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

begin
;-- read the data and define

  diri = "/home/model-user/Desktop/"
  fili = "IAGOS_timeseries_2002021617203349.nc" 
  pthi = diri+fili
  f = addfile(pthi, "r")
  
  
  var = f->O3_PM  
  printVarSummary(var)
  print ("min/max var = " + min(var) + "/" + max(var))
  time = ispan (62400,64260,5)
  long_name = "UTC time"
  wks = gsn_open_wks("png", "O3_PM lagos to Lome Flight_20020216")
  res = True
  res@xyExplicitLegendLabels = (/"Ozone at Lagos"/)
  res@xyLineColor = (/"red"/)
  res@xyLineThicknessF = 3
  res@tiYAxisString = "O3_PM ppb"
  res@tiYAxisFont = 21
  res@tiYAxisFontAspectF = 1.3
  res@tiYAxisFontHeightF = 0.012
  res@tiXAxisString = "Time"
  res@tiXAxisFont = 21
  res@tiXAxisFontAspectF = 1.3
  res@tiXAxisFontHeightF = 0.012
  res@tiXAxisOffsetYF = 0.0
  res@tiMainOffsetYF = 0.11
  res@tiMainString = "Ozone_PM: Lagos to Lome flight"
  res@tmXBLabelFontAspectF = 1.1
  res@tmXBLabelFontHeightF = 0.012
res@trYMinF = 15.
res@trYMaxF = 100.0
res@gsnMaximize = True
res@gsnDraw = False
res@gsnFrame = False
;-- create plot
plot = gsn_xy(wks,time,var,res)

  draw(wks)
  frame(wks)

end