[ncl-talk] Problem with linint2_Wrap

Mon Aug 6 11:13:24 MDT 2018

Ipsita,

Could you run the command 

ncdump -h MERRA2_400.inst3_3d_asm_Np.20170101.SUB.nc

and share the result of that? It should give you a summary of the header of your netCDF file, i.e. the metadata of the file and each variable, like latitude and longitude range, units, etc.

Toni

Toni Klemm, Ph.D.
Postdoctoral Research Associate
Department of Ecosystem Science and Management
College of Agriculture and Life Sciences
Texas A&M University, College Station, TX
Contributor at the Early Career Climate Forum <http://www.eccforum.org/>
www.toni-klemm.de <http://www.toni-klemm.de/> | @toniklemm <http://twitter.com/toniklemm>

> On Aug 6, 2018, at 12:05 PM, Ipsita Putatunda <ipsita.putatunda at gmail.com> wrote:
> 
> Hi all,
> Attaching my script herewith, though can't send the data file through email(already sent in ftp) due to its huge volume.
> 
> Thanks,
> Ipsita
> 
> On Mon, Aug 6, 2018 at 10:33 PM, Ipsita Putatunda <ipsita.putatunda at gmail.com <mailto:ipsita.putatunda at gmail.com>> wrote:
> Hi Toni,
> I have already sent my data and script through ftp, as the data file is big I can't attach it in mail.
> I first lonFlip my data from -180 to +180 to 0 to 360, till that point the plot was coming fine.
> After that I tried to regrid from 0.5 * 0.625 to 0.25*0.25, which is giving this plot.
> The point you mentioned for shifting 180 degree, I have noticed that also, but somehow not able to fix it.
> 
> Thanks,
> Ipsita
> 
> 
> On Mon, Aug 6, 2018 at 10:25 PM, Toni Klemm <toni-klemm at tamu.edu <mailto:toni-klemm at tamu.edu>> wrote:
> Ipsita,
> 
> Would you mind sharing your NCL script and the metadata of your variables, i.e. an ncdump -h of your data files, with the listserv? I’m not sure many on the listserv have access to your data files and your script on the ftp server.
> 
> From which to which resolution did you regrid? Maybe check if your latitude range before and after the regrinding is the same, for example from 0 to 359 degrees or from -180 to +179 degrees? Judging from your plot (the position of Africa, for example) there might be a 180 degree shift between your data and your map overlay. 
> 
> Toni
> 
> 
> Toni Klemm, Ph.D.
> Postdoctoral Research Associate
> Department of Ecosystem Science and Management
> College of Agriculture and Life Sciences
> Texas A&M University, College Station, TX
> Contributor at the Early Career Climate Forum <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.eccforum.org&d=DwMFaQ&c=ODFT-G5SujMiGrKuoJJjVg&r=WsLJ5ywbW3XnTzqo_ETV62H6s1a5bcGgnrpl7xPRfic&m=XVNuJ4lF58XrFDJa3KuL2JhhOUYC9qhu5P0f2FbS4jg&s=pwUb1iORHQjLkcIoGsCduDCmKc1xCPHjvAGzpZk2S1E&e=>
> www.toni-klemm.de <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.toni-2Dklemm.de&d=DwMFaQ&c=ODFT-G5SujMiGrKuoJJjVg&r=WsLJ5ywbW3XnTzqo_ETV62H6s1a5bcGgnrpl7xPRfic&m=XVNuJ4lF58XrFDJa3KuL2JhhOUYC9qhu5P0f2FbS4jg&s=AyO6EOxiMiJtuJjCG8E6gJxcyuY_DhvETISLN3Ik-Ns&e=> | @toniklemm <https://urldefense.proofpoint.com/v2/url?u=http-3A__twitter.com_toniklemm&d=DwMFaQ&c=ODFT-G5SujMiGrKuoJJjVg&r=WsLJ5ywbW3XnTzqo_ETV62H6s1a5bcGgnrpl7xPRfic&m=XVNuJ4lF58XrFDJa3KuL2JhhOUYC9qhu5P0f2FbS4jg&s=fCKqNGjGZ_eVYsnTBfGzcaC9dMplBdDod9UH7gzlW9Y&e=>
> 
> 
> 
> 
> 
> 
> 
>> On Aug 6, 2018, at 11:45 AM, Ipsita Putatunda <ipsita.putatunda at gmail.com <mailto:ipsita.putatunda at gmail.com>> wrote:
>> 
>> Hi Barry,
>> 
>> There is actually no particular reason for not using other regridding options. As I  have used this method several times in my previous scripts and am much familiar with this method, and also  feel it is quicker process compare to other options, that is why I have chosen it. You are always welcome to suggest something different as well.
>> 
>> Thanks,
>> Ipsita
>> 
>> On Mon, Aug 6, 2018 at 10:04 PM, Barry Lynn <barry.h.lynn at gmail.com <mailto:barry.h.lynn at gmail.com>> wrote:
>> Hi:
>> 
>> Is there  a particular reason you don't use 
>> 
>> https://www.ncl.ucar.edu/Applications/regrid.shtml <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ncl.ucar.edu_Applications_regrid.shtml&d=DwMFaQ&c=ODFT-G5SujMiGrKuoJJjVg&r=WsLJ5ywbW3XnTzqo_ETV62H6s1a5bcGgnrpl7xPRfic&m=z_8XH5Nfko--z8kQcoLyR7TgUbSIqNJios95j_gBDhU&s=Rhqzff0XfY92jYqWoyOdJvMWFgdzGZP1L5Ngpclzknc&e=>   ?
>> 
>> On Mon, Aug 6, 2018 at 7:20 PM Ipsita Putatunda <ipsita.putatunda at gmail.com <mailto:ipsita.putatunda at gmail.com>> wrote:
>> Dear all,
>> I am not able to plot correctly after I regrid my data, using linint2_Wrap. I am attaching the plot herewith what I am getting.
>>  I have already sent my data file and script via ftp. Any help in this issue will be appreciated.
>> 
>> Thanks in advance,
>> Ipsita
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>> -- 
>> Barry H. Lynn, Ph.D
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