include file: BLEND_H 2
*IF DEF,A03_7A,OR,DEF,A19_1A,OR,DEF,A19_2A                                 BLEND_H.2      
      REAL                                                                 BLEND_H.3      
     + LB                         ! Blending height (m).                   BLEND_H.4      
      PARAMETER (LB = 550.0)                                               BLEND_H.5      
*ENDIF                                                                     BLEND_H.6