| 1 | ;================================================; |
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| 2 | ; Example ncl script to produce the set of |
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| 3 | ; lat-lon plots for DCMIP-2016 test case 1 |
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| 4 | ; Created by James Kent, Christiane Jablonowski |
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| 5 | ; and Paul Ullrich (University of Michigan) for DCMIP-2012 |
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| 6 | ; |
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| 7 | ; Modified by Colin Zarzycki for DCMIP-2016 |
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| 8 | ; |
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| 9 | ; v1.01 - 6/7/16 |
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| 10 | ; v1.02 - 6/8/16 - Typo in var_choice options |
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| 11 | ;================================================; |
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| 12 | load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl" |
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| 13 | load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl" |
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| 14 | load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl" |
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| 15 | load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl" |
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| 16 | ; ================================================; |
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| 17 | |
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| 18 | ; NOTE, if your model does not output T850 OR P at level |
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| 19 | ; midpoints OR you cannot calculate P from hybrid levels, you |
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| 20 | ; will need to make model specific additions denoted by |
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| 21 | ; CALCPHERE below |
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| 22 | |
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| 23 | ; PRECL needs to be in m/s for contours to plot correctly |
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| 24 | |
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| 25 | begin |
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| 26 | |
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| 27 | ;=================================================; |
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| 28 | ; open file and read in data |
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| 29 | ; GIVEN AS (time,lev,lat,lon) from 0 to n-1 |
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| 30 | ;=================================================; |
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| 31 | |
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| 32 | ; NOTE, that this file needs to be a catted file including all times at daily interval |
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| 33 | ; if you are outputting 1 file per time, you can run "ncrcat dcmip1.files.*.nc cat.nc" |
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| 34 | ; for one file |
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| 35 | |
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| 36 | ; TD f = addfile("/home/zarzycki/dcmip/results/dcmip1/newcat.nc","r") |
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| 37 | f = addfile("output_dcmip2016_regular.nc","r") |
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| 38 | ; Input useful parameters |
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| 39 | |
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| 40 | lat = f->lat |
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| 41 | lon = f->lon |
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| 42 | lev = f->lev |
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| 43 | nlat = getfilevardimsizes(f, "lat" ) |
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| 44 | nlon = getfilevardimsizes(f, "lon" ) |
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| 45 | nlev = getfilevardimsizes(f, "lev" ) |
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| 46 | |
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| 47 | ; We want plots of temperature, vertical velocity and relative vorticity |
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| 48 | ; at the 850 hPa level. We also want surface pressure. |
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| 49 | |
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| 50 | ; Select var_choice 1 - Temperature at 850 hPa |
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| 51 | ; 2 - Large-scale precipitation |
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| 52 | ; 3 - Surface Pressure |
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| 53 | |
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| 54 | var_choice = 3 |
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| 55 | |
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| 56 | if (var_choice .eq. 1) then ; Select T |
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| 57 | |
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| 58 | if (isfilevar(f,"T850")) then |
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| 59 | |
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| 60 | varload = f->T850 |
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| 61 | |
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| 62 | else |
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| 63 | |
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| 64 | ; we interp T to the 850 hPa level |
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| 65 | varload0 = f->T ; T is a 4D var |
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| 66 | varload = f->T(:,0,:,:) |
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| 67 | ; Calculate P using hybrid coefficients |
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| 68 | ; If you have pressure as a variable just do |
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| 69 | ; P = f->P |
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| 70 | ; CALCPHERE |
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| 71 | hyam = f->hyam |
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| 72 | hybm = f->hybm |
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| 73 | P0 = f->P0 |
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| 74 | PS = f->PS |
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| 75 | P = 0.0*varload0 |
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| 76 | P = pres_hybrid_ccm(PS,P0,hyam,hybm) |
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| 77 | P!0 = "time" |
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| 78 | P!1 = "lev" |
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| 79 | P!2 = "lat" |
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| 80 | P!3 = "lon" |
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| 81 | ; interp to 850 hPa level |
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| 82 | plevel = 85000.0 |
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| 83 | varload = int2p_n(P,varload0,plevel,2,1) |
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| 84 | |
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| 85 | end if |
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| 86 | |
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| 87 | else if (var_choice .eq. 2) then ; Select Large-scale precipitation |
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| 88 | |
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| 89 | varload = f->PRECL |
