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本帖最后由 空城不空 于 2017-8-27 14:02 编辑
我所处理的数据是三天的,然后用官网上现成的脚本来画图( http://www2.mmm.ucar.edu/wrf/OnL ... ECIP/wrf_Precip.htm )
画出来的图只有第一天的,我用这个脚本去画WRF官网转下来的数据也是只有一天的。
(0) Working on time: 2017-07-12_00:00:00
(0) Working on time: 2017-07-12_06:00:00
(0) Working on time: 2017-07-12_12:00:00
我不太清楚哪里还需要更改。。。
下面这个是ncl脚本
- ; Example script to produce plots for a WRF real-data run,
- ; with the ARW coordinate dynamics option.
- load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
- load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
- begin
- ;
- ; The WRF ARW input file.
- ; This needs to have a ".nc" appended, so just do it.
- a = addfile("wrfout_d01_2017-07-12_00_00_00","r")
- ; We generate plots, but what kind do we prefer?
- ; type = "x11"
- type = "pdf"
- ; type = "ps"
- ; type = "ncgm"
- wks = gsn_open_wks(type,"plt_Precip")
- ; Set some basic resources
- res = True
- res@MainTitle = "Heavy Rainfall"
- pltres = True
- mpres = True
- mpres@mpGeophysicalLineColor = "Black"
- mpres@mpNationalLineColor = "Black"
- mpres@mpUSStateLineColor = "Black"
- mpres@mpGridLineColor = "Black"
- mpres@mpLimbLineColor = "Black"
- mpres@mpPerimLineColor = "Black"
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ; What times and how many time steps are in the data set?
- FirstTime = True
- times = wrf_user_getvar(a,"times",-1) ; get all times in the file
- ntimes = dimsizes(times) ; number of times in the file
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- do it = 0,ntimes-1,2 ; TIME LOOP
- print("Working on time: " + times(it) )
- if (FirstTime) then ; Save some times for tracking tendencies
- times_sav = times(it)
- end if
- res@TimeLabel = times(it) ; Set Valid time to use on plots
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ; First get the variables we will need
- slp = wrf_user_getvar(a,"slp",it) ; slp
- wrf_smooth_2d( slp, 3 ) ; smooth slp
- ; Get non-convective, convective and total precipitation
- ; Calculate tendency values
- rain_exp = wrf_user_getvar(a,"RAINNC",it)
- rain_con = wrf_user_getvar(a,"RAINC",it)
- rain_tot = rain_exp + rain_con
- rain_tot@description = "Total Precipitation"
- if( FirstTime ) then
- if ( it .eq. 0 ) then
- rain_exp_save = rain_exp
- rain_con_save = rain_con
- rain_tot_save = rain_tot
- else
- rain_exp_save = wrf_user_getvar(a,"RAINNC",it-1)
- rain_con_save = wrf_user_getvar(a,"RAINC",it-1)
- rain_tot_save = rain_exp_save + rain_con_save
- FirstTime = False
- times_sav = times(it-1)
- end if
- end if
- rain_exp_tend = rain_exp - rain_exp_save
- rain_con_tend = rain_con - rain_con_save
- rain_tot_tend = rain_tot - rain_tot_save
- rain_exp_tend@description = "Explicit Precipitation Tendency"
- rain_con_tend@description = "Param Precipitation Tendency"
- rain_tot_tend@description = "Precipitation Tendency"
- ; Bookkeeping, just to allow the tendency at the next time step
- rain_exp_save = rain_exp
- rain_con_save = rain_con
- rain_tot_save = rain_tot
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- if( .not. FirstTime ) then ; We will skip the first time
- ; Plotting options for Sea Level Pressure
- opts_psl = res
- opts_psl@ContourParameters = (/ 900., 1100., 2. /)
- opts_psl@cnLineColor = "Blue"
- opts_psl@cnInfoLabelOn = False
- opts_psl@cnLineLabelFontHeightF = 0.01
- opts_psl@cnLineLabelPerimOn = False
- opts_psl@gsnContourLineThicknessesScale = 1.5
- contour_psl = wrf_contour(a,wks,slp,opts_psl)
- delete(opts_psl)
-
- ; Plotting options for Precipitation
- opts_r = res
- opts_r@UnitLabel = "mm"
- opts_r@cnLevelSelectionMode = "ExplicitLevels"
- opts_r@cnLevels = (/ .1, .2, .4, .8, 1.6, 3.2, 6.4, \
- 12.8, 25.6, 51.2, 102.4/)
- opts_r@cnFillColors = (/"White","White","DarkOliveGreen1", \
- "DarkOliveGreen3","Chartreuse", \
- "Chartreuse3","Green","ForestGreen", \
- "Yellow","Orange","Red","Violet"/)
- opts_r@cnInfoLabelOn = False
- opts_r@cnConstFLabelOn = False
- opts_r@cnFillOn = True
-
- ; Total Precipitation (color fill)
- contour_tot = wrf_contour(a,wks, rain_tot, opts_r)
-
- ; Precipitation Tendencies
- opts_r@SubFieldTitle = "from " + times_sav + " to " + times(it)
-
- contour_tend = wrf_contour(a,wks, rain_tot_tend,opts_r) ; total (color)
- contour_res = wrf_contour(a,wks,rain_exp_tend,opts_r) ; exp (color)
- opts_r@cnFillOn = False
- opts_r@cnLineColor = "Red4"
- contour_prm = wrf_contour(a,wks,rain_con_tend,opts_r) ; con (red lines)
- delete(opts_r)
- ; MAKE PLOTS
- ; Total Precipitation
- plot = wrf_map_overlays(a,wks,contour_tot,pltres,mpres)
- ; Total Precipitation Tendency + SLP
- plot = wrf_map_overlays(a,wks,(/contour_tend,contour_psl/),pltres,mpres)
- ; Non-Convective and Convective Precipiation Tendencies
- plot = wrf_map_overlays(a,wks,(/contour_res,contour_prm/),pltres,mpres)
- end if ; END IF FOR SKIPPING FIRST TIME
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- times_sav = times(it)
- FirstTime = False
- end do ; END OF TIME LOOP
- end
复制代码
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