A single meteorological input file (wind velocity and atmospheric pressure) is read when meteorological forcing has been indicated by the NWS parameter in the fort.15 file. Please see the fort.15 file for complete details of the NWS parameter.
The spatial extents of the meteorological must be consistent with the ADCIRC model domain. For example, if ADCIRC uses negative longitude values to indicate locations W of the Greenwich meridian, the meteorological file must be similarly organized. Any grid that crosses the Greenwich Meridian should be organized so that the seam occurs @ 180 deg longitude. Therefore, the meteorological and ADCIRC grids should use negative longitudes W of the Greenwich Meridian and positive longitudes to the E.
See fort.22 file format for details.