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plot_gfs_lambert_slp.ncl
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plot_gfs_lambert_slp.ncl
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; ===========================================
; Plots 4-panel for GFS evaluation
; Created by: Alicia M. Bentley
; Last updated: 9 June 2020
; ===========================================
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
; ===========================================
begin
print("======================")
print("Script has started!")
print("======================")
;================================================================
; Define casename
if (isdefined("eventname")) then
print("Eventname defined on command line: "+eventname)
casename = eventname
else
print("No eventname defined on command line")
casename = "eventname"
end if
;==================================================================
; Define data_directory
if (isdefined("images_path")) then
print("images_path defined on command line: "+images_path)
image_dir = images_path
else
print("No images_path defined on command line")
image_dir = "images_path"
end if
;==================================================================
; Pre-defined domain definitions
minlatlist=(/15.0,35.0,25.0,31.0,40.0,25.5,35.0,42.0,41.0,34.0,40.0,34.0,24.5,12.5,10,20,1,-40,15,10,3/)
maxlatlist=(/60.0,75.0,50.0,43.0,50.0,37.5,44.0,50.0,49.5,43.0,48.0,42.5,35.0,35,27,47.5,60,-1,62.5,29,35/)
minlonlist=(/-135.0,160.0,-120,-125.0,-125.0,-108.0,-108.0,-110.0,-97.0,-97.0,-81.0,-86.0,-92.0,-105,-81,-95,110,137.5,-167.5,-171,-136/)
maxlonlist=(/-60.0,250.0,-72.5,-105.0,-107.0,-90.0,-92.0,-95.0,-80.5,-83.0,-66.5,-72.0,-76.0,-72.5,-55,-57.5,179,192.5,-115,-141,-82/)
regionlist=(/"us","ak","uszoom","sw","nw","t","cp","np","mw","ov","ne","ma","se","gom","pr","nwatl","wpac","spac","epac","hi","epactc"/)
if (isdefined("scriptregion")) then
if (scriptregion .eq. "new")
print("New domain requested. Script will fail if the following variables are not defined with command line arguments: regionname, minlat, minlon, maxlat, maxlon.")
scriptregion=regionname
else
print("Domain defined on command line: "+scriptregion)
scriptregion=str_lower(scriptregion)
end if
else
scriptregion="us"
end if
do c=0,dimsizes(regionlist)-1
if (regionlist(c).eq.scriptregion) then
minlat=minlatlist(c)
minlon=minlonlist(c)
maxlat=maxlatlist(c)
maxlon=maxlonlist(c)
end if
end do
; =================================================================
; Obtaining the date of the forecast requested
scriptyear=toint(str_get_cols(scriptyyyymmddhh,0,3))
scriptmonth=toint(str_get_cols(scriptyyyymmddhh,4,5))
scriptday=toint(str_get_cols(scriptyyyymmddhh,6,7))
scripthour=toint(str_get_cols(scriptyyyymmddhh,8,9))
timeunits="hours since 1800-01-01 00:00"
datemodel=ut_inv_calendar(scriptyear,scriptmonth,scriptday,scripthour,0,0,timeunits,0)
datestart=ut_inv_calendar(scriptyear,scriptmonth,scriptday,scripthour,0,0,timeunits,0)
;===================================================================
;;; Check to see if starting forecast hour was defined with command line argument
if (isdefined("fhr_start")) then
print("Starting forecast defined on command line")
fhrb = toint(fhr_start)
startdate1=datemodel+fhrb
startdate1@units=timeunits
startints=ut_calendar(startdate1,0)
datestart=ut_inv_calendar(toint(startints(:,0)),toint(startints(:,1)),toint(startints(:,2)),toint(startints(:,3)),0,0,timeunits,0)
else
