There are a couple of methods for the time. I do not
have a gfs file but ...
-- Generally, a variable will have f = addfile(...) x = f->X printVarSummary(X) ; <- always look at variable float x ( :, : ) [snip] forecast_time : 24 forecast_time_units : hours initial_time : 11/11/2008 (00:00) In your script use x@forecast and/or x@initial_time -- Use setfileoption in various modes. http://www.ncl.ucar.edu/Document/Functions/Built-in/setfileoption.shtml Try and see what you get setfileoption(...) f = addfile(...) x = f->X printVarSummary(x) Try setfileoption("grib","SingleElementDimensions", "Initial_time") or setfileoption("grib","SingleElementDimensions", "Forecast_time") or setfileoption("grib","SingleElementDimensions", (/"Initial_time", "Forecast_time"/)) The latter may look like: float x ( initial_time0_hours, forecast_time1, lat_3, lon_3 ) There will be several 'time variables' ======== A more efficient method for looking at the files is ncl_filedump via options %> ncl_filedump gfs.grb | less %> ncl_filedump -itime gfs.grb | less %> ncl_filedump -ftime gfs.grb | less %> ncl_filedump -itime -ftime gfs.grb | less Good luck On 12/12/12 7:38 AM, Jonas Kaufmann wrote: > Hello, > > I am using NCL to create plots from the GFS grib files. Now I am > trying to display a label with the current forecast time on the map. I > have already positioned my text label with gsn_text_ndc, but I could > not find a method to get the current forecast time. Which variable do > I have to use for this? > > grib_file=filename > fin = addfile(grib_file,"r") > lat2d = fin->gridlat_0 > lon2d = fin->gridlon_0 > wind_u = fin->UGRD_P0_L103_GLC0(:,:) > wind_v = fin->VGRD_P0_L103_GLC0(:,:) > > > Thank you for your help! > > > Best regards, > > Jonas Kaufmann > _______________________________________________ > ncl-talk mailing list > List instructions, subscriber options, unsubscribe: > http://mailman.ucar.edu/mailman/listinfo/ncl-talk > _______________________________________________ ncl-talk mailing list List instructions, subscriber options, unsubscribe: http://mailman.ucar.edu/mailman/listinfo/ncl-talkReceived on Thu Dec 13 00:03:44 2012
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