C C $Id: cn09f.f,v 1.6 1997/10/08 17:21:53 haley Exp $ C C*********************************************************************** C * C Copyright (C) 1995 * C University Corporation for Atmospheric Research * C The use of this Software is governed by a License Agreement * C * C*********************************************************************** C C File: cn09f.f C C Author: Ethan Alpert (converted to Fortran by Mary Haley) C National Center for Atmospheric Research C PO 3000, Boulder, Colorado C C Date: Thu Sep 28 09:59:38 MDT 1995 C C Description: Reads a netCDF file and produces a series of C surface pressure contour plots. C external NhlFAppClass external NhlFNcgmWorkstationClass external NhlFPSWorkstationClass external NhlFXWorkstationClass external NhlFScalarFieldClass external NhlFContourPlotClass parameter(NCOLORS=23) C C Declare variables for the HLU routine calls. C integer appid, workid, field1, con1 integer srlist, i, j, k real cmap(3,NCOLORS) C C Declare variables for getting information from netCDF file. C integer ncid, lon_id, lat_id, frtime_id, press_id, frtime(7) real press(36,33), spv real lon(36), lat(33) integer start(3), count(3), lonlen, latlen, frtimelen character*256 filename character*20 string character*50 recname C C Default is to create an NCGM file. C integer NCGM, X11, PS C C Default is to create an NCGM file. C NCGM=1 X11=0 PS=0 C C Initialize the HLU library and set up resource template. C call NhlFInitialize call NhlFRLCreate(srlist,'setrl') call NhlFRLClear(srlist) call NhlFRLSetString(srlist,'appDefaultParent','True',ierr) call NhlFRLSetString(srlist,'appUsrDir','./',ierr) call NhlFCreate(appid,'cn09',NhlFAppClass,0,srlist,ierr) cmap(1,1) = 0.0 cmap(2,1) = 0.0 cmap(3,1) = 0.0 cmap(1,2) = 1.0 cmap(2,2) = 1.0 cmap(3,2) = 1.0 cmap(1,3) = 0.0 cmap(2,3) = 0.0 cmap(3,3) = 0.0 cmap(1,4) = 1.0 cmap(2,4) = 0.0 cmap(3,4) = 0.0 cmap(1,5) = 0.0 cmap(2,5) = 1.0 cmap(3,5) = 0.0 cmap(1,6) = 0.0 cmap(2,6) = 0.0 cmap(3,6) = 1.0 cmap(1,7) = 1.0 cmap(2,7) = 1.0 cmap(3,7) = 0.0 cmap(1,8) = 0.0 cmap(2,8) = 1.0 cmap(3,8) = 1.0 cmap(1,9) = 1.0 cmap(2,9) = 0.0 cmap(3,9) = 1.0 cmap(1,10) = 0.5 cmap(2,10) = 0.0 cmap(3,10) = 0.0 cmap(1,11) = 0.5 cmap(2,11) = 1.0 cmap(3,11) = 1.0 cmap(1,12) = 0.0 cmap(2,12) = 0.0 cmap(3,12) = 0.5 cmap(1,13) = 1.0 cmap(2,13) = 1.0 cmap(3,13) = 0.5 cmap(1,14) = 0.5 cmap(2,14) = 0.0 cmap(3,14) = 1.0 cmap(1,15) = 1.0 cmap(2,15) = 0.5 cmap(3,15) = 0.0 cmap(1,16) = 0.0 cmap(2,16) = 0.5 cmap(3,16) = 1.0 cmap(1,17) = 0.5 cmap(2,17) = 1.0 cmap(3,17) = 0.0 cmap(1,18) = 0.5 cmap(2,18) = 0.0 cmap(3,18) = 0.5 cmap(1,19) = 0.5 cmap(2,19) = 1.0 cmap(3,19) = 0.5 cmap(1,20) = 1.0 cmap(2,20) = 0.5 cmap(3,20) = 1.0 cmap(1,21) = 0.0 cmap(2,21) = 0.5 cmap(3,21) = 0.0 cmap(1,22) = 0.5 cmap(2,22) = 0.5 cmap(3,22) = 1.0 cmap(1,23) = 1.0 cmap(2,23) = 0.0 cmap(3,23) = 0.5 count(1) = 3 count(2) = NCOLORS if (NCGM.eq.1) then C C Create an NCGM workstation. C call NhlFRLClear(srlist) call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,count, + ierr) call NhlFRLSetString(srlist,'wkMetaName','./cn09f.ncgm',ierr) call NhlFCreate(workid,'cn09Work', + NhlFNcgmWorkstationClass,0,srlist,ierr) else if (X11.eq.1) then C C Create an xworkstation object. C call NhlFRLClear(srlist) call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,count, + ierr) call NhlFRLSetString(srlist,'wkPause','True',ierr) call NhlFCreate(workid,'cn09Work',NhlFXWorkstationClass, + 0,srlist,ierr) else if (PS.eq.1) then C C Create a PostScript workstation. C call NhlFRLClear(srlist) call NhlFRLSetMDFloatArray(srlist,'wkColorMap',cmap,2,count, + ierr) call NhlFRLSetString(srlist,'wkPSFileName','./cn09f.ps',ierr) call NhlFCreate(workid,'cn09Work', + NhlFPSWorkstationClass,0,srlist,ierr) endif C C Open data file containing surface pressure data for C entire globe. C call gngpat(filename,'data',ierr) do 10 i=1,256 if( filename(i:i).eq.char(0) ) then