Re: accumulated precipitation

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Sun Dec 01 2013 - 08:51:50 MST

forwarded to wrf-help

On 12/1/13 5:56 AM, F醫ima Manguela wrote:
> hello
>
>
> I'm Fatima and I am new to NCL. I'm using NCL for my thesis in
> Meteorology.
>
> how can I add the date and time in my script.
> this is my script:
>
> ; Example script to produce plots for a WRF real-data run,
> ; with the ARW coordinate dynamics option.
> ; Interpolating to specified pressure levels
>
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
> ;load "./WRFUserARW.ncl"
>
> begin
> ;
> ; The WRF ARW input file.
> ; This needs to have a ".nc" appended, so just do it.
> a = addfile("./wrfout_d02_2007-02-22_00:00:00.nc","r")
>
>
> ; We generate plots, but what kind do we prefer?
> ; type = "x11"
> type = "pdf"
> ; type = "ps"
> ; type = "ncgm"
> wks = gsn_open_wks(type,"plt_PressureLevel2cu1")
>
>
> ; Set some basic resources
> res = True
> res@MainTitle = "REAL-TIME WRF cu1"
> res@Footer = False
>
> pltres = True
> mpres = True
> mpres@mpGeophysicalLineColor = "Black"
> mpres@mpNationalLineColor = "Black"
> mpres@mpUSStateLineColor = "Black"
> mpres@mpGridLineColor = "Black"
> mpres@mpLimbLineColor = "Black"
> mpres@mpPerimLineColor = "Black"
> mpres@mpGeophysicalLineThicknessF = 2.0
> mpres@mpGridLineThicknessF = 2.0
> mpres@mpLimbLineThicknessF = 2.0
> mpres@mpNationalLineThicknessF = 2.0
> mpres@mpUSStateLineThicknessF = 2.0
>
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>
> ; What times and how many time steps are in the data set?
> times = wrf_user_getvar(a,"times",-1) ; get all times in the file
> ntimes = dimsizes(times) ; number of times in the file
>
>
> ; The specific pressure levels that we want the data interpolated to.
> pressure_levels = (/ 850/) ; pressure levels to plot
> nlevels = dimsizes(pressure_levels) ; number of pressure levels
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>
> ; This is the big loop over all of the time periods to process.
>
> do it = 1,ntimes-1
> print("Working on time " + it )
> time = it
> res@TimeLabel = times(it) ; Set Valid time to use on plots
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ; First get the variables we will need
>
> tc = wrf_user_getvar(a,"tc",it) ; T in C
> u = wrf_user_getvar(a,"ua",it) ; u averaged to mass points
> v = wrf_user_getvar(a,"va",it) ; v averaged to mass points
> p = wrf_user_getvar(a, "pressure",it) ; pressure is our vertical coordinate
> z = wrf_user_getvar(a, "z",it) ; grid point height
> rh = wrf_user_getvar(a,"rh",it) ; relative humidity
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>
> do level = 0,nlevels-1 ; LOOP OVER LEVELS
>
> pressure = pressure_levels(level)
>
> tc_plane = wrf_user_intrp3d(tc,p,"h",pressure,0.,False)
> z_plane = wrf_user_intrp3d( z,p,"h",pressure,0.,False)
> rh_plane = wrf_user_intrp3d(rh,p,"h",pressure,0.,False)
> u_plane = wrf_user_intrp3d( u,p,"h",pressure,0.,False)
> v_plane = wrf_user_intrp3d( v,p,"h",pressure,0.,False)
>
> u_plane = u_plane*1.94386 ; kts
> v_plane = v_plane*1.94386 ; kts
> u_plane@units = "kts"
> v_plane@units = "kts"
>
>
> ; Plotting options for T
> opts = res
> opts@cnLineColor = "Red"
> opts@ContourParameters = (/ 5.0 /)
> opts@cnInfoLabelOrthogonalPosF = 0.07 ; offset second label information
> opts@gsnContourLineThicknessesScale = 2.0
> contour_tc = wrf_contour(a,wks,tc_plane,opts)
> delete(opts)
>
>
> ; Plotting options for RH
> opts = res
> opts@cnFillOn = True
> opts@ContourParameters = (/ 10., 90., 10./)
> opts@cnFillColors = (/"White","White","White", \
> "White","Chartreuse","Green",\
> "Green3","Green4", \
> "ForestGreen","PaleGreen4"/)
> contour_rh = wrf_contour(a,wks,rh_plane,opts)
> delete(opts)
>
>
> ; Plotting options for Wind Vectors
> opts = res
> opts@FieldTitle = "Wind" ; overwite Field Title
> opts@NumVectors = 12 ; density for wind barbs
> vector = wrf_vector(a,wks,u_plane,v_plane,opts)
> delete(opts)
>
>
> ; Plotting options for Geopotential Heigh
> opts_z = res
> opts_z@cnLineColor = "Blue"
> opts_z@gsnContourLineThicknessesScale = 3.0
>
>
> ; MAKE PLOTS
>
> if ( pressure .eq. 850 ) then ; plot temp, rh, height, wind barbs
> opts_z@ContourParameters = (/ 1400.,1600.,20.0 /)
> contour_height = wrf_contour(a,wks, z_plane,opts_z)
> plot =
> wrf_map_overlays(a,wks,(/contour_rh,contour_tc,contour_height, \
> vector/),pltres,mpres)
> end if
>
>
> delete(opts_z)
>
> end do ; END OF LEVEL LOOP
>
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>
> end do ; END OF TIME LOOP
>
> end
>
>
> how can i make script for accumulated precipitation
>
> thank you
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Received on Sun Dec 1 08:51:49 2013

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