[ncl-talk] About local time (UTC+9)

[Dave Allured - NOAA Affiliate]

Oops, my mistake.  Can you please tell me whether the input file contains
numeric time coordinates, or only character time coordinates?  It is much
easier to calculate offset times if the numeric time coordinates are
already calculated.

Right after addfile, try printFileVarSummary (in, "U").  If tjhat does not
work, try printFileVarSummary (in, "UU").  The first subscript in the
variable gets you the name of the time dimension.

Then try printFileVarSummary (in, "TIME") where you replace TIME with the
actual name of the time dimension.  Then please show us the output from
only that command.

If that does not work, you can try manually searching for a numeric time
coordinate.  print (in) shows you a summary of all variables in the file.
Scroll through that list by pressing the space bar until you get to the
end.  Look for a variable with "time" in the name; a numeric type such as
double, float, or integer; and units attribute like "days since" or "hours
since".  Then show the complete printed description for that variable.

--Dave


On Wed, Feb 8, 2017 at 8:47 PM, isakhar sakhar isakhar <
isakhar.inside13 at gmail.com> wrote:

> Dear Mr.Dave
>
> By following your instruction I get complete output as in attachment
> (output.script.txt).
>
> Best regards,
> Soares
>
>
>
> On Thu, Feb 9, 2017 at 10:42 AM, Dave Allured - NOAA Affiliate <
> dave.allured at noaa.gov> wrote:
>
>> Also I see another problem.  In these two lines which I just sent, make
>> sure you have ASCII straight double quotes (") in the script before you run
>> it.  I think I sent you curly double quotes (UTF-8) by mistake.
>>
>>     time_numeric = cd_inv_string (times, "%Y%N%D%H%M")
>>     offset_times = cd_string (time_numeric, "%Y%N%D%H%M" )
>>
>> --Dave
>>
>>
>> On Wed, Feb 8, 2017 at 6:29 PM, Dave Allured - NOAA Affiliate <
>> dave.allured at noaa.gov> wrote:
>>
>>> Soares,
>>>
>>> Please insert this right below "ntimes = dimsizes(times)":
>>>
>>>     print (times(0:2))
>>>     time_numeric = cd_inv_string (times, “%Y%N%D%H%M”)
>>>     print (time_numeric(0:2))
>>>
>>>     offset = -9    ; hours
>>>     time_numeric = time_numeric - offset
>>>     offset_times = cd_string (time_numeric, “%Y%N%D%H%M” )
>>>     print (offset_times(0:2))
>>>     exit
>>>
>>> Then run it and show us the complete output, including all normal and
>>> error messages.
>>>
>>> --Dave
>>>
>>>
>>> On Wed, Feb 8, 2017 at 5:18 PM, isakhar sakhar isakhar <
>>> isakhar.inside13 at gmail.com> wrote:
>>>
>>>> Dear Mr.Rick
>>>>
>>>> That is I mean, I want to use the ntimes to call cd_string because of
>>>> my wrfout file is in UTC but I want to get the output result in UTC+9.
>>>> I have active load above my script but it does not change anything.
>>>>
>>>> Any help will appreciate,
>>>>
>>>> Regards,
>>>> Soares
>>>>
>>>> On Wed, Jan 25, 2017 at 11:29 PM, Rick Brownrigg <brownrig at ucar.edu>
>>>> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> I'm not sure what you are trying to do, but this part does not seem
>>>>> right:
>>>>>
>>>>>    do it = 0,ntimes-1                ;Loop for the time: it= starting
>>>>> time
>>>>>       time = it
>>>>>       time_numeric=cd_string(time(0),"%Y%N%D%H%M")
>>>>>
>>>>> "time" would be an integer scalar (although in NCL, all scalars are
>>>>> arrays of dimension 1, so notation like time(0) is not a syntax/semantic
>>>>> error), but time certainly will not have the requisite "units" attribute.
>>>>> Did you perhaps mean to specify "ntimes(it)" in the call to cd_string()?
>>>>>
>>>>> Rick
>>>>>
>>>>> On Tue, Jan 24, 2017 at 11:28 PM, isakhar sakhar isakhar <
>>>>> isakhar.inside13 at gmail.com> wrote:
>>>>>
>>>>>> Dear Mr.Dave
>>>>>>
>>>>>> I am very for asking a lot, I have tried my best but I still face the
>>>>>> error even I already have the line '/usr/share/ncarg/nclscripts/contrib/cd_string.ncl'
