[ncl-talk] 回复： problems about converting ASCII to nc and plotting thenc file

[Li Qi]

very nice script and nicely explained...


Thank you very much!


By the way: Is there any tricky way to convert multiple ascii files to nc files?


Attached are the data.




------------------ 原始邮件 ------------------
发件人: "Dennis Shea";<shea at ucar.edu>;
发送时间: 2014年10月4日(星期六) 晚上9:33
收件人: "Li Qi"<liqi123sh at qq.com>; 
抄送: "ncl-talk"<ncl-talk at ucar.edu>; 
主题: Re: [ncl-talk] problems about converting ASCII to nc and plotting thenc file



[1] lat, lon, rain are all one-dimensional (1D)

[2] You are setting


     rain at lat2d = lat

     rain at lon2d= lon


    The reserved attributes @lat2d and @lon2d require two-dimensional arrays.

    That is what the 2d means.


[3] You do not need to create a netCDF file for plotting.

      You can read the ascii and plot


See attached.

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On Sat, Oct 4, 2014 at 2:14 AM, Li Qi <liqi123sh at qq.com> wrote:
Dear NCL,


I have an ASCII file having dimensions [lon,lat],


then I'd like to convert it to nc file and plot it.


Attached please find the data and scripts.


However, when I plot it, I got error warnings and no contours appeared on the map.


(0)     Error: scalar_field: If the input data is 1-dimensional, you must set sfXArray and sfYArray to 1-dimensional arrays of the same length.
warning:create: Bad HLU id passed to create, ignoring it
warning:ContourPlotSetValues: Data values out of range of levels set by EXPLICITLEVELS mode


Could you please to help me?


Any advice will be greatly appreciated!


Best,


LI Qi‍


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