GSPACE

     GSPACE sets the grid spacing of the ETA model domain where:  

		GSPACE = DLHD

     from the eta_run.csh script. 
                                                                         
     GSPACE is  the grid spacing of the computational model domain in   
     degrees longitude respectively.  A VERY rough conversion to km over 
     the central US would be: 
                                                                         
             km/150 = delta degrees                                      
                                                                         
     Thus from above:                                                    
                                                                         
             10km grid spacing: GSPACE = 0.067                       
             15km grid spacing: GSPACE = 0.098                        
             32km grid spacing: GSPACE = 0.213                       

      GSPACE is the same as the values for DLMD and DLHD in eta_run.csh.