[gradsusr] Regarding Temporal Correlation

Wed Mar 30 06:48:45 EDT 2016

the method you mentioned is working quite well with the data I have.

You just try the following

define tsvar=z          instead of  ts_var=z   if you do not run the .gs
file.

Hope this helps you.

Regards,
Kishore

*PhD student in climate science,*

*National Institute of Technology, Rourkela,*

*India- 769008*

*Phone: +91-8908671881http://www.researchgate.net/profile/Kishore_Ragi
<http://www.researchgate.net/profile/Kishore_Ragi>https://in.linkedin.com/in/kishoreragi
<https://in.linkedin.com/in/kishoreragi>http://kishoreragi.webnode.com/
<http://kishoreragi.webnode.com/>*

On Wed, Mar 30, 2016 at 8:18 PM, Girija Kalyani <kalyani at ncaor.gov.in>
wrote:

> Thanks for the response Mr.Kishore. I'm initially trying out to do what
> they did with the sample file.
> They have 'z' variable representing geopotential height.
> But the script isn't working with their data as well.
> Once it works well with sample I wanted to shift to my data.
> I have sea-ice, wind, MSL, SLP, Albedo data for past 36 years.
> All of same spatial and temporal extent.
> I wanted to perform spatio-temporal correlational analysis with atleast 2
> variables (of those that are mentioned above).
> I hope I was clear enough.
> Many Thanks
>
>
>
>
> ------------------------------
> *From:* gradsusr-bounces at gradsusr.org on behalf of Kishore Ragi
> *Sent:* Wednesday, March 30, 2016 12:57 PM
>
> *To:* GrADS Users Forum
> *Subject:* Re: [gradsusr] Regarding Temporal Correlation
>
> Hi,
>
> z is their variable (geopotential height). They have defined *ts_var for
> a specific location for the period of time. Then they tried to correlate
> that point with *
>
>
>
> *'set lat 0 90'     'set lon 180 360'   region. You see what you are
> trying to do. If it is same you are trying to, its fine (but choose the
> variable that you have in the file). If not, lets us know what you want so
> that one of the group members may help you out. *
>
> *Regards, *
>
> *Kishore *
>
>
>
>
> *PhD student in climate science, *
>
> *National Institute of Technology, Rourkela, *
>
> *India- 769008 *
>
>
>
>
>
>
> *Phone: +91-8908671881 <%2B91-8908671881>
> http://www.researchgate.net/profile/Kishore_Ragi
> <http://www.researchgate.net/profile/Kishore_Ragi>
> https://in.linkedin.com/in/kishoreragi
> <https://in.linkedin.com/in/kishoreragi> http://kishoreragi.webnode.com/
> <http://kishoreragi.webnode.com/>*
>
> On Wed, Mar 30, 2016 at 5:52 PM, Girija Kalyani <kalyani at ncaor.gov.in>
> wrote:
>
>> Oh Yes.
>> I check the variables the similar way. And Im aware that this variable is
>> not in the file.
>> But it is given in this link (*http://gradsaddict.blogspot.in/2013/05/tutorial-use-tcorr-function-to-create.html
>> <http://gradsaddict.blogspot.in/2013/05/tutorial-use-tcorr-function-to-create.html>*
>> )
>> that time-series should be defined this way.
>>
>>
>> *Girija Kalyani *
>> *Junior Research Fellow*
>> *Division of Polar Remote Sensing*
>> *NCAOR*
>>
>> ------------------------------
>> *From:* gradsusr-bounces at gradsusr.org on behalf of Kishore Ragi
>> *Sent:* Wednesday, March 30, 2016 10:31 AM
>>
>> *To:* GrADS Users Forum
>> *Subject:* Re: [gradsusr] Regarding Temporal Correlation
>>
>> check the variables in the file using
>>
>> q file
>>
>> If you find z as one of the variable, you should not have any problem
>> with your code.
>>
>> Also, I am curious to know why you want to define
>>
>> *ts_var=z *
>>
>> *Regards, *
>>
>> *Kishore *
>>
>>
>> *PhD student in climate science, *
>>
>> *National Institute of Technology, Rourkela, *
>>
>> *India- 769008 *
>>
>>
>>
>>
>>
>>
>> *Phone: +91-8908671881 <%2B91-8908671881>
>> http://www.researchgate.net/profile/Kishore_Ragi
>> <http://www.researchgate.net/profile/Kishore_Ragi>
>> https://in.linkedin.com/in/kishoreragi
>> <https://in.linkedin.com/in/kishoreragi> http://kishoreragi.webnode.com/
>> <http://kishoreragi.webnode.com/>*
>>
>> On Wed, Mar 30, 2016 at 2:46 PM, Girija Kalyani <kalyani at ncaor.gov.in>
>> wrote:
>>
>>> Thanks for the response Mr.Stephen.
>>> I tried removing the underscore as directed, but still the error did not
>>> change.
>>> It produces
>>> Syntax Error: Invalid Operand
>>> 'z' is not a function name
>>> Define Error: Invalid Expression
>>>
>>>
>>> *Girija Kalyani *
>>> *Junior Research Fellow*
>>> *Division of Polar Remote Sensing*
>>> *NCAOR*
>>>
>>> ------------------------------
>>> *From:* gradsusr-bounces at gradsusr.org on behalf of Stephen McMillan
>>> *Sent:* Tuesday, March 29, 2016 5:54 PM
>>> *To:* GrADS Users Forum
>>> *Subject:* Re: [gradsusr] Regarding Temporal Correlation
>>>
>>> Girija,
>>>
>>> Remove the "_" from your variable name.  GrADS doesn't like that or
>>> other special characters (numerals are okay if not the first character).
>>>
>>> In the future, when you have an error, please say what the error was.
>>> This was an easy case, but sometimes one could only guess.
>>>
>>> Good luck--
>>> Stephen Mc
>>>
>>> On Tue, Mar 29, 2016 at 7:41 AM, Girija Kalyani <kalyani at ncaor.gov.in>
>>> wrote:
>>>
>>>> Good Evening,
>>>>
>>>> I'm using Grads 2.0.2 on Windows desktop.
>>>> I wanted to perform temporal correlation as given in the Gradsaholic
>>>> website
>>>> *http://gradsaddict.blogspot.in/2013/05/tutorial-use-tcorr-function-to-create.html
>>>> <http://gradsaddict.blogspot.in/2013/05/tutorial-use-tcorr-function-to-create.html>,*
>>>> http://gradsaddict.blogspot.in/2013/05/tutorial-use-tcorr-function-to-create.html,
>>>> but I get an error when the time series variable is defined.
>>>> Given
>>>>
>>>> *set t 100 220*
>>>> *set lat -90 -50*
>>>> *set lon 0 360*
>>>> *ts_var=z*
>>>>
>>>> I have defined the settings as mentioned above, where the last line
>>>> shows an error.
>>>> Im unable save the timeseries in the variable.
>>>>
>>>> Any help is highly appreciated!
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>
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>>>
>>
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