorological Department</div>
<div>R & D Division, Islamabad,Pakistan.</div>
<div>+923334547814</div>
<div> </div>
<div> </div><br></div>
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