[ncl-talk] Attribute assignment type mismatch on wrf_map_overlays

[Dennis Shea]

I speculate the following:

your code has
  mpres at mpRightCornerLonF = -69     ; <=== integer
  mpres at mpLeftCornerLonF  = -75     ;         "

===

The error message states:

fatal:["Execute.c":8575]:Execute: Error occurred at or near line 3351 in
file $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl

3350       if ( opts at mpRightCornerLonF .lt. 0.0 ) then
3351         opts at mpRightCornerLonF  = opts at mpRightCornerLonF + 360.0
3352       end if

line number 3351 results in a *float* because of the 360.

SO ...... You are trying to put a float into an integer variable.

NCL is a *strongly typed language*. It will not allow placing a float into
an integer variable .... Hence, the error message!!!

---
I think a solution is:


your code has
  mpres at mpRightCornerLonF = -69.     ; <=== float
  mpres at mpLeftCornerLonF  = -75.     ;         "

On Mon, Oct 31, 2016 at 5:10 PM, Ryan Connelly <rconne01 at gmail.com> wrote:

> Hi Mary,
>
> Rick just asked the same thing.  It's 6.3.0.
>
> Thanks,
> Ryan
>
>
> On Monday, October 31, 2016, Mary Haley <haley at ucar.edu> wrote:
>
>> What version of NCL are you running?
>>
>> ncl -V
>>
>> It doesn't really make sense that it's failing on the wrf_map_overlays
>> line, because I don't think there's an attribute assignment happening
>> there.  But, if I know what version of NCL you have, then I can look at
>> WRFUserARW.ncl for that version to see what's happening on the particular
>> line numbers it's complaining about.
>>
>> --Mary
>>
>>
>> On Mon, Oct 31, 2016 at 1:37 PM, Ryan Connelly <rconne01 at gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> I'm trying to plot a zoomed in fixed region, rather than the entire WRF
>>> domain by default.  I keep encountering this error:
>>>
>>> fatal:["NclAtt.c":262]:Attribute assignment type mismatch.
>>>
>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 3351
>>> in file $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>>>
>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 4550
>>> in file $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>>>
>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 4619
>>> in file $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>>>
>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 4702
>>> in file $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl
>>>
>>> fatal:["Execute.c":8575]:Execute: Error occurred at or near line 111 in
>>> file wrf_dbz_discrete_area.ncl
>>>
>>>
>>> Line 111 is the plot = wrf_map_overlays line.  Here's the relevant
>>> snippets from my code:
>>>
>>>   pltres = True
>>>   mpres = True
>>>
>>> ; Plotting options for limited area consistent across domains
>>>   mpres at mpLimitMode = "Corners"
>>>   mpres at mpRightCornerLatF = 42.02
>>>   mpres at mpRightCornerLonF = -69
>>>   mpres at mpLeftCornerLatF = 45.88
>>>   mpres at mpLeftCornerLonF = -75
>>>
>>> [...]
>>>
>>> ; First get the variables we will need
>>> ; Both dbz and mdbz will be calculated using constant intercept
>>> parameters
>>> ; (as in early Reisner-2), with values of 8x10^6, 2x10^7, and 4x10^6
>>> m^-4,
>>> ; for rain, snow, and graupel, respectively.
>>>
>>>      mdbz = wrf_user_getvar(a,"mdbz",it)
>>>      dbz = wrf_user_getvar(a,"REFL_10CM",it)
>>>      z = wrf_user_getvar(a,"z",it)
>>>      lat2d = wrf_user_getvar(a,"XLAT",it)
>>>      lon2d = wrf_user_getvar(a,"XLONG",it)
>>>
>>>      radar_Z = 10.^(dbz/10.)
>>>
>>>      height = 2000.     ; 2 km
>>>      radar_Z_plane  = wrf_user_intrp3d(radar_Z,z,"h",height,0.,False)
>>>      dbz_plane = 10.*log10(radar_Z_plane)
>>>
>>>      opts = res
>>>      opts at sfXArray = lon2d
>>>      opts at sfYArray = lat2d
>>>      opts at cnFillOn = True
>>>      opts at ContourParameters = (/ 10., 50., 2./)
>>>      contour = wrf_contour(a,wks,dbz_plane(:,:),opts)
>>>      pltres at LatLonOverlay = True
>>>      plot = wrf_map_overlays(a,wks,(/contour/),pltres,mpres)
>>>
>>>
>>> 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
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
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>>>
>>>
>>
>
> --
> 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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