& DWNSLP_slope, DWNSLP_rec_mu, DWNSLP_drFlow
_RL DWNSLP_slope, DWNSLP_rec_mu, DWNSLP_drFlow
drFlowMin = DWNSLP_drFlow
CALL WRITE_0D_RL( DWNSLP_drFlow,INDEX_NONE,'DWNSLP_drFlow =',
& DWNSLP_slope, DWNSLP_rec_mu, DWNSLP_drFlow,
DWNSLP_drFlow = 0.