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<p>* Open your netCDF file<br>
* ---------------------------<br>
'sdfopen xxxxxxx.nc'</p>
<p> </p>
<p>* Get the start time<br>
* ---------------------<br>
'set t 1'<br>
'q time'<br>
startTime = subwrd(result, 3)</p>
<p> </p>
<p>* Get end time requires you to find the number<br>
* of time steps in the data set first<br>
* ---------------------------------------------------------<br>
'q ctlinfo'<br>
ctlRes = result</p>
<p> </p>
<p>* Loop through the result of 'q ctlinfo'<br>
* to find the line that starts with 'tdef'<br>
* ---------------------------------------------<br>
line = 1<br>
found = 0<br>
while (!found)<br>
info = sublin(ctlRes, line)<br>
if (subwrd(info, 1) = 'tdef')<br>
handle = info<br>
found = 1<br>
endif<br>
line = line + 1<br>
endwhile</p>
<p> </p>
<p>* Variable 'handle' now contains the line that starts<br>
* with 'tdef'<br>
*<br>
* Second word on the line is the number of time steps<br>
* -----------------------------------------------------------------<br>
numOfSteps = subwrd(handle, 2)</p>
<p> </p>
<p>* Set time environment to last step of data set<br>
* ---------------------------------------------------------<br>
'set t 'numOfSteps<br>
'q time'</p>
<p> </p>
<p>* Grab time of last time step<br>
* ----------------------------<br>
endTime = subwrd(result, 3)</p>
<p> </p>
<p>* Write out to text file<br>
* [Here you enter the path and name of the text file<br>
* you want to output]<br>
* -----------------------------------------------------<br>
rc=write(NAME_AND_PATH_OF_TEXTFILE, 'Start time = 'startTime', End time = 'endTime)<br>
rc=close(NAME_AND_PATH_OF_TEXTFILE)</p>
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<div id="divRpF757784" style="DIRECTION: ltr"><font color="#000000" size="2" face="Tahoma"><b>From:</b> gradsusr-bounces@gradsusr.org [gradsusr-bounces@gradsusr.org] on behalf of Malleswararao Maguluri [mallesh4science@gmail.com]<br>
<b>Sent:</b> Wednesday, June 11, 2014 10:58 AM<br>
<b>To:</b> GrADS Users Forum<br>
<b>Subject:</b> [gradsusr] how to extract start date and end date using GrADS script from netcdf file?<br>
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<div>Hi,<br>
<br>
how to extract start date and end date using GrADS script from netcdf file?. I need start date and end date output in text file.<br>
<br>
</div>
<div>Waiting for your reply,<br>
</div>
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Thanks & regards, <br clear="all">
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-- <br>
<div dir="ltr">M. MALLESWARA RAO<br>
M.Tech (Atmospheric Science) & M.Sc (Physics)<br>
<br>
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