Time Settings for Data

[Jeffrey Duda]

Jason,
Download the data either in netCDF or GRIB format.  If you download into
netCDF you can either run the WRF Post Processor or ARW Post on it to get a
.ctl file.  If you download it as GRIB data, then just run grib2ctl.pl on it
(i.e., ./grib2ctl.pl (GRIB file) > (name of .ctl file you want to make).
Then adjust the times in the TDEF line of the file, then save it and run
gribmap -e -i (.ctl file).  That will create a .idx file that will allow you
to view the contents of the GRIB file in Grads.  Feel free to send me a
message individually if you have more questions on this.  Hopefully this
helps.

Jeff Duda

On Thu, Jan 21, 2010 at 2:21 PM, Jason Snyder <jmssnyder at ucdavis.edu> wrote:

> I cannot find a .ctl file for this data set.  I got it from the following
> website:
>
>
> http://portal.nccs.nasa.gov/cgi-lats4d/webform.cgi?&i=GEOS-5/yotc/0.25_deg/assim/inst3_3d_aer_Nv
>
> I tried changing the hours from 3 to 0 there but I got buggy files that do
> not open in GrADS. I could not find a control file. Can I make one and
> redefine TDEF?  If so how?
>
> On Thu, Jan 21, 2010 at 12:15 PM, Jeffrey Duda <jdduda at iastate.edu> wrote:
>
>> I tried it out on one of my own .ctl files and it worked just fine.
>> Realize that you won't be able to plot data outside the time range of the
>> initial data, but it syncs up the times just fine.
>>
>>
>> On Thu, Jan 21, 2010 at 2:12 PM, Jeffrey Duda <jdduda at iastate.edu> wrote:
>>
>>>
>>> Jason,
>>>
>>> Have you tried simply changing the TDEF line in the .ctl file to the time
>>> you want?
>>>
>>> Jeff Duda
>>>
>>>
>>> On Thu, Jan 21, 2010 at 2:06 PM, Jason Snyder <jmssnyder at ucdavis.edu>wrote:
>>>
>>>> I tried the script but how do I get it to turn the date to a number?  I
>>>> ran this script and it does not seem to do anything except create the text
>>>> file date.txt, which shows the date as December 31 2008 0 hours.  when I
>>>> enter
>>>> ga-'>set t 1
>>>>
>>>> I still get the date
>>>> Time values set: 2009:1:1:3 2009:1:1:3,
>>>>
>>>> where I would like it to be
>>>>
>>>> Time values set: 2009:1:1:0 2009:1:1:0., which is what the other netcdf
>>>> file has.
>>>>
>>>>
>>>> Nothing has really changed in terms of the time settings when I used
>>>> this script.  How do I use it?  Do I have to run it on both .nc files I want
>>>> to use and then I can use them together?
>>>>
>>>> Let me know.
>>>>
>>>> Thank,
>>>>
>>>> Jason
>>>>
>>>>
>>>> On Thu, Jan 21, 2010 at 11:10 AM, eliav schmulewitz <eliavs at gmail.com>wrote:
>>>>
>>>>>
>>>>>
>>>>> On Thu, Jan 21, 2010 at 9:07 PM, eliav schmulewitz <eliavs at gmail.com>wrote:
>>>>>
>>>>>>
>>>>>> Jason
>>>>>>
>>>>> Hi again
>>>>> i found the old script i wrote here is the part that turns string date
>>>>> to number:
>>>>> '
>>>>>   'q time'
>>>>> date=subwrd(result,3)
>>>>> hour=substr(date,1,3)
>>>>> day=substr(date,4,2)
>>>>> month=substr(date,6,3)
>>>>> year=substr(date,9,10)
>>>>> '!date -d 'date' +%m >> date.txt'
>>>>> a=read('date.txt')
>>>>> month1=sublin(a,2)
>>>>> '
>>>>>
>>>>>> eliav
>>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Jeff Duda
>>> Iowa State University
>>> Meteorology Graduate Student
>>> 3134 Agronomy Hall
>>> www.meteor.iastate.edu/~jdduda <http://www.meteor.iastate.edu/%7Ejdduda>
>>>
>>
>>
>>
>> --
>> Jeff Duda
>> Iowa State University
>> Meteorology Graduate Student
>> 3134 Agronomy Hall
>> www.meteor.iastate.edu/~jdduda <http://www.meteor.iastate.edu/%7Ejdduda>
>>
>
>


-- 
Jeff Duda
Iowa State University
Meteorology Graduate Student
3134 Agronomy Hall
www.meteor.iastate.edu/~jdduda
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