[ncl-talk] convert the time "since seconds" to month-year

[Rick Brownrigg]

Did you add this line ath the top, as per the documentation?

load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/time_axis_labels.ncl"

 https://www.ncl.ucar.edu/Document/Functions/User_contributed/time_axis_labels.shtml





On Tue, Dec 11, 2018 at 10:21 AM Amal Inge <amalingenieur89 at gmail.com>
wrote:

> hi Carl,
> i made some modification in the script attached but I had this error;
>
> fatal:syntax error: line 49 in file xy.ncl before or near ; sets the
> correct time labels
>
> time_axis_labels(x, res, restime) ; sets the correct time labels
> ^
>
> fatal:syntax error: possibly an undefined procedure
> fatal:Syntax Error in block, block not executed
> fatal:error at line 52 in file xy.ncl
>
>
>
> Le mar. 11 déc. 2018 à 14:47, Carl Schreck <cjschrec at ncsu.edu> a écrit :
>
>> Please see
>> https://www.ncl.ucar.edu/Document/Functions/User_contributed/time_axis_labels.shtml
>> and the examples therein.
>>
>> Does it work if you uncomment line 49? If not, can you be more specific
>> on what "doesn't work"?
>>
>> On Tue, Dec 11, 2018 at 3:24 AM Amal Inge <amalingenieur89 at gmail.com>
>> wrote:
>>
>>>
>>> Dear NCL experts,
>>>
>>> I want to plot a time series of monthly data of nc file with the script
>>> attached but it didn't work, i think that I should convert the time "since
>>> seconds" to month-year.
>>> how could i do this please?
>>>
>>> many thanks
>>> Amal
>>>
>>> netcdf dox01_med_0-52 {
>>> dimensions:
>>>     time = UNLIMITED ; // (215 currently)
>>>     lev = 13 ;
>>>     lat = 253 ;
>>>     lon = 670 ;
>>> variables:
>>>     double time(time) ;
>>>         time:axis = "T" ;
>>>         time:calendar = "standard" ;
>>>         time:units = "seconds since 1970-01-01 00:00:00" ;
>>>         time:long_name = "time" ;
>>>         time:standard_name = "time" ;
>>>     float lev(lev) ;
>>>         lev:_CoordinateZisPositive = "down" ;
>>>         lev:_CoordinateAxisType = "Height" ;
>>>         lev:axis = "Z" ;
>>>         lev:positive = "down" ;
>>>         lev:units = "m" ;
>>>         lev:long_name = "depth" ;
>>>         lev:standard_name = "depth" ;
>>>     float lat(lat) ;
>>>         lat:axis = "Y" ;
>>>         lat:units = "degrees_north" ;
>>>         lat:long_name = "latitude" ;
>>>         lat:standard_name = "latitude" ;
>>>     float lon(lon) ;
>>>         lon:axis = "X" ;
>>>         lon:units = "degrees_east" ;
>>>         lon:long_name = "longitude" ;
>>>         lon:standard_name = "longitude" ;
>>>     float dox(time, lev, lat, lon) ;
>>>         dox:missing_value = 1.e+20f ;
>>>         dox:_ChunkSizes = 1, 22, 84, 161 ;
>>>         dox:units = "millimol m-3" ;
>>>         dox:long_name = "Mole concentration of Dissolved Molecular
>>> Oxygen in sea water" ;
>>>         dox:standard_name =
>>> "mole_concentration_of_dissolved_molecular_oxygen_in_sea_water" ;
>>>         dox:_FillValue = 1.e+20f ;
>>>
>>> // global attributes:
>>>         :creation_date = "Tue Dec  4 23:27:50 CET 2018" ;
>>>         :Conventions = "None" ;
>>>         :source_file = "dox_med_0-52.nc" ;
>>>         :title = "NCL Efficient Approach to netCDF Creation" ;
>>> }
>>>
>>> _______________________________________________
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>>>
>>
>>
>> --
>>
>> <https://ncics.org/> *Carl J. Schreck III, PhD*
>> *Research Scholar*
>> North Carolina State University <http://ncsu.edu/>
>> North Carolina Institute for Climate Studies (NCICS) <https://ncics.org/>
>> 151 Patton Ave, Asheville, NC 28801
>> e: cjschrec at ncsu.edu
>> o: +1 828 257 3140 <(828)%20257-3140>
>> c: +1 828 484 1702 <(828)%20484-1702>
>> Publications
>> <http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
>> ncics.org/mjo
>> CycloneCenter.org <https://www.cyclonecenter.org/>
>>
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