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C71 CONTROLS FOR HORIZONTAL PLANE SCALAR FIELD CONTOURING - RESIDUAL ONLY
*
* ISSPH: NOT USED
*
* NPSPH: NOT USED
* ISRSPH: 1 TO WRITE FILE FOR RESIDUAL SCALAR VARIABLE IN HORIZONTAL PLANE
*
* ISPHXY: 0 DOES NOT WRITE I,J,X,Y IN ***CNH.OUT AND R***CNH.OUT FILES (RESIDUAL ONLY)
* 1 WRITES I,J ONLY IN ***CNH.OUT AND R***CNH.OUT FILES (RESIDUAL ONLY)
* 2 WRITES I,J,X,Y IN ***CNH.OUT AND R***CNH.OUT FILES (RESIDUAL ONLY)
*
* DATA LINE REPEATS 7 TIMES FOR SAL,TEM,DYE,SFL,TOX,SED,SND
*
C71 ISSPH NPSPH ISRSPH ISPHXY