David, I use the 218 tiles with the WRF from Bob Rozumalski's SOO/SAC WRF EMS distribution: http://strc.comet.ucar.edu/wrf/userguide_chapter6.html The wrf_prep.pl script uses a program called tile_prep.exe to preprocess the NAM tiles. Steve Chiswell Unidata User Support > Hi guys, > > > > Is there a way to take adjacent 12km NAM tiles (grib 2 format) and > combine them into a single custom tile? I am trying to combine 4 tiles > from the NAM 218 grid and use that data to initialize a WRF run. WPS > 2.2.1 does not seem to have a mechanism to take multiple datasets of the > same data type and merge them together while keeping all the data from > all the tiles. I think I will have to do the merge the tiles outside of > the WRF environment. Is that even possible (or sensible?) > > > > Thanks! > > > > Dave > > > > +++++++++++++++++++++++ > > David Fitzgerald > > Department of Earth Sciences > > Millersville University > > Millersville Pa 17551 > > > > Phone: 717-871-2394 > > > > > > Faithless is he that says farewell when the road darkens. > > --Tolkien > > > Ticket Details =================== Ticket ID: SOG-499151 Department: Support GEMPAK Priority: Normal Status: Closed