[ncl-talk] unable to plot scalar and vector quantities.
Kyle Griffin
ksgriffin2 at wisc.edu
Wed May 27 14:05:15 MDT 2015
Geeta,
I don't see an error here. A "warning" is just letting you know that
something *might* be wrong. An error means the file wasn't produced. What
does your output look like? From what I can see in a quick look, there's
nothing wrong with your script and the file should be produced correctly.
If not, send us the file and any actual errors (usually starting with
"fatal:"
Also, if you are new to NCL, please refer more to the NCL documentation:
http://www.ncl.ucar.edu/Document/
and especially the first link, the reference manual.
However, you've been posting to ncl-talk for over a year and really should
be developing some more of your own skills by now - we won't be able to
help you with your code forever! Good luck!
Kyle
----------------------------------------
Kyle S. Griffin
Department of Atmospheric and Oceanic Sciences
University of Wisconsin - Madison
Room 1421
1225 W Dayton St, Madison, WI 53706
Email: ksgriffin2 at wisc.edu
On Wed, May 27, 2015 at 2:26 PM, Geeta Geeta <geetag54 at yahoo.com> wrote:
> I have to plot the GPM height, vector wind at 850 hpa.
> for this i am using the
> plot = gsn_csm_vector_scalar_map_ce(wks,Uwnd850,Vwnd850,GPM850,res) ;
> create a default plot
>
> Following is the error.
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> aditya at agniilap:~/geeta/ncl/myscripts_ncl$ ncl test.ncl
> Copyright (C) 1995-2014 - All Rights Reserved
> University Corporation for Atmospheric Research
> NCAR Command Language Version 6.2.1
> The use of this software is governed by a License Agreement.
> See http://www.ncl.ucar.edu/ for more details.
>
> Variable: a
> Type: file
> File path: $NCARG_ROOT/lib/ncarg/data/cdf/test.nc
> Number of global attributes: 6
> Number of dimensions: 13
> Number of variables: 107
>
> Variable: GPM850
> Type: float
> Total Size: 260640 bytes
> 65160 values
> Number of Dimensions: 2
> Dimensions and sizes: [lat_0 | 181] x [lon_0 | 360]
> Coordinates:
> lat_0: [90..-90]
> lon_0: [ 0..359]
> Number Of Attributes: 13
> lv_ISBL0 : 85000
> initial_time : 04/23/2015 (12:00)
> forecast_time_units : hours
> forecast_time : 0
> level_type : Isobaric surface (Pa)
> parameter_template_discipline_category_number : ( 0, 0, 3, 5 )
> parameter_discipline_and_category : Meteorological products, Mass
> grid_type : Latitude/longitude
> _FillValue : 1e+20
> units : gpm
> long_name : Geopotential height
> production_status : Operational products
> center : US National Weather Service - NCEP (WMC)
>
> Variable: Uwnd850
> Type: float
> Total Size: 260640 bytes
> 65160 values
> Number of Dimensions: 2
> Dimensions and sizes: [lat_0 | 181] x [lon_0 | 360]
> Coordinates:
> lat_0: [90..-90]
> lon_0: [ 0..359]
> Number Of Attributes: 13
> lv_ISBL0 : 85000
> initial_time : 04/23/2015 (12:00)
> forecast_time_units : hours
> forecast_time : 0
> level_type : Isobaric surface (Pa)
> parameter_template_discipline_category_number : ( 0, 0, 2, 2 )
> parameter_discipline_and_category : Meteorological products, Momentum
> grid_type : Latitude/longitude
> _FillValue : 1e+20
> units : m s-1
> long_name : U-component of wind
> production_status : Operational products
> center : US National Weather Service - NCEP (WMC)
>
> Variable: Vwnd850
> Type: float
> Total Size: 260640 bytes
> 65160 values
> Number of Dimensions: 2
> Dimensions and sizes: [lat_0 | 181] x [lon_0 | 360]
> Coordinates:
> lat_0: [90..-90]
> lon_0: [ 0..359]
> Number Of Attributes: 13
> lv_ISBL0 : 85000
> initial_time : 04/23/2015 (12:00)
> forecast_time_units : hours
> forecast_time : 0
> level_type : Isobaric surface (Pa)
> parameter_template_discipline_category_number : ( 0, 0, 2, 3 )
> parameter_discipline_and_category : Meteorological products, Momentum
> grid_type : Latitude/longitude
> _FillValue : 1e+20
> units : m s-1
> long_name : V-component of wind
> production_status : Operational products
> center : US National Weather Service - NCEP (WMC)
> warning:cnFillOn is not a valid resource in ce_vector at this time
> warning:cnLevelSelectionMode is not a valid resource in ce_vector at this
> time
> warning:cnMinLevelValF is not a valid resource in ce_vector at this time
> warning:cnMaxLevelValF is not a valid resource in ce_vector at this time
> warning:cnLevelSpacingF is not a valid resource in ce_vector at this time
> warning:cnLinesOn is not a valid resource in ce_vector at this time
>
>
> I m a beginner with NCL.
> Pls answer to my query.
> I am attaching my script.
> ;************************************************
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
> begin
> a=addfile("$NCARG_ROOT/lib/ncarg/data/cdf/test.nc","r")
> GPM850=a->HGT_P0_L100_GLL0(20,:,:)
> Uwnd850=a->UGRD_P0_L100_GLL0(20,:,:)
> Vwnd850=a->VGRD_P0_L100_GLL0(20,:,:)
> printVarSummary(a)
> printVarSummary(GPM850)
> printVarSummary(Uwnd850)
> printVarSummary(Vwnd850)
> ; create workstation;;;;
> ;
> wks = gsn_open_wks("png","ce") ; open a ps file
> gsn_define_colormap(wks,"BlAqGrYeOrRe") ; will open a coloured wks
>
> res = True
> ;;; Contour resouces;;;;
> res at cnFillOn = True ; turn on color fill
> res at cnLinesOn = False ; turn of contour lines
> ; res at cnLevelSpacingF = 20 ; contour spacing
> res at cnLevelSelectionMode = "ManualLevels" ;manually set contour levels
> with following 3 resources
> res at cnMinLevelValF = 1400 ; set the minimum contour level
> res at cnMaxLevelValF = 1600 ; set the maximum contour level
> res at cnLevelSpacingF = 20
>
> ; Plotting data for a domain
> res at mpMinLatF = 5.0 ; range to zoom in on
> res at mpMaxLatF = 30.
> res at mpMinLonF = 60.
> res at mpMaxLonF = 120.
> res at cnLevelSelectionMode = "ManualLevels" ; manually set the
> contour levels with the following 3 resources
> ;
> ; VECTOR RESOURCES
>
> res at vcRefMagnitudeF = 4.0 ; define vector ref mag
> res at vcRefLengthF = 0.045 ; define length of vec
> ref
>
> res at vcRefAnnoOrthogonalPosF = -1.0 ; move ref vector
> res at vcRefAnnoArrowLineColor = "black" ; change ref vector
> color
> res at vcRefAnnoArrowUseVecColor = False ; don't use vec color
> for ref
>
> plot = gsn_csm_vector_scalar_map_ce(wks,Uwnd850,Vwnd850,GPM850,res)
> ; create a default plot
> end
>
>
> Geeta.
>
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