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| 90 | varload=varload*8.64e7 |
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| 91 | |
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| 92 | else if (var_choice .eq. 3) then ; Select PS |
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| 93 | |
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| 94 | varload = f->PS |
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| 95 | |
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| 96 | end if |
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| 97 | end if |
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| 98 | end if |
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| 99 | |
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| 100 | ; We want the output at days 6, 9, 12 and 15. If your model |
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| 101 | ; output is in 6 hourly intervals this becomes indices 24, 36, 48 and 60 |
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| 102 | |
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| 103 | output_per_day=8 |
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| 104 | day6 = 6*output_per_day |
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| 105 | day9 = 9*output_per_day |
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| 106 | day12 = 12*output_per_day |
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| 107 | day15 = 15*output_per_day |
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| 108 | |
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| 109 | var1 = varload(day6,:,:) |
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| 110 | var2 = varload(day9,:,:) |
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| 111 | var3 = varload(day12,:,:) |
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| 112 | var4 = varload(day15,:,:) |
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| 113 | |
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| 114 | ; We don't want long-name in the plots |
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| 115 | |
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| 116 | var1@long_name = " " |
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| 117 | var2@long_name = " " |
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| 118 | var3@long_name = " " |
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| 119 | var4@long_name = " " |
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| 120 | |
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| 121 | ; Delete loaded data |
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| 122 | |
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| 123 | delete(varload) |
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| 124 | |
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| 125 | ; We now produce the plot |
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| 126 | |
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| 127 | plot = new (4, graphic) ; define plot - need 4 panels |
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| 128 | |
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| 129 | res1 = True |
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| 130 | res1@gsnDraw = False ; panel plot |
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| 131 | res1@gsnFrame = False ; don't draw yet |
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| 132 | res1@cnFillOn = True |
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| 133 | res1@cnLinesOn = True |
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| 134 | res1@gsnSpreadColors = True |
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| 135 | res1@lbLabelAutoStride = True |
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| 136 | res1@gsnCenterString = "" |
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| 137 | res1@tiMainString = "" |
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| 138 | res1@vpWidthF = 0.38 |
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| 139 | res1@vpHeightF = 0.19 |
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| 140 | res1@cnLevelSelectionMode = "ManualLevels" |
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| 141 | res1@cnInfoLabelOn = False ; don't give each |
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| 142 | res1@cnLineLabelsOn = False ; panel its own |
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| 143 | res1@lbLabelBarOn = False ; label bar |
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| 144 | |
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| 145 | pres = True |
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| 146 | pres@gsnMaximize = True |
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| 147 | pres@gsnPanelLabelBar = True ; Communal label bar |
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| 148 | pres@gsnPanelLeft = 0.1 |
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| 149 | pres@gsnPanelRight = 0.9 |
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| 150 | pres@pmLabelBarOrthogonalPosF = -0.03 |
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| 151 | pres@gsnFrame = False |
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| 152 | pres@lbLabelStride = 1 |
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| 153 | |
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| 154 | res1@sfXArray = lon ; uses lon as plot x-axis |
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| 155 | res1@sfYArray = lat ; uses lat for y axis |
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| 156 | res1@trYReverse = False ; reverses y-axis, false |
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| 157 | res1@tiYAxisString = "" ; y-axis title |
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| 158 | res1@tiXAxisString = "" ; x-axis title |
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| 159 | |
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| 160 | if (var_choice .eq. 1) then ;================ Temperature plot ==================== |
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| 161 | |
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| 162 | pltTitle="DYNAMICO Test DCMIP-2016-1, T850 hPa" ; Plot title if required |
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| 163 | pres@txString = pltTitle |
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| 164 | |
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| 165 | ; Change the output type and name |
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| 166 | |
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| 167 | ;wks = gsn_open_wks("X11","cam-fv-test42latlonT850") ; output using X11 |
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| 168 | ;wks = gsn_open_wks("eps","cam-fv-test42latlonT850") ; output using eps |
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| 169 | wks = gsn_open_wks("png","DYNAMICO-test42latlonT850") ; output using png |
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| 170 | gsn_define_colormap(wks,"gui_default") |
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| 171 | |
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| 172 | res1@cnMaxLevelValF = 300.0 ; max contour color label |
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| 173 | res1@cnMinLevelValF = 230.0 ; min contour color label |
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| 174 | res1@cnLevelSpacingF = 10.0 ; contour color spacing ; choose a colormap |
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| 175 | |
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| 176 | else if (var_choice .eq. 2) then ;================ Large-scale precipitation plot ==================== |
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| 177 | |
