C&&&&&&&&
C PROGRAM DOCUMENTATION BLOCK
C
CPROGRAM: narr_snowget
C  PRGMMR:  PERRY SHAFRAN?               ORG: W/NP20    DATE: ????-??
C
CABSTRACT: 
C   READS IN USAF SNOW DEPTH
C   MAKES SNOW FILE FOR NARR(EDAS)
C
C PROGRAM HISTORY LOG:
C    200?-??   P. SHAFRAN?
C
C
C USAGE:
C    echo "YY MM DD" | narr_getsst.x
C         YY, MM, DD are the date code
C
C INPUT FILES:
C    UNIT5   text file
C    UNIT41  grib file: global snowdepth
C    UNIT42  grib file: USAF snow
C    UNIT44  mask
C    UNIT46  ???nbs
C
C OUTPUT FILES:
C    UNIT51  grib file: merged snow
C
C ROUTINES CALLED
C     BAOPENR
C     BAOPEN
C     SNO8GET
C     MAKGDS
C     PUTGB
C
CATTRIBUTES:
C   LANGUAGE: F90
C
C$$$$$$$$$$$$