datestart=ut_inv_calendar(scriptyear,scriptmonth,scriptday,scripthour,0,0,timeunits,0)
end if
;;; Check to see if ending forecast hour was defined with command line argument
if (isdefined("fhr_end")) then
print("Ending forecast defined on command line")
fhr_diff = toint(fhr_end) - toint(fhr_start)
fhre = toint(fhr_diff)
else
fhre=toint(0)
end if
enddate1=datestart+fhre
enddate1@units=timeunits
endints=ut_calendar(enddate1,0)
dateend=ut_inv_calendar(toint(endints(:,0)),toint(endints(:,1)),toint(endints(:,2)),toint(endints(:,3)),0,0,timeunits,0)
datemodel@units=timeunits
;;; Check to see if forecast hour increment was defined with command line argument
if (isdefined("fhr_inc")) then
print("Forecast hour increment defined on command line")
fhri = toint(fhr_inc)
else
fhri=6
end if
fdates=ispan(toint(datestart),toint(dateend),fhri)
fhours=ispan(toint(datestart)-toint(datemodel),toint(dateend)-toint(datemodel),fhri)
do h=0,dimsizes(fdates)-1
;print((/fhours(h)/))
thisdate=fdates(h)
thisdate@units=timeunits
modelstrings=tostring(ut_calendar(thisdate,-3))
ms=tostring(ut_calendar(datemodel,-3))
;model date
yearm=str_get_cols(ms,0,3)
monthm=str_get_cols(ms,4,5)
daym=str_get_cols(ms,6,7)
hourm=str_get_cols(ms,8,9)
mdhm=str_get_cols(ms,4,9)
ymm=str_get_cols(ms,0,5)
ymdm=str_get_cols(ms,0,7)
;date of forecast hour
year=str_get_cols(modelstrings,0,3)
month=str_get_cols(modelstrings,4,5)
day=str_get_cols(modelstrings,6,7)
hour=str_get_cols(modelstrings,8,9)
mdh=str_get_cols(modelstrings,4,9)
ymd=str_get_cols(modelstrings,0,7)
monthind=toint(month)
months=(/"","January","February","March","April","May","June","July","August","September","October","November","December"/)
print(" ")
print("Int: YYYYMMDDHH (FXXX): "+ymdm+hourm+" (F"+sprinti("%0.3i",fhours(h))+")")
; ==========================================================================
;Obtaining GFSv16 fcst file
parafile_gfs ="gfsv16."+ymdm+".t"+hourm+"z.pgrb2.0p25.f"+sprinti("%0.3i",fhours(h))+".grib2"
if (isfilepresent(parafile_gfs)) then
print("GFSv16 fcst file found!")
else
print("GFSv16 fcst file is missing...")
system("pwd")
end if
para_gfs=addfile("gfsv16."+ymdm+".t"+hourm+"z.pgrb2.0p25.f"+sprinti("%0.3i",fhours(h))+".grib2","r")
; ----------------------------------------------------------------------------------
;Obtaining GFSv15 fcst file
prodfile_gfs ="gfsv15."+ymdm+".t"+hourm+"z.pgrb2.0p25.f"+sprinti("%0.3i",fhours(h))+".grib2"
if (isfilepresent(prodfile_gfs)) then
print("GFSv15 fcst file found!")
else
print("GFSv15 fcst file is missing...")
system("pwd")
end if
prod_gfs=addfile("gfsv15."+ymdm+".t"+hourm+"z.pgrb2.0p25.f"+sprinti("%0.3i",fhours(h))+".grib2","r")
;-----------------------------------------------------------------------------------
;Obtaining GFS analysis file
anlfile ="../analyses/gfs."+ymd+".t"+hour+"z.pgrb2.0p25.f000.grib2"
if (isfilepresent(anlfile)) then
print("GFS analysis file found!")
else
print("GFS analysis file is missing...")
end if
anl=addfile("../analyses/gfs."+ymd+".t"+hour+"z.pgrb2.0p25.f000.grib2","r")
; ============================================================================
; ======================= Download data ======================================
; ============================================================================
; print(prod)
vnames:=getfilevarnames(prod_gfs)
slpprod = prod_gfs->MSLET_P0_L101_GLL0
slppara = para_gfs->MSLET_P0_L101_GLL0
slp_anl = anl->MSLET_P0_L101_GLL0
slpprod = (slpprod/100.) ; convert from Pa to hPa
slppara = (slppara/100.)
slp_anl = (slp_anl/100.)
