[ncl-talk] Pressure level

[WIND]

Hi all,
    I'm trying to draw the pressure v.s. latitude contour via  "gsn_csm_pres_hgt", but the pressure axis just don't show pressure data above 10hPa (from 10hPa to 1hPa). (Besides, I want to emphasize the upper stratosphere data.)
    How should I add the whole pressure data?
    Here is my script


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

fq=addfile("/merra2/200-1/MERRA2.nc4","r")

merra=fq->T
wks  = gsn_open_wks("eps" ,"t") 
res                       = True     
res at cnFillOn              = True   
res at tmYRMode             = "Automatic"        
res at gsnDraw         = False       
res at gsnFrame        = False      
res at tmXBMinorOn     = False   
res at tiYAxisString="Pressure"
plot = gsn_csm_pres_hgt(wks,merra,res)



    Any help would be grateful!


Yan
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