filename(i:i+15)='/cdf/contour.cdf' goto 15 endif 10 continue C C The second argument to 'ncopn' should be NCNOWRIT, but since we C can't include 'netcdf.inc', we are using the value '0' instead. C 15 ncid = ncopn(filename,0,ierr) C C Get the lat/lon dimensions. C lat_id = ncdid(ncid,'lat',ierr) lon_id = ncdid(ncid,'lon',ierr) frtime_id = ncdid(ncid,'frtime',ierr) call ncdinq(ncid,lat_id,recname,latlen,ierr) call ncdinq(ncid,lon_id,recname,lonlen,ierr) call ncdinq(ncid,frtime_id,recname,frtimelen,ierr) frtime_id = ncvid(ncid,'frtime',ierr) C C Read in surface pressure and convert it to millibars. C press_id = ncvid(ncid,'Psl',ierr) start(1) = 1 start(2) = 1 start(3) = 1 count(1) = lonlen count(2) = latlen count(3) = 1 call ncvgt(ncid,press_id,start,count,press,ierr) call ncagt(ncid,press_id,'_FillValue',spv,ierr) do 30 j = 1,latlen do 20 k=1,lonlen press(k,j) = press(k,j)/100. 20 continue 30 continue C C Read in lat/lon/frtime values. C lat_id = ncvid(ncid,'lat',ierr) count(1) = latlen call ncvgt(ncid,lat_id,start,count,lat,ierr) lon_id = ncvid(ncid,'lon',ierr) count(1) = lonlen call ncvgt(ncid,lon_id,start,count,lon,ierr) frtime_id = ncvid(ncid,'frtime',ierr) count(1) = frtimelen call ncvgt(ncid,frtime_id,start,count,frtime,ierr) C C Create scalar field configured with first time step C of pressure data. C count(1) = lonlen count(2) = latlen call NhlFRLClear(srlist) call NhlFRLSetMDFloatArray(srlist,'sfDataArray',press,2,count, + ierr) call NhlFRLSetFloat(srlist,'sfMissingValueV',spv,ierr) call NhlFRLSetFloat(srlist,'sfXCStartV',lon(1),ierr) call NhlFRLSetFloat(srlist,'sfXCEndV',lon(lonlen),ierr) call NhlFRLSetFloat(srlist,'sfYCStartV',lat(1),ierr) call NhlFRLSetFloat(srlist,'sfYCEndV',lat(latlen),ierr) call NhlFCreate(field1,'field1',NhlFscalarFieldClass,appid,srlist, + ierr) C C Create contour object using manual level spacing and solid C color fill C call NhlFRLClear(srlist) call NhlFRLSetInteger(srlist,'cnScalarFieldData',field1,ierr) call NhlFRLSetString(srlist,'cnLevelSelectionMode','ManualLevels', + ierr) call NhlFRLSetFloat(srlist,'cnMinLevelValF',960.0,ierr) call NhlFRLSetFloat(srlist,'cnMaxLevelValF',1040.0,ierr) call NhlFRLSetFloat(srlist,'cnLevelSpacingF',5.0,ierr) call NhlFRLSetInteger(srlist,'cnMaxLevelCount',25,ierr) call NhlFRLSetString(srlist,'cnInfoLabelOn','OFF',ierr) call NhlFRLSetString(srlist,'cnHighLabelsOn','OFF',ierr) call NhlFRLSetString(srlist,'cnLowLabelsOn','OFF',ierr) call NhlFRLSetString(srlist,'cnLineLabelsOn','False',ierr) call NhlFRLSetString(srlist,'cnLinesOn','False',ierr) call NhlFRLSetString(srlist,'cnFillOn','True',ierr) call NhlFRLSetString(srlist,'tiMainString','Forecast Time 0',ierr) call NhlFCreate(con1,'con1',NhlFcontourPlotClass,workid,srlist, + ierr) C C Draw first frame C call NhlFDraw(con1,ierr) call NhlFFrame(workid,ierr) C C Loop and draw remaining frames reseting the scalar field object C with a new array for each iteration C do 60 i = 2,frtimelen C C Read in surface pressure and convert it to millibars. C start(1) = 1 start(2) = 1 start(3) = i count(1) = lonlen count(2) = latlen count(3) = 1 call ncvgt(ncid,press_id,start,count,press,ierr) do 50 j = 1,latlen do 40 k=1,lonlen press(k,j) = press(k,j)/100. 40 continue 50 continue call NhlFRLClear(srlist) count(1) = lonlen count(2) = latlen call NhlFRLSetMDFloatArray(srlist,'sfDataArray',press,2,count, + ierr) C C Create new scalar field. C call NhlFSetValues(field1,srlist,ierr) call NhlFRLClear(srlist) write(string,55)frtime(i) 55 format('Forecast Time ',i2) call NhlFRLSetString(srlist,'tiMainString',string,ierr) call NhlFSetValues(con1,srlist,ierr) call NhlFDraw(con1,ierr) call NhlFFrame(workid,ierr) 60 continue C C Close the netCDF file. C call ncclos(ncid,ierr) C C NhlFDestroy destroys the given id and all of its children. C call NhlFRLDestroy(srlist) call NhlFDestroy(appid,ierr) C C Restores state. C call NhlFClose stop end