[ncl-talk] ECMWF variable: field values and geophysical contour position

[Lara Quitián Hernández]

Great! Thank you so much for all the info.

Best Regards,
Lara

El jue., 7 mar. 2019 a las 21:25, Dennis Shea (<shea at ucar.edu>) escribió:

> [1] From an NCL perspective, there is *no need *to convert the Grib file
> to netCDF. Read the Grib file directly within an NCL script.
>
>   dirg   = "/Volumes/MyPassport/harmonie/Ophelia/output/"
>   filg    = "fc2017100612+006.grb"
>   pthg  = dirg+filg
>   fg     = *addfile*(pthg,"r")
>  ;print(fg)    ; same as:   ncl_filedump fc2017100612+006.grb
>
> ;---Extract desired variable
>
>
> *  varName = "SHTFL_GDS3_HTGL_acc6h"  x     = fg->$varName$*
>
>
> [2] As with WRF data which you used before, variable on curvilinear grids
> must use
>
>      x at lat2d = ....
>      x at lon2d = ...
>
>      See attached.
>
> ============
> [3] If for some reason you want the *whole file* converted to netCDF, use:
>
> *%>* *ncl_convert2nc*
> <https://www.ncl.ucar.edu/Document/Tools/ncl_convert2nc.shtml>
> fc2017100612+006.grb
>
> If you want an explicit 'time' dimension, add the 'itime' option
>
> *%>* *ncl_convert2nc* <https://www.ncl.ucar.edu/Document/Tools/ncl_convert2nc.shtml>  fc2017100612+006.grb *-itime*
>
>
> [3] If you want selected variable subset use:
>
> %> *ncl_convert2nc *fc2017100612+006.grb -*v
> SHTFL_GDS3_HTGL_acc6h,g3_lat_0,g3_lon_1*
>
> On Wed, Mar 6, 2019 at 9:32 AM Lara Quitián Hernández <
> laraquitianhernandez at gmail.com> wrote:
>
>> Hi,
>>
>> Of course, I send you the file.
>>
>> I'm thinking that maybe the problem is the wrong conversion from the grib
>> file to the NetCDF file.
>> So, I also send you the grib file and the script I have used to carry out
>> that conversion.
>>
>> Thank you so much.
>>
>> Regards,
>> Lara
>>
>>  fc2017100612+006.grb
>> <https://drive.google.com/file/d/1orn2uzzyLyndUkwENHHBypjAQw18u4uN/view?usp=drive_web>
>>  fc2017100612+006.nc
>> <https://drive.google.com/file/d/1Df6twhGWbE5jcdeIzMBROhOaEIDonmBh/view?usp=drive_web>
>>
>> El mié., 6 mar. 2019 a las 17:23, Rick Brownrigg (<brownrig at ucar.edu>)
>> escribió:
>>
>>> Hi,
>>>
>>> Its really difficult to say, based upon the information available. What
>>> makes you say the map is not correctly registered?  Are you able to send me
>>> you data set?
>>>
>>> Rick
>>>
>>>
>>> On Wed, Mar 6, 2019 at 9:17 AM Lara Quitián Hernández <
>>> laraquitianhernandez at gmail.com> wrote:
>>>
>>>> Good afternoon,
>>>>
>>>> I'm trying to plot a NetCDF ECMWF variable (surface heat flux), but I
>>>> am obtaining the field values and geophysical contours situated in
>>>> different places. I have tried to modify the projection and other
>>>> map issues, but I'm not able to fix it.
>>>>
>>>> ¿Could anyone help me?
>>>>
>>>> I enclose the obtained figure and a summary of the variable's info.
>>>>
>>>> Thanks in advance.
>>>>
>>>> Best regards,
>>>> Lara
>>>>
>>>> [image: Captura de pantalla 2019-03-06 a las 17.13.46.png]
>>>> [image: SHF2_Ophelia_10-06-2017(12+)_3.png]
>>>>
>>>> --
>>>>
>>>>
>>>> *Lara Quitián Hernández, PhD Student*
>>>> Department of Earth Physics and Astrophysics
>>>> Faculty of Physical Sciences
>>>> Ciudad Universitaria, Plaza Ciencias, 1
>>>> 28040 Madrid. Spain
>>>> Email: lquitian at ucm.es <mlunar at aemet.es>
>>>>
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>>>>
>>>
>>
>> --
>>
>>
>> *Lara Quitián Hernández, PhD Student*
>> Department of Earth Physics and Astrophysics
>> Faculty of Physical Sciences
>> Ciudad Universitaria, Plaza Ciencias, 1
>> 28040 Madrid. Spain
>> Email: lquitian at ucm.es <mlunar at aemet.es>
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>

-- 


*Lara Quitián Hernández, PhD Student*
Department of Earth Physics and Astrophysics
Faculty of Physical Sciences
Ciudad Universitaria, Plaza Ciencias, 1
28040 Madrid. Spain
Email: lquitian at ucm.es <mlunar at aemet.es>
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