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NCL
系统平台: |
ncl mask青藏高原 |
问题截图: |
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问题概况: |
我想只保留青藏高原边界线以内的内容,想要把边界线外的mask掉 |
我看过提问的智慧: |
看过 |
自己思考时长(天): |
14 |
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begin
;************************************************
;************************************************
; create pointer to file and read in data
;************************************************
shp_fname = "/cygdrive/c/Users/Administrator/Desktop/NN/tibetan/tibet.shp"
fils = systemfunc("ls /cygdrive/c/Users/Administrator/Desktop/NN/GLDAS_CLM10SUBP_3H.A2010001.0000.001.grb")
printVarSummary(fils) ; full path to files
f = addfiles(fils, "r")
ListSetType(f,"join")
printVarSummary(f)
; ListSetType(f,"join")
sw = f[:]->SOIL_M_GDS0_DBLY
printVarSummary(sw)
printVarSummary(swy)
copy_VarCoords(sw(0,:,:), swy)
udims = dimsizes(swy)
opt = True
opt@return_mask = True
TP_mask = shapefile_mask_data(swy,shp_fname,opt)
res = True
wks = gsn_open_wks("png", "sm11")
gsn_define_colormap(wks,"MPL_RdYlBu")
;res@gsnMaximize = True
res@gsnDraw = False
res@gsnFrame = False
res@mpOutlineOn = False
res@cnFillOn = True
res@cnLinesOn = False
res@cnLineLabelsOn = False
res@lbLabelBarOn = True
res@lbBoxLinesOn = True
res@cnSmoothingOn = True
;res@cnSmoothingDistanceF = True
res@cnSmoothingTensionF = True
res@gsnSpreadColors = True
res@gsnSpreadColorStart = 3
res@gsnSpreadColorEnd = 9
res@cnLevelSelectionMode = "ExplicitLevels"
res@gsnAddCyclic = False
res@cnFillDrawOrder = "Draw"
;axis and ticks set
res@mpMinLonF = 70 ; set min lon
res@mpMaxLonF = 110 ; set max lon
res@mpMinLatF = 24 ; set min lat
res@mpMaxLatF = 45 ; set max lat
res@tmXBValues = (/70.,80.,90.,100.,110./);,120.,130.,140/)
res@tmXBLabels = (/"70E","80E","90E","100E","110E"/);,"120E","130E","140E"/)
res@tmYLValues = (/20.,25.,30.,35.,40.,45./) ;,50.,55/) ;(/15.,
res@tmYLLabels = (/"20N","25N","30N","35N","40N","45N"/) ;,"50N","55N"/) ;(/"15N",
res@tmXTOn =False ;turns off the top tick marks
res@tmYLMinorOn =False ;Turns off minor tick marks
res@mpDataBaseVersion = "MediumRes"
res@mpLandFillColor = "white"
res@mpInlandWaterFillColor = "white"
res@mpOceanFillColor = "white"
res@gsnLeftString ="soil moisture"
res@gsnRightString ="m~S~3~N~/m~S~3~N~"
plots1 = gsn_csm_contour_map(wks,swy,res)
lnres = True
poly_mask0 = gsn_add_shapefile_polylines(wks,plots1,shp_fname,lnres)
draw(plots1)
frame(wks)
end
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