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| 178 | pltTitle="DYNAMIXO Test 42, Large-scale precipitation" ; Plot title if required |
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| 179 | pres@txString = pltTitle |
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| 180 | |
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| 181 | var1@units = " " |
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| 182 | var2@units = " " |
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| 183 | var3@units = " " |
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| 184 | var4@units = " " |
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| 185 | |
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| 186 | res1@cnLinesOn = False ; Turn lines off for clearer plot |
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| 187 | |
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| 188 | ; Change the output type and name |
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| 189 | |
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| 190 | ;wks = gsn_open_wks("X11","cam-fv-test42latlonPRECL") ; output using X11 |
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| 191 | ;wks = gsn_open_wks("eps","cam-fv-test42latlonPRECL") ; output using eps |
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| 192 | wks = gsn_open_wks("png","test42latlonPRECL") ; output using png |
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| 193 | gsn_define_colormap(wks,"gui_default") |
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| 194 | |
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| 195 | ; Note that the maximum might be larger than these contour spacing values |
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| 196 | |
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| 197 | res1@cnMaxLevelValF = 50.0 ; max contour color label |
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| 198 | res1@cnMinLevelValF = 0.0 ; min contour color label |
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| 199 | res1@cnLevelSpacingF = 4.0 ; contour color spacing ; choose a colormap |
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| 200 | |
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| 201 | else if (var_choice .eq. 3) then ;================ Surface Pressure plot ==================== |
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| 202 | |
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| 203 | pltTitle="DYNAMICO Test 42, PS" ; Plot title if required |
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| 204 | pres@txString = pltTitle |
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| 205 | |
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| 206 | ; Convert to hPa |
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| 207 | |
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| 208 | var1=var1/100.0 |
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| 209 | var2=var2/100.0 |
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| 210 | var3=var3/100.0 |
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| 211 | var4=var4/100.0 |
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| 212 | |
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| 213 | var1@units = "hPa " |
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| 214 | var2@units = "hPa " |
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| 215 | var3@units = "hPa " |
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| 216 | var4@units = "hPa " |
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| 217 | |
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| 218 | ; Change the output type and name |
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| 219 | |
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| 220 | ;wks = gsn_open_wks("X11","cam-fv-test42latlonPS") ; output using X11 |
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| 221 | ;wks = gsn_open_wks("eps","cam-fv-test42latlonPS") ; output using eps |
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| 222 | wks = gsn_open_wks("png","test42latlonPS") ; output using png |
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| 223 | gsn_define_colormap(wks,"gui_default") |
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| 224 | |
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| 225 | res1@cnMaxLevelValF = 1020.0 ; max contour color label |
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| 226 | res1@cnMinLevelValF = 920.0 ; min contour color label |
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| 227 | res1@cnLevelSpacingF = 10.0 ; contour color spacing ; choose a colormap |
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| 228 | |
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| 229 | end if ;============== end plot choice =============== |
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| 230 | end if ;============== end plot choice =============== |
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| 231 | end if ;============== end plot choice =============== |
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| 232 | |
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| 233 | res1@gsnCenterString = "t = 6" |
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| 234 | plot(0) = gsn_csm_contour(wks,var1(:,:),res1) ; plot var1 |
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| 235 | |
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| 236 | res1@gsnCenterString = "t = 9" |
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| 237 | plot(1) = gsn_csm_contour(wks,var2(:,:),res1) ; plot var2 |
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| 238 | |
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| 239 | res1@gsnCenterString = "t = 12" |
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| 240 | plot(2) = gsn_csm_contour(wks,var3(:,:),res1) ; plot var3 |
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| 241 | |
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| 242 | res1@gsnCenterString = "t = 15" |
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| 243 | plot(3) = gsn_csm_contour(wks,var4(:,:),res1) ; plot var4 |
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| 244 | |
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| 245 | gsn_panel(wks,plot,(/2,2/),pres) ; 2x2 plot |
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| 246 | |
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| 247 | ; Add latitude and longitude labels |
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| 248 | |
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| 249 | txres3 = True |
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| 250 | txres3@txAngleF = 90. |
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| 251 | txres3@txFontHeightF = 0.02 |
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| 252 | gsn_text_ndc(wks,"Latitude",0.08,0.49,txres3) |
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| 253 | |
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| 254 | txres3@txAngleF = 0. |
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| 255 | gsn_text_ndc(wks,"Longitude",0.5,0.22,txres3) |
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| 256 | |
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| 257 | frame(wks) |
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| 258 | |
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| 259 | end |
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| 260 | |
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| 261 | |
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| 262 | |
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| 263 | |
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| 264 | |
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| 265 | |
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