dif = slpprod
dif = slppara - slpprod
dif_anl = slp_anl
dif_anl = slppara - slp_anl
; slpprod = smth9_Wrap(slpprod,0.50,-0.25,False)
; slppara = smth9_Wrap(slppara,0.50,-0.25,False)
; slp_anl = smth9_Wrap(slp_anl,0.50,0.25,False)
; ============================================================================
; ======================= Make plot ==========================================
; ============================================================================
plot_dir = image_dir+"/"+casename+"/images/"+scriptyyyymmddhh+"/"
system("mkdir -p "+plot_dir)
wks = gsn_open_wks("png", plot_dir+"/gfs_"+scriptregion+"_slp_"+casename+"_"+sprinti("%0.1i",(h)))
;gsn_define_colormap(wks,"BlueWhiteOrangeRed")
gsn_define_colormap(wks,"thetae")
;gsn_define_colormap(wks,"MPL_jet")
plot=new(4,"graphic")
res = True
res@mpMinLatF = minlat
res@mpMaxLatF = maxlat
res@mpMinLonF = minlon
res@mpMaxLonF = maxlon
;res@mpOutlineBoundarySets="AllBoundaries"
res@mpOutlineBoundarySets="GeophysicalAndUSStates"
res@mpDataBaseVersion="MediumRes"
res@gsnMaximize=True
res@tmXBLabelFontHeightF=.008
res@tmYLLabelFontHeightF=.008
res@gsnRightString="SLP (hPa)"
res@gsnAddCyclic=False
res@gsnLeftString="GFSv15 fcst init. "+hourm+"Z "+daym+" "+months(toint(monthm))+ " " +yearm+" valid "+hour+"Z "+day+ " "+months(monthind)+ " " +year+ " (F"+sprinti("%0.2i",fhours(h))+")"
res@mpOutlineDrawOrder="PostDraw"
res@mpFillColor="grey75"
res@cnInfoLabelOn=False
res@mpFillDrawOrder="PreDraw"
res@cnLabelMasking=True
res@mpGeophysicalLineColor="black"
res@mpGeophysicalLineThicknessF=2.0
res@mpNationalLineThicknessF=2.0
;res@cnRasterSmoothingOn=True
res@mpUSStateLineThicknessF=1.0
res@mpCountyLineThicknessF=.5
;res@mpUSStateLineThicknessF=3.0
res@mpNationalLineColor="black"
res@mpUSStateLineColor="black"
res@cnLineLabelsOn=False
res@pmLabelBarHeightF=.05
res@lbLabelFontHeightF=.008
res@gsnLeftStringFontHeightF=.01
res@gsnRightStringFontHeightF=.01
res@cnFillOn=True
res@mpFillOn=True
res@cnFillMode="RasterFill"
res@cnRasterSmoothingOn=True
res@cnLevelSelectionMode="ExplicitLevels"
res@cnLevels=fspan(920,1060,36)
; res@cnFillColors := (/-1,11,12,13,14,16,18,19,20,35,37,38,24,25,26,27,28,29,0/)
res@cnLinesOn=True
res@mpLimitMode="LatLon"
res@gsnDraw=False
;res@mpProjection="Mercator"
res@mpProjection="LambertConformal"
if scriptregion.eq."spac" then
res@mpLambertParallel1F = -33.0 ; two parallels
res@mpLambertParallel2F = -45.0
else
res@mpLambertParallel1F = 33.0 ; two parallels
res@mpLambertParallel2F = 45.0
end if
res@mpLambertMeridianF = -95.0 ; central meridian
if scriptregion.eq."ak" .or. scriptregion.eq."epac" then
res@mpLambertMeridianF = 215.0 ; central meridian
else if scriptregion.eq."wpac" then
res@mpLambertMeridianF = 145.0 ; central meridian
else if scriptregion.eq."spac" then
res@mpLambertMeridianF = 160.0 ; central meridian
else if scriptregion.eq."pr" then
res@mpLambertMeridianF = 294.0 ; central meridian
else if scriptregion.eq."atl" then
res@mpLambertMeridianF = 355.0 ; central meridian
res@gsnAddCyclic = True
else if scriptregion.eq."hi" then
res@mpLambertMeridianF = 202.0 ; central meridian
else if scriptregion.eq."epactc" then
