RETRIEVE,
    CLASS      = OD,
    TYPE       = OF,
    STREAM     = OCEA,
    EXPVER     = 0001,
    REPRES     = SH,
    LEVTYPE    = DP,
    LEVELIST   = 0/5,
    PARAM      = 129/130/145,
    DATE       = 20120101,
    TIME       = 0000,
    STEP       = 24/48/72/96,
    NUMBER     = 0/1/2/3/4,
    DOMAIN     = G,
    SYSTEM     = 3,
    METHOD     = 1,
    PRODUCT    = INST,
    SECTION    = H,
    TARGET     = data.reference,
    DATABASE   = marsod,
    EXPECT     = 60