[ncl-talk] warning:ScalarFieldSetValues

[Dennis Shea]

It looks liked you copied some existing script and made some changes.
      var   =   f->PVapor(0,:,:)    ;-- first time step, latitude=40N,
longitude=0-60E.
                                               ; ????? the comment has
*nothing* to do with the varaiable
... also ...
      res at tiMainString = *"DKRZ NCL Example: Slice plot at 40N*"  ;
??????????
----

Please '*Look at the Data*'
Pay attention to the data structure. Look carefully at your variables, the
dimension sizes and dimension names.

;;      *Scanline = 116* ;
;;      *Field_of_view = 30 *;
;;      Channel = 20 ;
;;      *P_Layer = 100* ;
;;      *P_Level = 101* ;
;;      Qc_dim = 4 ;

;;      float Latitude(Scanline, Field_of_view) ;
;;              Latitude:long_name = "Latitude of the view (-90,90)" ;
;;      float Longitude(Scanline, Field_of_view) ;
;;              Longitude:long_name = "Longitude of the view (-180,180)" ;
;;      float *PVapor*(Scanline, Field_of_view, *P_Layer*) ;
;;              PVapor:long_name = "Water vapor profile in g/kg" ;
;;              PVapor:scale = 1. ;
;;      float *Player*(P_Layer) ;
;;              Player:description = "Pressure for each layer in mb" ;
;;      float *Plevel*(P_Level) ;
;;              Plevel:description = "Pressure for each level in mb" ;

Your script contains:

ncl 8>   var   =   f->PVapor(0,:,:)    ;-- first time step, latitude=40N,
longitude=0-60E.
                                                      ; ^^^^^^^^^^^^^^^^
Huh? ^^^^^^^^^^^^^^^^^^^^^
 ncl 9>   lev   =  f->Plevel               ; No!!!!   size *101,* PVapor is
size *100*

The comment is *not appropriate*
The variable* PVapor i*s dimensioned *(*Scanline, Field_of_view, *P_Layer)
. *P_Layer is size
* 100.*
Yet you are trying *(I think)* to use Plevel(P_Level)  which is size
*P_level=101.*

This is why ncl-talk always advises:    *Look at your data!*

Scanline          ==>Time
Field_of_View ==> Latitude, Longitude
P_Layer          ==>  Pressure levels




On Fri, Oct 26, 2018 at 3:42 AM Elham Ghasemifar <
elham.ghasemifar at modares.ac.ir> wrote:

> Dear colleges
>
> hello
>
> i want to plot water vapor cross section , and i already mention the data
> has scan line and field of view instead of latitude and longitude, latitude
> and longitude are separate variable in the file, water vapor has 3
> dimension namely scan line, field of view and player.
>
> i don't know why i got the warning :
>
> warning:ScalarFieldSetValues: coordinate array sfXArray requires 100
> elements: defaulting
> warning:ScalarFieldSetValues: coordinate array sfYArray requires 30
> elements: defaulting
>
> i attached the plot and the script,
>
> any helps will be gratefully appreciated .
>
>
>
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