res@mpLambertMeridianF = 260.0 ; central meridian
end if
end if
end if
end if
end if
end if
end if
res@mpLimitMode = "LatLon"
;res@lbLabelStride=1
res@cnLinesOn=False
res@lbLabelAutoStride=True
res@gsnFrame=False
res@lbLabelBarOn=True
if scriptregion.eq."us" then
res@mpNationalLineThicknessF=2.0
res@mpGeophysicalLineThicknessF=2.0
end if
res@cnLineLabelInterval=1
res@cnLineLabelDensityF=1.5
plot(0) = gsn_csm_contour_map(wks,slpprod,res) ; create a default plot
;---------------------------------------------------------------------
res@gsnLeftString="GFSv16 fcst init. "+hourm+"Z "+daym+" "+months(toint(monthm))+ " " +yearm+" valid "+hour+"Z "+day+ " "+months(monthind)+ " " +year+ " (F"+sprinti("%0.2i",fhours(h))+")"
plot(1) = gsn_csm_contour_map(wks,slppara,res) ; create a default plot
;-------------------------------------------------
resdif=True
resdif=res
resdif@cnFillPalette=("BlueWhiteOrangeRed")
; delete(resdif@cnFillColors)
delete(resdif@cnLevels)
resdif@cnLevels:=ispan(-14,14,2)
resdif@gsnLeftString="GFSv16 fcst minus GFSv15 fcst valid "+hour+"Z "+day+ " "+months(monthind)+ " " +year+ " (F"+sprinti("%0.2i",fhours(h))+")"
plot(2) = gsn_csm_contour_map(wks,dif,resdif) ; create a default plot
; -----------------------------------------------
resdif@gsnLeftString="GFSv16 fcst (F"+sprinti("%0.2i",fhours(h))+") minus GFS analysis (contours) valid "+hour+"Z "+day+ " "+months(monthind)+ " " +year
plot(3) = gsn_csm_contour_map(wks,dif_anl,resdif) ; create a default plot
;---------------------------------------------------------------------
hres=True
hres@cnLinesOn=True
hres@cnFillOn=False
hres@cnInfoLabelOn=False
hres@cnLevelSelectionMode="ExplicitLevels"
hres@gsnMaximize=True
hres@cnLineLabelInterval=1
hres@gsnLeftString=""
hres@gsnRightString=""
hres@cnLevels=fspan(920,1060,36)
hres@gsnDraw=False
hres@cnLabelMasking=True
hres@cnLineLabelBackgroundColor=-1
hres@cnLineLabelAngleF=0.0
hres@cnLineThicknessF=2.5
hres@cnLineLabelFontHeightF=.009
hres@cnLineLabelsOn=True
hres@cnLineColor="black"
hres@cnLowLabelsOn=False
hres@cnLowLabelBackgroundColor=-1
hres@cnLowLabelFontColor="black"
hres@cnHighLabelFontHeightF=.019
hres@cnHighLabelFont = "helvetica-bold"
hres@cnLowLabelFont = "helvetica-bold"
hres@gsnFrame=False
;print("plotting height")
plot_heightprod=gsn_csm_contour(wks,slpprod,hres)
plot_heightpara=gsn_csm_contour(wks,slppara,hres)
plot_heightanl=gsn_csm_contour(wks,slp_anl,hres)
overlay(plot(0),plot_heightprod)
overlay(plot(1),plot_heightpara)
overlay(plot(3),plot_heightanl)
;-------------------------------------------------
resP=True
resP@gsnMaximize=True
resP@txFontHeightF=.012
resP@gsnPanelLabelBar=False
resP@gsnFrame=False
gsn_panel(wks,plot,(/2,2/),resP)
print("Framing figure")
frame(wks)
print("Deleting workstation")
delete(wks)
system("convert "+plot_dir+"/gfs_"+scriptregion+"_slp_"+casename+"_"+sprinti("%0.1i",(h))+".png -trim +repage "+plot_dir+"/gfs_"+scriptregion+"_slp_"+casename+"_"+sprinti("%0.1i",(h))+".png")
end do
;------------------------------------------------
print("======================")
print("Script has finished!")
print("======================")
end