WRF Preprocessing System Version 3.0.1: Known Problems and Fixes

Problem with Using Lat-Lon Projection in Geogrid : (Re-posted 8/4/08)

Problem: When using a lat-lon projection for regional ARW domains, no topography is produced for areas west of the domain center when 30-second topography data is used.

Solution: This issue arises when using a lat-lon projection with the average_gcell interpolation scheme, which is the default in the GEOGRID.TBL for 30-second topography data. Either use a different resolution of geographical data, or remove the average_gcell(4.0) option from the GEOGRID.TBL.