[ncl-talk] Radar PPI dimension size problem with Conform

[Barry Lynn]

Hi Ryan:

Is it possible that the format of the radar data has changed?

I had to write several Fortran programs to read the radar data from
different years (as processed by the NOAA Weather and Climate Tool).  I
write out the data and then map it objectively using a wrf output program
as the gridded background.

I can send you these programs if you like.

Barry

On Wed, Apr 19, 2017 at 11:28 PM, Ryan Connelly <rconne01 at gmail.com> wrote:

> Hi,
>
> I'm looking at the example here: http://www.ncl.ucar.edu/
> Applications/Scripts/radar_2.ncl but encountering the error:
>
> fatal:conform: the dimensions sizes of the second argument do not match
> those indicated by the third argument
>
>
> Here is the code up to that point:
>
> begin
>
>   fils = systemfunc ("csh -c 'cd " + diri + " ; ls *.nc'")
>   do j = 0,dimsizes(fils)-1,1
>        fili = fils(j)    ;+".nc"
>        rf    = addfile(diri+fili,"r")
> ;       print(getfilevarnames(rf))
>        rd    = rf->REF ;short2flt(rf->REF)
>        dsizes = dimsizes(rd)
>        angles = rf->azimuth
>        angles(0:63) = angles(0:63)-360  ; fix to make angles monotonic
>        DEGTORAD = 0.017453292519943
>        xcenter  = 0.0
>        ycenter  = 0.0
>        radius   = 960 * 0.25 ; this is radius in kilometers
>
> ; Create 2D coordinate arrays.
> ;
>        printVarSummary(rd(0))
>        printVarSummary(angles)
>
>        inc      = radius / (dsizes(0) - 1)
>        x        = inc * ispan(0,dsizes(0)-1,1)
>        angles2d = conform(rd,angles,0)
>        x2d      = conform(rd,x,1)
>        xarr     =  xcenter + x2d  * cos(DEGTORAD * angles2d)
>        yarr     =  ycenter + x2d  * sin(DEGTORAD * angles2d)
>
>
> It seems that there's a mismatch between rd(0) and angles?  rd is
> one-dimensional with 6701760 points, and angles is also one-dimensional,
> with 5400 points.
>
> Thanks,
> Ryan
>
> --
> Ryan Connelly
> M.S. Student in Atmospheric Sciences, Stony Brook University
> B.S. in Meteorology with Minors in Mathematics and GIS, Valparaiso
> University
> rconne01 at gmail.com
> ryan.connelly at stonybrook.edu
>
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>


-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

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