>>>>>> on my top script. I still use NCL version 6.1.2.
>>>>>>
>>>>>> I face error say:
>>>>>>
>>>>>> cd_string: The variable containing time values must have a 'units'
>>>>>> attribute.
>>>>>> fatal:Illegal right-hand side type for assignment
>>>>>> fatal:["Execute.c":8128]:Execute: Error occurred at or near line 33
>>>>>> in file script.ncl
>>>>>>
>>>>>> My script file in attachment.
>>>>>> Thanks
>>>>>>
>>>>>> regards,
>>>>>> Soares
>>>>>>
>>>>>>
>>>>>> On Wed, Jan 25, 2017 at 5:46 AM, Dave Allured - NOAA Affiliate <
>>>>>> dave.allured at noaa.gov> wrote:
>>>>>>
>>>>>>> Soares,
>>>>>>>
>>>>>>> Also show the output from print (time(0)) before you call cd_string.
>>>>>>>
>>>>>>> --Dave
>>>>>>>
>>>>>>>
>>>>>>> On Tue, Jan 24, 2017 at 1:29 PM, Dave Allured - NOAA Affiliate <
>>>>>>> dave.allured at noaa.gov> wrote:
>>>>>>>
>>>>>>>> Soares,
>>>>>>>>
>>>>>>>> The documentation for cd_string says that you must have this line
>>>>>>>> at the top of your program:
>>>>>>>>
>>>>>>>>    load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/cd_string.ncl"
>>>>>>>>
>>>>>>>> If that does not solve your problem, then please show:
>>>>>>>>
>>>>>>>> 1.  Complete console output up to the point of error.  This should
>>>>>>>> include the command to run your program, and the NCL version number.
>>>>>>>>
>>>>>>>> 2.  A complete copy of your NCL script, or a reduced test script
>>>>>>>> that just shows this error.
>>>>>>>>
>>>>>>>> --Dave
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Jan 23, 2017 at 9:28 PM, isakhar sakhar isakhar <
>>>>>>>> isakhar.inside13 at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Dear Mr. Dave
>>>>>>>>>
>>>>>>>>> I have modified the syntax to cd_string but I still face the error
>>>>>>>>> 'fatal:Undefined identifier: (cd_string) is undefined, can't continue'
>>>>>>>>>
>>>>>>>>> time_numeric=cd_string(time,"%Y%N%D%H%M")  ;; will return in
>>>>>>>>> hours since 1800-01-01 unless specified otherwise
>>>>>>>>> offset=-9    ; hours
>>>>>>>>> time_numeric =time_numeric-offset
>>>>>>>>>
>>>>>>>>> time=cd_string(time_numeric,"%Y%N%D%H%M")
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Soares
>>>>>>>>>
>>>>>>>>> On Tue, Jan 24, 2017 at 12:39 PM, Dave Allured - NOAA Affiliate <
>>>>>>>>> dave.allured at noaa.gov> wrote:
>>>>>>>>>
>>>>>>>>>> Soares,
>>>>>>>>>>
>>>>>>>>>> The function cd_inv_string is in the next NCL release.  It is
>>>>>>>>>> not available in the current release 6.3.0.  That is why you are getting a
>>>>>>>>>> syntax error.
>>>>>>>>>>
>>>>>>>>>> If your data already has date/time in numeric format as hours
>>>>>>>>>> since XXX, then you might be able to directly subtract the offset and use
>>>>>>>>>> cd_string to print the times that you want.
>>>>>>>>>>
>>>>>>>>>> --Dave
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Mon, Jan 23, 2017 at 8:07 PM, isakhar sakhar isakhar <
>>>>>>>>>> isakhar.inside13 at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Dear Mr.Dennis
>>>>>>>>>>>
>>>>>>>>>>> I have a wrfout data and it is in UTC. I want to print in my
>>>>>>>>>>> local time (UTC+9). I already have the file cd_inv_string.ncl and already
>>>>>>>>>>> load it in my top of file. I also adjust as below to the my local time but
>>>>>>>>>>> I still face the error.
>>>>>>>>>>>
>>>>>>>>>>> time_numeric=cd_inv_string(ntimes,“%Y%N%D%H%M”)  ;; will return
>>>>>>>>>>> in hours since 1800-01-01 unless specified otherwise
>>>>>>>>>>> offset=-9    ; hours
>>>>>>>>>>> time_numeric =time_numeric-offset
>>>>>>>>>>> time=cd_string(time_numeric,“%Y%N%D%H%M” )
>>>>>>>>>>>
>>>>>>>>>>> I got the error say: fatal:syntax error: line 34 in file
>>>>>>>>>>> script.ncl before or near �
>>>>>>>>>>> time_numeric=cd_inv_string(time,
>>>>>>>>>>>
>>>>>>>>>>> My file in attachment.
>>>>>>>>>>> Really appreciate for any help.
>>>>>>>>>>>
>>>>>>>>>>> Big thanks
>>>>>>>>>>> Soares
>>>>>>>>>>>
>>>>>>>>>>
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