Zooming Error

From: brittany.hailey <brittany.hailey_at_nyahnyahspammersnyahnyah>
Date: Mon Mar 18 2013 - 11:12:18 MDT

I am trying to get the script to zoom in on Mississippi, but I keep getting
the following error:

fatal:(gridlat_221) is not a named dimension in variable (u_wind).
fatal:["Execute.c":7743]:Execute: Error occurred at or near line 41 in file
narr_ncl_template.ncl

This is my code:

;***************************************************************************
; narr_ncl_template.ncl
;
; Read NARR NCDC-NOMADS data
;
; Brittany Hailey 02/11/2013
; - Plotting NARR data
;
; Executea: ncl narr_ncl_template.ncl
;***************************************************************************

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"

begin

;*******************************************
; Open file and read in data
;*******************************************

  dir = "/narrr-data/data/" ; input
directory
  f = addfile (dir + "narr-a_221_20011231_0000_000.grb", "r")

;print(f)

;*******************************************
; Read variables and assign names
;*******************************************

  level = f->lv_ISBL2
  ;latitude = f->gridlat_221
  ;longitude = f->gridlon_221
 ; dimlc = dimsizes(latitude)
 ; nlat = dimlc(0)
; mlon = dimlc(1)

;*******************************************
; Remove ";" for required variable
;*******************************************
  u_wind = f->U_GRD_221_ISBL ; (lev,lat,lon)
u-wind_component
u_wind&gridlat_221@units = "degrees_north"
u_wind&gridlon_221@units = "degrees_east"

printVarSummary(u_wind)
printVarSummary(latitude)
printVarSummary(longitude)

;*************create plots*******************
  wks = gsn_open_wks ("ps", "narr_dft") ; Create output filename
and type
  gsn_define_colormap (wks,"gui_default") ; choose color map

  res = True ; plot mods desired for
original grid

;************************************************************
; Define NARR Map
;
  res@mpLimitMode = "Corners" ; choose range of map
  res@mpLeftCornerLatF = 30
  res@mpLeftCornerLonF = -92
  res@mpRightCornerLatF = 35
  res@mpRightCornerLonF = -86
  res@tfDoNDCOverlay = False
  res@mpProjection = "LambertConformal"
  res@mpLambertParallel1F = 50
  res@mpLambertParallel2F = 50
  res@mpLambertMeridianF = 253

; Define how map is to be displayed [gridlines, boundaries]
  res@pmTickMarkDisplayMode = "Always"
  res@mpFillOn = False ; turn off map fill
  res@mpDataBaseVersion = "MediumRes" ; Allow plotting of counties
  res@mpOutlineDrawOrder = "PostDraw" ; draw continental outline
last
  res@mpProvincialLineColor = "Blue" ; Border color
  res@mpProvincialLineThicknessF = 5 ; Border line thickness
; res@mpOutlineBoundarySets = "AllBoundaries" ; state/county boundaries
  res@mpOutlineBoundarySets = "GeophysicalAndUSStates" ; state boundaries

; END NARR MAP
;**********************************************************************

  res@cnFillOn = True ; color fill
  res@cnLinesOn = False ; no contour lines
  res@gsnSpreadColors = True ; use total colormap
  res@gsnSpreadColorStart = 4
  res@gsnSpreadColorEnd = -1
  res@mpGridAndLimbOn = True
  res@pmTickMarkDisplayMode = "Always" ; turn on tickmarks
  res@tmXTOn = False
  res@gsnAddCyclic = False ; regional data

  res@gsnCenterString = "U-wind@"+u_wind&lv_ISBL2(8) + " hPa"
    ; draw center subtitle
  res@gsnLeftString = "U Component Wind" ; draw
left subtitle
  plot = gsn_csm_contour_map(wks,u_wind(5,:,:),res) ; Draw
original grid on map

  end

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Received on Mon Mar 18 11:12:29 2013

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